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General ConstructionChatsworth - Porter RanchPermit issued

Retail Space Conversion at 10220 N Mason Ave, Chatsworth - Porter Ranch

10220 N MASON AVE, Chatsworth - Porter Ranch, 91311

Winston

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Reported project cost

$147,000

As declared on the permit filing. Bldg-Alter/Repair.

Issued
May 20, 2026
Expires
—
License
B

What was permitted

Businesses and property owners in the Chatsworth - Porter Ranch neighborhood should note this permit for a change of use to a retail space.

This project, issued on May 20, 2026, involves demo work, combining five existing tenant spaces, installing a new floor slab, and adding structural supports for rooftop equipment and a new restroom, with an estimated cost of $147,000. The contractor is listed as 'Unknown (Commercial)'.

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View the official permit record

Tracking number, work description, cost and dates

Tracking number25016-20000-11083
Work permit #—
Job filing number—
Work typeBldg-Alter/Repair
StatusIssued
Job description**ePlan**Change of use to Retail Space and combining 5 existing tenant spaces into one space. Demo existing demising walls & ceiling. Install new floor slab to level space and new structural supports for rooftop equipment and new restroom.
Floor / unit—
Estimated cost$147,000
ApprovedApril 9, 2025
IssuedMay 20, 2026
Expires—
BBL—
BIN—

Related searches

Retail SpaceChatsworth - Porter RanchLos AngelesCommercial constructionChange of Use$147,000