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General ConstructionLone Mountain/USFPermit issued

Basement Conversion and Alterations at 243 Collins St, San Francisco

243 Collins St, Lone Mountain/USF, 94118

Winston

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Reported project cost

$50,000

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

Issued
September 22, 2026
Expires
—
License
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What was permitted

Homeowners in San Francisco's Lone Mountain/USF neighborhood can find cost indicators for converting basement spaces. This project involved transforming a basement into habitable areas, including offices and a living room with a kitchenette.

This alteration project, with an estimated cost of $50,000, was issued on September 22, 2026. The work also included adding a window to the first floor and ensuring the basement living space allowed for sleeping.

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View the official permit record

Tracking number, work description, cost and dates

Tracking number202606264051
Work permit #—
Job filing number—
Work typeAlterations · 2 Family Dwelling
Statusissued
Job descriptionrev to pa# 2026-0220-6288: add 1 window in proposed living room on 1st fl. convert basement to habitable space with 2 offices and living room with sleeping allowed, kitchenette
Floor / unit—
Estimated cost$50,000
ApprovedSeptember 22, 2026
IssuedSeptember 22, 2026
Expires—
BBL—
BIN—

Related searches

basement conversionSan FranciscoLone Mountain/USFAlterations2 Family Dwelling$50,000habitable spacekitchenette