Window Replacement at 275 1/2 S UNION AVE, Westlake
275 1/2 S UNION AVE, Westlake, 90026
What was permitted
Homeowners in the Westlake area researching window replacement costs can look at this permit for 275 1/2 S UNION AVE. This project involves changing out four existing windows with new dual-glazed units that meet Title 24 energy efficiency standards.
Issued on July 9, 2026, the estimated project cost for this four-window replacement is $501. The new windows are required to be NFRC-labeled and certified, ensuring energy performance.
Westlake residents considering window upgrades can see this $501 permit for four NFRC-certified dual-glazed window replacements at 275 1/2 S UNION AVE.
What it cost
Issued
July 9, 2026
Expires
—
License
B
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Filed by Ats Construction Inc · 5 permits across 3 areas
View the official permit record
Tracking number, work description, cost, and dates
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View the official permit record
Tracking number, work description, cost, and dates
| Tracking Number | 26016-10000-18092 |
| Work Permit # | — |
| Job Filing Number | — |
| Work Type | Bldg-Alter/Repair |
| Status | Issued |
| Job Description | 4 Window change-out (same size & type) for residential buildings. Dual glazing, labeled and certified by National Fenestration Rating Council (NFRC), is required for doors and windows replaced in all residential buildings, three stories or less, per Section 150(b) 1B of Title 24. |
| Floor / Unit | — |
| Estimated Cost | $501 |
| Approved | — |
| Issued | July 9, 2026 |
| Expires | — |
| BBL | — |
| BIN | — |