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Ways To Meet Tree Requirement
AGA T]CEM t;OV~RSI3EET'
i
October 29,1990
°~
~~ MEMORANDUM
,;
TO: Plannin & Zonin Commission
g g
'i FROM: Jane R. Kee,. Senior Planner
;~
FEE: ~ Landscape Ordinance Amendment....
;;
~~! As you recall the staff presented an ordinance amendment to you earlier. this year that would
have provided a variance procedure for schools. relative to landscape requirements, This was
presented m response to a request on the part of CSISD. The P&Z recommended denial of this
amendment and the City.:: Council voted to deny it. The Council did .give direction to the staff to
'~ review the ex~itng landscape ordinance and see if where were areas where improvements might
~ be made.
~I~
'' Staff has done so and presents this amendment for your consideration. Basically the amendment
does 'the. following:
Relative to E~stin~ Ticees:
~i 1. Fewer points:. are given for un rotected existing trees.
2. Points are .now given for protecting smaller (2" to 4.5") existing trees.
~~
~,; 3. The points given to barricade and save existing trees is increased for all caliper sizes.
Relative to New Canopy Trees:
4. 100% more points are. given when lam (minimum 3.5" caliper) new canopy .trees- are
planted. This recongnizes more closely the :cast differential between the smaller. and
larger caliper trees while still. yielding an appropriate number of trees. to improve
community appearance.. Generally a 3.1/2" caaper -tree will cost about 3 times. the 1 1/2"
caliper tree.
Relative to watering
5. Point credit in the amount of 20%a of the total requirement is given when an ,irrigation
system is installed. This -credit is given because an irrigation system greatly. improves tree
• :enforcement efforts.
survival and thus reduces costs assaclated with
Relytzve to Farking Lot Islands:
6. Staff proposes to allow some islands to consist of decorative pavers rather than living
plant .materials to help decrease undermining parking lot pavement that might occur from
watering.
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AGENDA. ITEM COV~tSH~ET
_ CURRENT .ORDINANCE CURRENT ORDINANCE
Small Trees - 3 Large Trees - 2~
(7S pts. per :tree) (100 pts. per tree)
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A.LTERNATI[VE # 1 AZTERNATIVE # 2
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Large Trees -1 - barge Trees -1
(200 pts. per tree) {300 pts. per tree)
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CURRENT ORDINANCE. 9
CURRENT ORDINANCE
Small Trees - 58 Large Trees - 44
(75 pts per tree) (1Q0 pts. per ree)
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ALTERNATNE # .1 ALTERNATIVE # 2
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Trees - 22 Lar e Trees -15
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