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General ConstructionSunset/ParksidePermit issued

2 Family Dwelling Additions & Alterations at 1347 40th Av, San Francisco

1347 40th Av, Sunset/Parkside, 94122

Winston

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Reported project cost

$185,000

As declared on the permit filing. Additions & Alterations · 2 Family Dwelling.

Issued
May 29, 2026
Expires
—
License
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What was permitted

Homeowners considering an Accessory Dwelling Unit (ADU) in the Sunset/Parkside neighborhood can use this permit as a cost reference. This project involves converting existing conditioned space within a 2-family dwelling into an ADU.

The permit was issued on May 29, 2026, with a significant estimated project cost of $185,000. Healthy Building Science Inc. was the contractor for this addition and alteration.

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View the official permit record

Tracking number, work description, cost and dates

Tracking number202603167679
Work permit #—
Job filing number—
Work typeAdditions & Alterations · 2 Family Dwelling
Statusissued
Job descriptionconvert existing conditioned space on street level to adu.
Floor / unit—
Estimated cost$185,000
ApprovedMay 26, 2026
IssuedMay 29, 2026
Expires—
BBL—
BIN—

Related searches

2 family dwellingADU conversionSunset/ParksideSan Franciscogeneral construction$185,000