What was permitted
This project involves replacing 16 existing windows in a single-family dwelling located at 647 21st Avenue in the Outer Richmond neighborhood. The new vinyl windows will be the same size and in the same location as the originals, with no structural changes planned.
Additionally, approximately 45 square feet of siding at the rear of the property will be replaced in kind due to dry rot. This permit was issued on July 13, 2026, with an estimated project cost of $27,000, and K A Lau Construction is the contractor.
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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 | 202607134895 |
|---|---|
| Work permit # | — |
| Job filing number | — |
| Work type | Alterations · 1 Family Dwelling |
| Status | issued |
| Job description | replace 16 windows in kind in the yard (not facing the street) with vinyl windows - same size, same location, same opening, same operation, no structural work. maintain eero per cbc 1031 as required. replace 45 sq ft of siding at the rear in kind due to dryrot - no replacement of wall studs, no str |
| Floor / unit | — |
| Estimated cost | $27,000 |
| Approved | July 13, 2026 |
| Issued | July 13, 2026 |
| Expires | — |
| BBL | — |
| BIN | — |
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