InsulationGranada Hills - KnollwoodPermit Issued

Attic Insulation Installation at 15851 W Lassen St, Granada Hills

15851 W LASSEN ST, Granada Hills - Knollwood, 91343

Estimated Project Cost

$0

Bldg-Alter/Repair

Issued

May 18, 2026

Expires

License

B

About This Project

Homeowners in Granada Hills - Knollwood can explore the costs associated with attic insulation projects. This permit covers the installation of radiant barrier and/or insulation in the attic of a residential building.

This building alteration permit was issued on May 18, 2026, with an estimated project cost of $3,000. The contractor information is not specified for this 1 or 2 family dwelling project.

What This Means For You

A homeowner in Granada Hills - Knollwood can expect an estimated project cost of $3,000 for attic insulation installation.

The Business That Did This Work

First Stop Construction Inc

B · License #1014721

3 permits filed · 2 areas

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Permit Details

Tracking Number26016-10000-13141
Work Permit #
Job Filing Number
Work TypeBldg-Alter/Repair
StatusIssued
Job DescriptionInstall radiant barrier and/or insulation in attic for residential buildings. "COMPLY WITH DEPARTMENT ORDER effective date 12/15/2023. PERMIT WILL EXPIRE 30 DAYS FROM ISSUANCE DATE".
Floor / Unit
Estimated Cost$3,000
Approved
IssuedMay 18, 2026
Expires
BBL
BIN

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insulationradiant barrierGranada Hills - KnollwoodLos Angelesbuilding alterationresidential$3,000

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