TR-2011-27b OFFICE OF COMMUNITY DEVELOPMENT
CITY HALL
10300 TORRE AVENUE • CUPERTINO, CA 95014-3255
C U P E RT 1 N O (408) 777-3308 • FAX (408) 777-3333 • planning[a)_cuqertino.org
September 2, 2011
Mr. Jeff TNhite
Apple, Inc.
1 Infinite Loop MS47-20PS
Cupertino, CA 95014
SUBJECT: TREE REMOVAL PERMIT ACTION LETTER - Application TR-2011-27
T'his letter confirms the decision of the Director of Community Development, given on September 2,
2011, approving a tree removal permit to remove 19 trees, including 2 flowering cherry trees, 11
eucalyptus trees, 4 evergreen pear trees,l privet tree, and 1 myrtle tree, and provide replacement
trees in accordance with the City's Protected Trees Ordinance, at an existing office park located at
20605 Valley Green Dr with the following conditions:
1. APPROVED PROJECT
This approval is based on the plans submitted by the applicant dated August 29, 2011, including
the layout and tree removal plans (Sheet L1.0), landscape hydrozone plans (Sheet L2.0), landscape
irrigation plans (Sheet L2.1), planting plans (Sheet L3.0), landscape construction details (Sheets
L4.0 & L4.1), and landscape specifications (Sheet L5.0); the applicant's justification statement
dated July 5, 2011; and arborist report entitled "A review of Tree Removals Proposed for
Landscape and Parking Lot Renovations at the following three Apple, Inc. sites: 20605 Valley
Green Drive, 20400 Mariani Avenue, and 10500 N. De Anza Boulevard" prepared by David L.
Babby, City Arborist, of Arbor Resources on March 15, 2011, except as may be amended by
conditions in this approval.
2. TREE REPLACEMENTS
T'he applicant shall be required to plant thirty-six (36) 36" inch box trees, consisting of 9 Coast
Live Oak trees, 7 New Zealand Christmas trees, 10 Chinese Pistache trees, 2 Valley Oak trees, 6
Fruitless Olive trees, and 2 Japanese Maple trees on the subject property in accordance with the
approved planting plans (Sheet L3.0) and the City's Protected Trees Ordinance. The required
replacement trees shall be planted within 60 days of the effective approval date of this tree
removal permit.
3. DIRECTOR'S MINOR MODIFICATION
No trees shall be removed in conjunction with this tree removal permit without the concurrent
and effective approval of the Director's Minor Modification (DIR-2011-17� for the modification to
the parking lot and landscape planters on the subject property.
4. NOTICE OF FEES, DEDICATIONS, RESERVATIONS OR OTHER EXACTIONS
The Conditions of Project Approval set forth herein may include certain fees, dedication
requirements, reservation requirements, and other exactions. Pursuant to Government Code
Section 66020(d) (1), these Conditions constitute written notice of a statement of the amount of
such fees, and a description of the dedications, reservations, and other exactions. You are hereby
further notified that the 90-day approval period in which you may protest these fees, dedications,
reservations, and other exactions, pursuant to Government Code Section 66020(a), has begun. If
you fail to file a protest within this 90-day period complying with all of the requirements of
Section 66020, you will be legally barred from later challenging such exactions.
Staff has made the findings necessary to grant the tree removal permit in accordance with Section
14.18.180 of the Protected Trees Ordinance. Please note, however, that an appeal of this decision can
be made within 14 calendar days from the date of the mailing of this decision. If this happens, you
will be notified of a public hearing, which will be scheduled before the Planning Commission and
the trees cannot be removed until a final decision on the appeal has been made. If no appeal is made
within the appeal period, the tree(s) may be removed after Thursday, September 16, 2011 and if the
associated Director's Minor Modification approval (DIR-2011-1� is effective.
