HomeMy WebLinkAbout1461 Alvarado Avenue - Staff Report (2)City of Burlingame
Design Review ai:d Hi[lside Area Constructio�z Permit
ite�„ # I 1
Design Review Study
Address: 1461 Alvarado Avenue Meeting Date: 09/25/06
Request: Design review and hillside area construction permit for a first floor addition with a 10'-0"
plate height (C.S. 25.57.010, a,2).
Applicant and Designer: Jack McCarthy
Property Owner: George Scarborough
General Plan: Low Density Residential
APN: 027-103-030
Lot Area: 11,496 SF
Zoning: R-1
Summary: The existing house is two stories with a lower level half story and was built in 1935. The
owners applied for and were granted a Hillside Area Construction Permit in 2005 to add a sunroom
with a 9'-0" plate height at the rear of the first floor. Since that approval, the owners have decided to
revise the project so that the sunroom has a 10'-0" plate height to match the plate height in the
adjoining living room.
The applicant is proposing to build a 360 SF sunroom on the first floor at the rear, left side of the
house. The proposed addition will have a 10'-0" plate height where any plate height greater than 9'-0"
requires design review. The first floor of the existing house has a plate height of 9'-0" throughout,
except for the living room which has a 10"-0" plate height.
With tlle proposed addition, the floor area on site will increase from 3,632 SF (0.32 FAR) to 3,992 SF
(0.35 FAR) where 4,779 SF (0.42 FAR) is the maximum allowed. There are 4 existing bedrooms and
this number will not be inereased with the proposed addition. The existing attaclieci garage in the
lower level half story provides two non-conforming covered parking spaces (18'-10" in length where
20' is required) where there one covered parking space is required for a 4-bedroom house. All other
zoning code requirements have been met.
The applicant is requesting the following:
• Design Review for an addition with a plate height higher than 9'-0" (C.S. 25.57.010, a,2); and
� Hillside area construction permit for a single-story addition (CS 25.62.020).
1461 Alvarado Avenue
Lot Area: 11,496 SF
SETBACKS
Fro�zt (Ist flr):
(2izd flr):
Existing
22'-8"
42'-8"
Proposed
__._..__.. .._...._._..___ . _ _
No change
No change
Allowed/Required
15'-0"
20'-0"
Desigi�z Review an�l HACP
1461 Alvarado Avenue (cont'd)
Lot Area: 11,496 SF
Side (left):
(right):
Rear (Ist flr):
(2iid flr):
Lot Coveruge:
_ _ ___
FAR:
Existing
5'-3" 2
3'-5" 2
104'-0"
109'-0"
_ _ _ _._
2,036 SF
18%
3,632 SF
0.32 FAR
1461 Alvarado Avenue
Proposed ; Allowed/Required
7'-6" to addition 6'-0"
No change 6'-0"
_........ _... __ .. _
' 110'-6" to addition 15'-0"
No change 20'-0"
: _ __ _ __ ._ _ _ __ ___
2,396 SF ' 4,598 SF �
21% 40%
_. _ . � __ __ _
3,992 SF 4,779 SF
0.35 FAR 0.42 FAR
_ _ __ _ _ __ _ _ ____ ___ __ __ __ __ __.
# of bedroon:s: 4 No change ' ---
Parking: 2 covered '` 1 covered
(18'-10" x 18'-10") No change (10' x 20')
1 uncovered 1 uncovered
(9' x 20') (9' x 20')
' (0.32 x 11,496 SF) + 1,100 SF = 4,779 SF (0.42 FAR)
2 Existing, non-conforming conditions that will not be altered with the proposed single-story
addition.
Staff Comments: See attached.
Erika Lewit
Planner
c: Jack McCarthy, Designer
2