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ADDENDUM TO ENVIRONMENTAL IMPACT REPORT
FOR SECOND AMENDMENT TO VESTING TENTATIVE TRACT MAP NO. 060922 AND
CONDITIONAL USE PERMIT MODIFICATION NO. RPPL2017009424
PROJECT NO. 04-075

1. Existing Entitlements

a. On December 7, 2010, the Board of Supervisors approved Vesting Tentative Tract Map
(“VTTM”) No. 060922, Highway Realignment (“HWY”) No. 200900001, General Plan
Amendment (“PA”) No. 04-075, Conditional Use Permits (“CUPs”) 04-075 and 200900121
and Oak Tree Permit (“OTP”) No. 200700021, certified the final Environmental Impact Report
(“EIR”) and adopted the Findings and Statement of Overriding Considerations (“Findings and
SOC”) and incorporated the Mitigation Monitoring and Reporting Program (“MMRP”) into the
conditions of approval. The subject property is located west of Sierra Highway, south of Vasquez
Canyon Road, and north of the City of Santa Clarita in the Sand Canyon Zoned District.

b. The approved VTTM and CUPs authorized creation of clustered hillside residential
development of 1,260 single-family residence lots, 25 open space lots, 10 park lots, four water
pump station lots and 13 public facility lots on 2,173.25 gross acres.

c. The HWY and PA authorize the realignment of Whites Canyon Road through the project site
from approximately 1,400 feet east of Whites Canyon Road/Plum Canyon Road to Sierra
Highway and renaming the realigned portion Skyline Ranch Road, and authorizes the
amendment to the Master Plan of Highways within the Los Angeles Countywide General Plan
to effectuate the HWY.

d. The original OTP authorizes the proposed removal of one oak tree.

e. Mitigation measures identified in the approved EIR and MMRP, and imposed on the project as
a condition of approval, include the following categories: visual quality, noise, air quality, law
enforcement services, cumulative traffic, solid waste disposal, and cumulative global climate
change.

f. On December 20, 2016, a County of Los Angeles Hearing Officer approved authorization for
adjustments to the configuration of lots, substitution of 384 single-family residence lots with four
multi-family residence lots developed with 344 detached, single-family residence condominium
units, relocation of the public school, public park and private recreation and park lots, alterations
to private drives and fire lanes, street locations and realignment of Skyline Ranch Road
(Realignment No. 2016004512), and elimination of a proposed pedestrian bridge.

2. Proposed Entitlement Modifications

The proposed project changes require the following amendments to, or additional entitlements: A
Second Amendment to VTTM No. 060922, CUP Modification No. RPPL2017009424, and an
Addendum to the certified final EIR.

3. Proposed Amendment to Vesting Tentative Tract Map No. 060922

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