Sincerely,
�
Simon Vuong, Assistant Planner
408-777-1356, simonv@cupertino.org
CC: Paul Jay Reed, Reed Associates Landscape Architecture, 477 S. Taaffe Street, Sunnyvale,
California 94086
r
��� I�i%V��IATES /� �-a T i �?^�{ /!1, f / I` ��1 � / `.JC /
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July 5, 2011 � � - �
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Aki Honda Snelling, Senior Planner
_�m�, _ _ _ _ __ ..� _..._..�
City of Cupertino `�
c� `t„ "' iit i.! 3'@
\,: ! � 5 { 4
10300 Torre Ave. ��..._,. ._._ .... .... ......w
Cupertino, CA 95014
Re: Parking Lot Landscape work at: 10500 De Aiiza Blvd, 20400 Mariani Avenue, and
20605 Valley Green, Cupertino, CA
Aki,
Apple would like to resurface and repair 3�arking lots in Cupertino on older sites.
As part of the parking lot repairs, Apple would like to upgrade the parking lot landscape
areas. This landscape upgrade would need to be done Uefore the parking lot work because
some trees are lifting curbs and asphalt, soine are in poor condition and some are not
good choices for a parking lot condition.
The existing parking lots have conditions where existing trees are lifting aud breaking the
existing curbs and asphalt. We are concerned that if repairs are made now and the root
problem not corrected; that the damage will occur again. The existing site had inany
locations where the asphalt is a tripping hazard due to the lifting by tree roots. There are
also many locations where the curbs have been pushed so high that damage to cars is
possible.
Proposed Landscape Design Modifications
The parking lot repairs aud landscape work is intended to do the following:
1. Repair broken and raised curbs and broken and raised asphalt
2. Repair damage asphalt patches, slurry seal and restripe to same layout
3. Remove existing �roblem trees with root problems or health problems
4. Plant new parking lot trees to create a cohesive design and remove future problem
conditions (New trees will be a minimum of 36" box size).
5. Add a new irrigation system for the new planting that will ineet current landscape
requireinents in the City
6. Phase the tree improvements to lesseu the visual impact.
7. No parking lot counts will change; this is only a parking maintenance phase.
8. Larger treewells, than exist, are being added to assure the success and faster
grovvth of the new trees.
Reed Associates
Landscape Architecture
477 S. Taaffe St., Sunn�ti'ale CA 94086
408.4R ] .9020
far. 408.48 ] .9022
' � t
T�EID P,.S9�CIATL•S
9. Conform to Arborist Report (Dated March 15, 2011): a) Adding additional
recommended trees for removal and replacement; b) Keeping concrete pavers 10'
away from trees on 20605 Valley Green; c) Changing Arbutus trees to `Standard'
form; d) Retainiug trees #308 and 309 on 20605 Valley Green; e} extending
irrigation for trees #308 and 309; fl Adding a 36" box tree to replace tree #425 on
Mariani Ave.
10. City Landscape Ordinance: We are confonning to the City Landscape Ordinance
by using drought tolerant plants and replacing the existing spray irrigation with
drip irrigation. Tree bubblers have been added on a separate system. The Water
Use Calculations are shown on the irrigation plans. We are under the maximum
water use allowed.
DeAnza Project - Number of trees to be removed (171 total trees removed):
Fraxinus o. 'Raywood' = 64
Ceratonia silliqua = 84
Cinnamoinum camphora = 5
Eucalyptus sideroxylon = 4
Fraxinus uhdei = 1
Fraxinus v. 'Glabra' = 1
Pinus muricata = 2
Pinus radiata = 1
Mariani Ave - Number of trees to be removed ( 46 trees removed):
Eucalyptus sideroxylon = 34
Quercus agrifolia = 4
Celtis australis = 5
Celtis chinensis = 2
Valley Green - Number of trees to be removed (21 trees removed):
Prunus s. 'kwanzan' = 2 ��
Eucalyptus nicholii = 11
Pyrus kawakamii = 6 �
' Ligustrum lucidum = 1
Myrtus spp = 1
Reed Associates
Landscape Architecture
477 S. Taaffe St., Sunn}��ale, CA 940�6
403.�81.9020
far. 404.�51.9022
T(EF7D A.`s��-K :L3TE
Please let me know if you need any other information.
