What was permitted
A substantial building permit has been issued for an addition and rebuild of a single-family home at 1609 Knollwood Av in the Willow Glen neighborhood of San Jose. This project involves extensive work across building, electrical, plumbing, and mechanical systems.
The permit, issued on August 21, 2026, is active and carries an estimated project cost of $582,456. BROTHER & BROTHER BUILDERS is the contractor undertaking this significant renovation.
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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 | 2026-114365-RS |
|---|---|
| Work permit # | — |
| Job filing number | — |
| Work type | Additions/Alterations · Single-Family |
| Status | Active |
| Job description | Building, Electrical, Plumbing, Mechanical work: ADDITION & REBUILD |
| Floor / unit | — |
| Estimated cost | $582,456 |
| Approved | — |
| Issued | August 21, 2026 |
| Expires | — |
| BBL | — |
| BIN | — |
Property owner
Hsu Po Shan And Shannon Trustee
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