What was permitted
Residents in Granada Hills - Knollwood can review a permit for a significant window and door replacement project at 16935 W Blackhawk St. This project involves changing out 29 windows and 6 doors of the same size and type.
Issued on August 10, 2026, the estimated cost for this work on an apartment building is $40,167. The permit specifies that dual glazing, certified by the NFRC, is required for all replaced doors and windows in residential buildings three stories or less.
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View the official permit record
Tracking number, work description, cost and dates
View the official permit record
Tracking number, work description, cost and dates
| Tracking number | 26016-10000-21006 |
|---|---|
| Work permit # | — |
| Job filing number | — |
| Work type | Bldg-Alter/Repair |
| Status | Issued |
| Job description | 29- Window and 6- door change-out (same size & type) for residential buildings. Dual glazing, labeled and certified byNational Fenestration Rating Council (NFRC), is required for doors and windows replaced in all residentialbuildings, three stories or less, per Section 150.2(b) 1B of Title 24. |
| Floor / unit | — |
| Estimated cost | $40,167 |
| Approved | — |
| Issued | August 10, 2026 |
| Expires | — |
| BBL | — |
| BIN | — |
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