Thanks,
REED ASSOCIATES LANDSCAPE ARCHITECTURE CORPORATION
Califomia State License I�TO. 2002
Paul Jay Reed
Reed Associates
Landscape Architecture
477 S. Taaffe St._ Sunn}��ale, CA 94086
40�.48 ] .9020
fax 40&.487 9U22
ARBOR RESOLIRCES
pr c arborists and tree care
A REVIEW OF TREE REMOVALS PROPOSED FOR
LANDSCAPE AND PARKING LOT RENOVATIONS
AT THE FOLLOWING THREE APPLE INC. SITES:
20605 VALLEY GREEN DRIVE
20400 MARIANI AVENUE
10500 N. DE ANZA BOULEVARD
Submitted to:
Aki Honda Snelling
Community Development Department
City of Cupertino
10300 Torre Avenue
Cupertino, CA 95014
Prepared by:
David L. Babby
Registered Consultif�g Arborist #399
Board-CertifiedMasterArborist #WE-4001B
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March 15, 2011 `� � "
p.o. box 25295, san mateo, california 94402 ■ email: arborresources@comcast.net
phone: 650.654.335 I ■ fax: 650.240.0777 ■ licensed contractor #796763
David L. Babby, Registered Consulti�ag Arborist Marclz I5, 2011
TABLE OF CONTENTS
SECTION TITLE PAGE
1.0 INTRODUCTION ..............................................................................1
2.0 TREE REMOVAL COUNT AND COMPOSITION ............................ 2
2.1 20600 Valley Green Drive ................................................................ 2
2.2 20400 Mariani Avenue ..................................................................... 3
2.3 10500 N. De Anza Boulevard ........................................................... 4
3.0 SUITABILITY FOR TREE PRESERVATION ...................................... 7
4.0 REVIEW OF PROPOSED REMOVALS ............................................ 8
4.1 20600 Valley Green Drive ................................................................ 8
4.2 20400 Mariani Avenue ..................................................................... 9
4.3 10500 N. De Anza Boulevard ........................................................... 9
5.0 TREE REPLACEMENTS ....................................................................10
EXHIBITS
EXHIBIT TITLE
A PHOTOGRAPHS - 20605 Valley Green Drive
B PHOTOGRAPHS - 20400 Mariani Avenue
C PHOTOGRAPHS - 10500 N. De Anza Boulevard
i
David L. Babby, Registered Consulting Arborist March 1 S, 2011
1.0 INTRODUCTION
I have been retained by the City of Cupertino to review and prepare this report in
connection with tree removals proposed for landscape and parking lot renovations at the
following three Apple Inc. sites:
■ 20605 Valley Green Drive
■ 20400 Mariani Avenue
■ 10500 N. De Anza Boulevard
Specific tasks performed for my review are as follows:
■ Review three sets of proposed plans, one per site, prepared by Reed Associates
Landscape Architecture, dated 9/30/10.
■ Conduct site visits on 3/7/11 and 3/14/11 to observe and perform a cursory or
detailed evaluation of each tree proposed for removal.
■ Observe the parking lot and ground conditions surrounding each tree.
■ Rate each tree's suitability for preservation (e.g. high, moderate or low).
■ When observed on the subject sites, identify additional trees that should be
scheduled for removal due to having a weak and very poor structure.
■ Identify opportunities to improve existing trees immediately surrounding the
proposed renovation areas.
■ Provide measures to mitigate the removal of trees.
■ Review the size and amount of trees proposed for installation to initigate those to
be removed (pursuant to Table 3-1, Section 14.18.185 of the Code).
■ Offer comments or suggestions on new trees proposed for installation.
■ Utilize numbers (and trunk diameters) that are assigned to trees as shown on the
project plans and on round metal tags affixed (by other) to inost all tree trunks.
■ Obtain photographs; they can be viewed in Exhibits A, B and C.
■ Prepare a written report containing the aforementioned information; this report has
been submitted as a PDF document via email.
20605 Valley Green D�•ive, Z0400 Mariani Anenue, 10500 N. De Anza Boulevard Page 1 of ll
Ciry of Cupertino Cona»�u�zity Development Depa�•tment
David L. Babby, Registered Consultirzg Arborist R March 1 S, 2011
2.0 TREE REMOVAL COUNT AND COMPOSITION
Based on the sites, it is assumed that all trees presented herein were planted or retained as
part of a previously approved and planned development. As such, the trees can be
considered "protected trees" pursuant to Section 14.18.035(C) of the City Code.
