Andora Avenue TTM Project

Subsequent Draft Environmental Impact Report

EIR Case File No. ENV-1986-0062-EIR-SUB
SCH No: 86052110

Prepared for:

Los Angeles Department of City Planning
200 N. Spring Street, Room 750
Los Angeles, California 90012

Prepared by:

Impact Sciences
234 East Colorado Boulevard, Suite 205
Pasadena, California 91101

PROJECT ADDRESS: 9503 Andora Avenue, Los Angeles, California 91311

COMMUNITY PLAN AREA: Chatsworth – Porter Ranch Community Plan Area


COMMENT DUE DATE: April 5, 2010


The project is a request to change the zone on the property from A1-1 and A2-1 to RE40-1-H-K and to subdivide the property under Tentative Tract Map No. 53426 into 48 lots for 45 single-family and three open space lots. No change is proposed to the General Plan land use designation, which is currently Minimum residential density, corresponding to the OS, A1, A2, and RE40 zones, and Very Low residential density, corresponding to the RE20 and RA zones. The average residential size lot would be 45,428 sf, which exceeds the 40,000-sf minimum lot size of the RE40 zone. Minimum net lot size will be 32,000 sf. Additional actions required by the City may also include Grading permit; Building permits; Permit for removal/relocation of Santa Susana tarweed; and Permit for NPDES storm water discharge, etc.

Of the approximately 91 acres on the site, approximately 38 acres would be preserved as permanent, common open space. The remainder of the property would be developed into an equestrian-oriented gated community along four private streets. The community’s main access road would be Rogers Way, approximately 50 feet in width and originating at the current terminus of Andora Avenue. The existing terminus of Andora Avenue would be completed as a 60-foot-wide public right-of-way and standard cul-de-sac. Beyond the public cul-de-sac, the roadway would become private Rogers Way and traverse the site, westerly, curve northerly, and terminate at the property line between the subject property and the privately held property to the north, with no connection to property to the west in Ventura County. Additional private streets, “A,” “B,” and “C” Courts, would provide access to proposed lots not fronting on Rogers Way.

The project would be developed as a gated, equestrian-oriented community. Residential lots would have a pad size varying from approximately 11,000 to 30,000 sf, which exceeds the minimum pad area of 9,000 sf for equestrian communities. The proposed homes would generally consist of four or more bedrooms and be one and two stories in height. Maximum building height would not exceed 25 feet for one-story structures and 35 feet for two-story structures.

Open space lot No. 46 would house a private equestrian center, accessible to residents by vehicle via a driveway easement. A 12-foot-wide public equestrian trail would be dedicated and improved from Andora Avenue to the northerly property line of proposed lot No. 37 to the Ventura/Los Angeles County line.

The project is designed to retain the property’s natural features to the extent feasible. Landform and contour grading techniques will be employed to minimize the amount of grading. Development of the project would require grading of 600,000 cubic yards of dirt, which will be balanced on site and would also preserve many of the natural rock outcroppings.


Aesthetics and Visual Resources, Biological Resources, Air Quality, Cultural Resources, Geology, Water Resources, Land Use, Noise, Public Services (Police, Fire, and Public Schools), Transportation, and Public Utilities (Water and Wastewater).


If you wish to review a copy of the Draft Environmental Impact Report (Draft EIR) or the documents referenced in the Draft EIR, you may do so at the City of Los Angeles, City Hall, Room 750, Department of City Planning , 200 North Spring Street, Los Angeles, 90012. Copies of the Draft EIR are also available at the following library locations:

1) Chatsworth Branch Library:  21052 Devonshire StreetChatsworthCA 91311
2) Porter Ranch Library: 11371 Tampa Avenue, Porter RanchCA 91326
3) Los Angeles Central Library: 630 W. 5th Street, Los Angeles, CA 90071

The Draft EIR is also available online at the Department of City Planning’s website [ (Click “Environmental,” and then “Draft Environmental Impact Reports”)]. The Draft EIR can be purchased on CD-Rom for $7.50. Contact Jimmy Liao at 213-978- 1331, or David Somers at 213-978-1355 to purchase one.

If you wish to submit comments following review of the Draft EIR, please reference the environmental case number (ENV-1986-0062-EIR), and submit them in writing by April 5, 2010, Please direct your responses to:

Jimmy C. Liao, City Planner, or
David Somers, Planning Assistant
Environmental Review Section
Department of City Planning
200 N. Spring Street, Room 750
Los Angeles, CA 90012
(2 13) 978-1343 (fax) (e-mail), or (e-mail)

Please select from the menu below to view each section of the Draft EIR in PDF format.

For Draft EIR Volume I Sections:

For Draft EIR Appendices Volume II Sections:

Impact Sciences
234 East Colorado Boulevard, Suite 205
Pasadena, California 91101