2.1 20605 Valley Green Drive
Twenty-one (21) trees of five various species are proposed for removal from this site
(they represent 77-percent of the tota127 trees at the site). They are sequentially numbered
as 305-318 and 320-326, and the following table identifies their names, numbers, counts
and percentages:
% OF
NAME ' TREE NUMBER S COUNT TOTAL
flowering cherry 305, 306 2 10%
eucalyptus 307, 313, 318-326 11 52%
evergreen pear 308, 309, 314-317 6 29%
privet 310 1 5%
myrtle 312 1 5%
Total 21 100%
All of the trees are considered ornamental due to having been planted and not being native
to the area.
Photographs of each tree are presented in Exhibit A, and their locations and assigned
numbers are shown on Sheet L1.0 for this site.
20605 i�alley Green Drive, 20400 Mariani Avenue, 10500 N. De Anza Bouleva�•d Page 2 of ll
City of Cupe�•tino Conzmunity Developn7ent Department
David L. Babby, Registered Consulting Arborist Mm•ch 1 S, 2011
As illustrated in the table, the site is populated predominantly by eucalyptus trees situated
along the north and west perimeters. Overall, they have declining canopies and poor
structures, and many have caused substantial hardscape damage to the adjacent curbs and
parking lot.
2.2 20400 Mariani Avenue
Forty-five (45) trees of three various species are proposed for removal from this site (they
represent 35-percent of the total 125 trees at the site). They are sequentially numbered as
312-330 and 334-359, and the following table identifies their names, numbers, counts and
percentages:
% OF
Fl NAME '` TREE NUIIABER xS .` COUNT TOTAL
eucalyptus 312, 315, 317-326, 328-330, 34 76%
334-343, 347-351, 356-359
coast live oak 313, 314, 316, 327 4 9%
hackberry 344-346, 352-355 7 16%
Total 45 100%
All trees appear to have been planted. Four of them, coast live oaks, are considered native
to the area, but resemble shrubs as they are very short (four to six feet tall) and inulti-trunk.
All other trees can be regarded as omamentals and not native to the area.
Photographs of each tree are provided in Exhibit B, and their locations and assigned
numbers are presented on Sheets L1.0 and L1.1 for this site.
As illustrated in the table, the proposed removals consist predominantly of eucalyptus
trees, all of which have poor and weak structures due to having been severely reduced in
20605 Valley Green Drive, 20400 Alariani Avenue, 10500 N. De A�zza Boule��ard Page 3 of 11
City of Cu�ertino Conzmunity Develop»zent Depa��t»�ent
Davad L. Babby, Registered Consulting Arborist� March 1 S, 1011
height (or "topped"), and the current and future ensuing growth is highly prone to failure
throughout the trees' remaining lifespan. They are also causing extensive and substantial
hardscape damage to the adjacent curbs and parking lot.
The hackberrys, next most frequently occurring tree, are declining and in overall poor
condition. The four oaks can be considered small shrubs, and barely or not qualifying as a
tree yet.
An additional eucalyptus, tree #425 (22-inch trunk diameter), should also be scheduled
for removal (Sheet L1.0 indicates its retention). It has been "topped" and is prone to large
limb or branch failure; a photo is presented in Exhibit B.
Immediately surrounding the project area along Mariani Avenue, I observed three coast
redwoods that show symptoms of significant decline and stress due to what appear to be
from insufficient watering of the root zones; they include #308, 310 and 311. To help
improve their condition, I recommend irrigation (such as bubblers) is installed, but setback
about eight feet from the neighboring two coast live oaks (#307 and 309). Additional
recommendations regarding this are presented in Section 4.2 of this report.
2.3 10500 N. De Anza Boulevard
One-bundred sixty-two (162) trees of eight various species are proposed for removal
from this site (they represent 44-percent of the total 367 trees at the site). They are
sequentially numbered as 331-394, 455-476 and 501-576, and the table on the following
page identifies their naines, numbers, counts and percentages.
20605 Valley Green D�•ive, 20400 Mariani Avenue, 10500 N. De Anza Boulevard Page 4 of 11
City of Cupertino Co»amunity Developnzent Departn7ent
DavadL. Babby, Registered ConsultingArbo�•ist March I5, 2011
�`` � � .�; ; ' ,�:' , f.. �; % �OF ,
NAME Ti��E NUMBER S C'�UNT TOTAi,
333-341, 348-356, 363-371, 378-387, 458-
carob 463, 468-474, 505-510, 516-522, 528-534, 82 51 %
541-543, 545, 559-564, 566, 567
331, 332, 342-347, 357-362, 372-374,
Raywood ash 376, 377, 388-390, 455-457, 464-467, 66 41 %
476, 501-503, 511-513, 523-527, 535-540,
549-558, 568-573, 576
camphor 375, 504, 515, 544, 565 5 3%
eucalyptus 391-394 4 2%
shore pine 546, 547 2 1%
shamel ash 475 1 1%
Monterey pine 548 1 1%
Modesto ash 514 1 1%
Total 162 100%
All of the trees are considered ornamental due to having been planted and not being native
to the area.
Photographs of each tree are provided in Exhibit C, and their locations and assigned
numbers are presented on Sheets L1.0 and L1.1 for this site.
As illustrated in the table, the proposed removals consist predominantly by carob and
Raywood ash trees. The carobs have caused extensive damage to the surrounding planters
and parking lot, and many have serious structural defects and are declining (in numerous
instances, they are either dead or nearly dead). The Raywood ash are relatively young, and
inany have substantial dieback and/or structural defects.
20605 Valley Green Drive, 20400 Mariai�i Avenue, 10500 N. De Arzza Boulevard Page S of 11
Cit�� of Cupertino Co�nmu��ity Developme»t Depm�tme��t
David L. Babby, Registered Consultirag Arborist March 1 S, 2011
I observed the following additional nine trees that immediately surround the proposed
project area and should be scheduled for removal due to the high to severe risk they present
to persons and property below (photographs are provided in Exhibit C):
a. Tree #453: This is an Italian alder (18-inch tnu�lc diameter) situated at the
building's southwest corner. It leans (less but near 45-degrees) significantly away
from the building throughout most of its entire length (in an effort to capture
sunlight), then grows vertically for a short section at the top. It also has a
pronounced, large root mass that has surfaced opposite the lean, likely in response
to support the tree's significant lean, but also potentially from the tree having
partially uprooted in the past. I also observed indication of the tree being infested
with alder borer, an insect that can weaken the tree and promote its decline and
demise.
b. Tree #577: This is another eucalyptus (19-inch trunk diameter) that has been
"topped" along with those at the Mariani site. Consequently, it is prone to large
limb or branch failure.
c. Tree #578: This is another Italian alder (11-inch trunk diameter) with a substantial
but somewhat less lean than #453. However its entire length or plane leans (away
from the parking lot), and there are large root mass that has surfaced opposite the
lean, seemingly due to the tree having partially uprooted in the past.
d. Trees #602, 607, 609 and 610: These are coast redwoods of varying sizes that are
dead or nearly dead (their respective trunk diameters are 12, 1 l, 16 and 5 inches).
e. Tree #604: This is a small Raywood ash (eight-inch trunk diameter) with dieback
and is growing beneath and into the dominant, healthier tree #605.
f. Tree #630: This is another small ash (tlu trunk diameter) with over half of
its canopy dead.
20605 Valley Green Drrve, 20400 Marim7i Avenue, 10500 N. De Anza Boulevard Page 6 of 11
Cit�� of Cupertino Community Development Department
David L. Babby, Registered Consulting A� Marcl� 1 S, 2011
3.0 SUITABILITY FOR TREE PRESERVATION
Each tree has been assigned a"high," "moderate" or "low" suitability for preservation
rating as a method for cumulatively measuring and considering their physiological health,
structural integrity, location, size and species. A description of these ratings followed by
the assigned tree numbers, per site, is as follows:
Hi�h: They have a high potential of providing long-term contribution the site, appear in
good health, and contain seemingly stable structures.
■ This rating is assigned to no trees at any of the three sites.
Moderate: They contribute to the site but not at seemingly significant levels. Their
longevity and contribution is less than those of high suitability, and more frequent care is
needed during their remaining life span.
■ 20605 Valley Green Drive (eight trees): #306, 308-310, 312 and 315-317.
■ 20400 Mariani Avenue (seven trees): #313, 314, 316, 327, 352, 354 and 355.
■ 10500 N. De Anza Boulevard (45 trees): #331, 332, 334, 335, 346, 351, 354, 360,
362, 380, 389, 390, 392, 393, 455, 457, 459, 464, 467, 473, 475, 501-505, 512-515,
537, 539, 540, 545, 549-552, 555, 560, 563, 568, 570, 572 and 575.
Low: These trees are predisposed to irreparable health problems and/or structural defects
that are expected to worsen regardless of ineasures employed.
■ 20605 Valley Green Drive (13 trees): #305, 307, 311, 313, 314, 318 and 320-326.
■ 20400 Mariani Avenue (38 trees): #312, 315, 317-326, 328-330, 334-351, 353 and
356-359. .
■ 10500 N. De Anza Boulevard (117 trees): #333, 336-345, 347-350, 352, 353, 355-
359, 361, 363-379, 381-388, 391, 394, 456, 458, 460-463, 465, 466, 468-472, 474,
476, 506-511, 516-536, 538, 541-544, 546-548, 553, 554, 556-559, 561, 562, 564-
567, 569, 571, 573, 574 and 576.
20605 Valley Green Dri>>e, 10400 Mariani Avenue, 10500 N. De Anza Boulevard Page 7 of I1
Ciry of CUpe��tino Community Dei�elopnaent Departnzent
David L. Babby, Registered Consulti�sg Ar�borist� Marcla 1 S, 2011
4.0 REVIEW OF PROPOSED REMOVALS
4.1 20605 Valley Green Drive
The design proposes removing 21 trees and installing 37 new trees of 36-inch box size.
Based on the overall low quality of the existing tree landscape, and current and imminent
future damage of hardscape, it is my opinion that removal of 19 trees and proposed
installation amounts and sizes will provide a much improved and superior tree landscape,
and is a reasonable and prudent management approach that conforms to Section 14.18.180
of the Town Code. It is also my opinion that mitigation should include incorporating the
following recommendations into the design:
a. Trees #308 and 309 should be retained versus removed. Although these trees are
not in ideal condition and have been overpruned in the past, they are established,
appear viable and stable, and there appears to be no substantial benefit by their
removal (they would be removed for the purpose of installing a new tree in their
location). In doing so, two less 36-inch box replacements would be installed, and the
concrete pavers proposed at the tree's location would be omitted and substituted with
mulch.
b. The proposed concrete pavers along the west boundary could inhibit lateral root
growth within the continuous planter strip. If installed, I suggest an engineered
structural soil inix named CU-Structural Soil, is used for the base material (within
ten feet from the trunk) to allow compaction while enabling root growth and
extending the tree's life expectancy and that of surrounding hardscape. Another
option is for the pavers to be established at least ten feet from the trees' trunlcs.
c. The proposed Arbutus `Marina' should be a standard form versus multi-trunlc (as
with any proposed trees).
1 Refer to iv��nv.a»�e��eq.conz/pages/2/index.lat�n for additional information.
20605 Valley Green Drive, 20400 Mariani Avenue, 10500 N. De Anza Boulevard Page 8 of 11
Ciry of Cupertino Community DeveJopment Depar-tme�at
Dm�id L. Babby, Registered Co�zsulti�zg A�•borist R March 1 S, 2011
4.2 20400 Mariani Avenue
The current design proposes removing 45 trees and installing 46 new trees of 36-inch box
size. I recommend tree #425 is added to the removal count, thus making the total 46
removals.
Based on what I would consider a very poor and potentially unsafe tree landscape,
combined with the significant current and imminent future damage of hardscape
surrounding the trees, it is my opinion that removal of the 46 trees will enable a much
safer, improved and superior tree landscape. It is also my opinion that removal coinbined
with the proposed replacement amounts and sizes and is a reasonable and prudent
management approach, conforms to Section 14.18.180 of the Town Code, and should
incorporate the following recommendations into the design:
a. Extend irrigation layout to include redwoods #308, 310 and 311. I suggest
bubblers are utilized and setback by about eight feet from the neighboring two coast
live oaks (#307 and 309), the lines routed in a radial direction to the trees' trunlcs and
terminate five or more feet away, the trenches are relatively shallow and manually
dug where beneath the trees' canopies, and water is supplied every two weeks at rates
and amounts that provide deep-soaking 24 to 36 inches deep.
b. The proposed A��butus `Marina' should be a standard form versus multi-trunk (as
with any proposed trees).
c. A 36-inch box tree to replace #425 should also be added to the planting design.
4.3 10500 N. De Anza Boulevard
The current design proposes removing 162 trees and installing 116 new trees of 36-inch
box size. I recotrunend the additional nine presented in Section 2.3 of this report are added
to the removal count, thus making the tota1171 removals.
20605 Ya11ey Gree�z Drive, 20400 Maria�7i Avenue, 10500 N. De A�zza Boulevard Page 9 of 11
City of Cupertino Co»imunity Developnzent Departnzent
David L. Babby, Registe��ed Consulting Ai•borist� March 1 S, 2011
Based on tree species, their overall condition, and/or the significant current and imminent
future damage of hardscape surrounding the trees, it is my opinion that removal of the 171
trees will enable a much safer, improved and superior tree landscape. It is also my opinion
that the proposed removals combined with the amount and size of replacements is a
reasonable and prudent management approach, conforms to Section 14.18.180 of the Town
Code, and should incorporate the following recommendations into the design:
a. The planter containing the meter in the front parking lot (east side near the
building) should contain landscaping and new trees (contains trees #391-394).
b. Trees to replace the nine additional trees I recommend for removal should be
added to the planting design (24-inch box size would seemingly be appropriate).
c. There appears to be adequate space to install coast live oaks within the three larger
planter islands aligning the rear, southern perimeter (but inside) of the parking lot.
I suggest that they be considered, and drought-tolerant landscaping beneath their
canopies is considered.
d. The proposed Arbutus `Marina' should be a standard form versus multi-trunk (as
with any proposed trees).
5.0 TREE REPLACEMENTS
Based on the proposed root ball sizes and amouut of new trees, I recommend they are
selected and tagged at the nursery by an ISA certified arborist and/or landscape architect
prior to being shipped to the site. Those installed should have relatively symmetrical
structures mostly free of obvious defects, wounds and girdling roots. Additionally, the
arborist andlor landscape architect should be retained to examine and root prune, as
needed, once the boxes are removed and before lowering into the planting hole.
20605 Yalley G�•een Drive, 20400 Ma��im�i Avenue, 10500 N. De Ar7za Boulevm•d Page 10 of 11
City of Cu�erti�7o Conzmu�zit�� Development Depm�tme��t
David L. Babby, Registered Consulting Arborist March I5, 2011
All new trees should be installed, including necessary irrigation, by an experienced state-
licensed landscape contractor or a professional tree company, and performed to
professional industry standards. To include within Detail 6 on Sheet L4.0, support stakes
should be cut below the first main lateral branch; where this is not feasible (e.g. a low-
branching tree), they should be established in a manner that avoids damaging the trunlc and
lateral branches.
Prepared By: Date: March 15, 2011
David L. Babby
Registered Co�zsulting A�•borist #399
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Board-Certified MasterArbo�°ist #WE-4001B �� f � `
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20605 Valley Gree�z Drine, 20400 Mariani Avenue, 10500 N. De Anza Boule>>ard Page 11 of 11
Ciry of Cu�ertino Community Development Departnae�at
David L. Babby, Registered Consulting A�•borist Marclz 1 S, 2011
EXHIBIT A:
PHOTOGRAPHS
20605 Valley Green Drive
Photo Index
Page A-1: Trees #305 thru 309
Page A-2: Trees #310 thru 317
Page A-3: Trees #318, 320 thru 324
Page A-4: Trees #325 and 326
20605 Valley Green Drive, Cupertino
City of Cupertir7o Conununity Developn�e�7t Depart»�ent
David L. Babby, Register�ed Consulting Ar�ba•ist�
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10605 Valley Green Drive, Ciipertino
City of Cupertino Conunurziry Development Departrnenl
March 1 S, 2011
Page A-1
Duvid L. Babby, Registered Consirlting Arborist �
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10605 Valley Green Drive, Cupertino Page A-2
City of Cupertino Co��znzu�zity Develop���ent Depar-tment
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David L. Babby, Regisle��ed Cojzsulting Ar
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City of Cupe� Commasniry Development Department
Murch 1 S, 2011
Page A-3
David L. Babby, Regrste�•cd Co��sulting Ar I)Ul"ISC 't
20605 valley Greetz Dr�ive, Caspe��tino
City of Cuper-tino Community Devclopment Depa�
Maj 1 S, 2011 �
Page A-4
Davad L. Babby Registered Co��sulting A1 March 1 S, 2011
EXHIBIT B:
PHOTOGRAPHS
20400 Mariani Avenue
Photo Index
Page 6-1: Trees #302 thru 325
Page B-2: Trees #326 thru 330, 334 thru 341
Page B-3: Trees #342 thru 350
Page B-4: Trees #351 thru 359
Page B-5: Trees #307 thru 311, 425
20400 Ma� Ave��ue, Cupertif�o
City of Cu��e� Conimu��ity Development Departme�lt
David L. Bubby, Re�i.stered Consatltii�g Ar-borist�
20400 Mariani Avenue CZlJ7eY11110
City of Cupertino Carnmunity Developme�7t Departmeizt
March 1 S, 2011
Page B-1
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David L. Babby, Registered Consulling Arbo�•ist�
20400 Mar�iani Avenue, Cuperti�io
City of Cuperti�7o Con7inuniry Development Depa�
Marclz 1 S, 2011
Page B-3
ii
David L. Babhy, Registe�•ed Cor�sulti»g Arbor•ist
20400 Mariani Ave�zue, Cupei�tino
City orCupe��ti��o Commu��ity Developrnent DeJ�artment
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Ma� 1 S, 2U11
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Page B-4
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David L. Babby, Registercd Constrlting Arborist y
20400 Mariani Ave�zue Cuperlino
Ciry of Carper Com��zzrnity Devclopment Depa�-tnle�zt
Ma�•cl� 1 S, 2011
Page B-S
David L. Babby Registered Consulti��g Arborist�' Marc1� 1 S, 2011
EXHIBIT C:
PHOTOGRAPHS
10500 N. De Anza Boulevard
Photo Index
Page C-1: Trees #331 thru 341 Page C-11: Trees #511 thru 521
Page C-2: Trees #342 thru 353 Page C-12: Trees #522 thru 532
Page C-3: Trees #354 thru 367 Page C-13: Trees #533 thru 543
Page C-4: Trees #368 thru 377 Page C-14: Trees #544 thru 559
Page C-5: Trees #378 thru 384 Page C-15: Trees #560 thru 567
Page C-6: Trees #385 thru 394 Page C-16: Trees #568 thru 576
Page C-7: Trees #455 thru 463 Page C-17: Trees #453, 577, 578, 630
Page C-8: Trees #464 thru 471 Page C-18: Trees #602, 604, 607, 609, 610
Page C-9: Trees #472 thru 476, 501 thru 503
Page C-10: Trees #504 thru 510
10500 N. De Anza Bouleva� Cupe�
Cin� of Cuperti��o Co�n»�unity Development Departnae�7t
Duvrd L. Bubby, Regrstered Consultrng Arborist��
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10500 N. De Anza Boulevard, Cupe�•tino
City of Cz�pc��trrzo Commzrni/y Developnzertt Departmer�t.
March 1 S, 2011
Page G 1
David L. Babby, Registered Consulting Af
10500 N. De Anza Boulevard, Cuper•ti�zo
City of Cupertino Community Developme�zt Depar•lment
Murch 1 S, 1011
Page G2
Davicl L. 13ubby, Re�Iiste� Cof� .SUlllilg A�
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10500 N. De Anza Bouleva��d, Cupe��tino
City of Czr�ei Co��zmuiziry Developnzent Departnze�zt
Mai 1 S, 2011
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David L. Babby, Registered Consarlting Arborist�
10500 N. De Anza Boulevard, Cupertino
City of Cupertino Community Developnze�zt Department
Marclz 1 S, 2011
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Ciry of Cupertino Cornmunity Developnzent Depa�
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City of Cuper Communi .ry Development Department
March 1 S, 2011
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