Home addition permits in San Francisco

Additions and square-footage expansions permitted in San Francisco. These are the largest residential projects a homeowner undertakes and carry the highest declared values.

25permits listed
$8,733,344declared value
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Recent permits

441 BAKER ST$1,052,970
interior remodel,reconfiguration,lower level square footage addition,foundation & seismic upgrade.slab of(e)lower level 2-car tandem garage to be lowered and partially converted to interior living space with bedroom/
Filed 2026-04-09 · addition alteration · filed
682 MIRAMAR AV$1,000,000
full interior remodel for bathrooms, kitchen & living spaces. excavation of (e) basement to add more habitable space. replace windows throughout project. add skylight. remove deck.
Filed 2026-06-30 · addition alteration · filed
746 CASTRO ST$750,000
interior reomodel at top unit & dormer addition (max 8x8 feet). relocate lower unit to basement & expand upper unit to the 1st fl. expand garage and add an elevator. expand rear patio, retain wall & remove ex
Filed 2026-05-29 · addition alteration · filed
49 WOODLAND AV$600,000
res. addition & remodel. rear addition at 1st & 2nd fl. new windows & doors at rear & 3 new skylights. new finishes throughout. hvac, plumbing, & electrical work. rear yard area work includes excavati
Filed 2026-06-03 · addition alteration · filed
4348 21ST ST$600,000
(n) addition to home, into rear yard, (n) bedrooms, office and bathroom and (n) exterior patios
Filed 2026-05-17 · addition alteration · filed
94 ALOHA AV$500,000
vertical & horizontal addition, 3-story expansion focused on rear yard across both levels, front facade updated finishes, new windows, new bay window addition, landscape & drainage- water-reistant landscape will
Filed 2026-04-15 · addition alteration · filed
98 WEST PORTAL AV$483,507
no change in occupancy or use . no additions to area or height. interior ti of (e) retail bank and financial banking center to include (n) finishes, partitions, and meps
Filed 2026-07-14 · addition alteration · filed
69 MONTCALM ST$431,265
1st fl: add 1 bed,1 full bath and laundry.2nd fl: reconfigure(e) living, kitchen & bath & bedroom per layout. 3rd fl:remodel (e)bedroom & add 1 full bath.add new roof decks @ rear,replace front stairs railing
Filed 2026-04-10 · addition alteration · filed
354 MONTICELLO ST$380,000
revision to #202607245525: remodel (e) kitchen, bathroom, add 1 new bathroom,rebuilt interior staricase, replace (e) sheetrock w/ new at 2/f. construct 2 bedroom, 1 full bath, & media room at g/f.
Filed 2026-07-31 · addition alteration · filed
735 40TH AV$380,000
rear horizontal addition to (e) 3-story duplex building. adding 2 bedrooms and a full bathroom to eachunit. remodel (e) kitchens.
Filed 2026-07-07 · addition alteration · filed
255 BOCANA ST$300,000
remodel entire home to include remodel of (1) kitchen and 2 bathroom remodel and include (n) bathroom. new exterior stair from (e) deck to grade. no additional square footage or change to footprint.
Filed 2026-06-22 · addition alteration · filed
3806 CLAY ST$250,000
revision to permits 202410082572 & 202606123086: to remove the skylights in the roof and replace them with dormers. this revision will also expand powder room beneath the dormer, add a new attic utility sink, and a n
Filed 2026-04-06 · addition alteration · filed
2728 VICENTE ST$250,000
1200sqf 2-story horizontal addition of (e) sfh. 1/f addition includes 2 bedrooms, 2 baths, closets, laundry room, mech room.2/f addition includes kitchen, dining, living room, new deck. interior remodel of (e) spaces
Filed 2026-07-14 · addition alteration · filed
465 46TH AV$250,000
1st floor: add 1 bedroom, 1 closet, relocate bathroom, laundry area and interior staircase. 2nd floor: add 1 master bath, 1 master closet, 1 powder room, relocate kitchen. add new roof deck with roof hatch.
Filed 2026-07-27 · addition alteration · filed
125 ALMA ST$200,000
addition to existing 3rd floor to remodel existing rooms & add new bedroom and balcony.
Filed 2026-04-13 · addition alteration · filed
1533 MASON ST$195,602
add 2 bedroom, 1 bathroom adu under state adu program at (e) ground floor.
Filed 2026-06-04 · addition alteration · filed
1117 HAMPSHIRE ST$190,000
residence remodel and addition, including partial demo at the rear and ground level excavation to increase floor to ceiling height.
Filed 2026-06-30 · addition alteration · filed
377 OAK PARK DR$150,000
level 1 interior remodel extend back to align with 2nd level and add 2 bedrooms and 1 bath. add a 6' wide deck on the 2nd level.
Filed 2026-04-09 · addition alteration · filed
1480 WILLARD ST$150,000
remodel basement in single family home. add new bath & sauna. new glass doors & window.
Filed 2026-07-24 · addition alteration · filed
1214 NEWHALL ST$150,000
remove & replace damaged: roofing, roof sheating, wall framing,windows,doors,dising,drywall, test electrical remove & replace damaged, test plumbing remove & replace damaged, add smoke & carbon monoxidse
Filed 2026-07-21 · addition alteration · filed
1045 COLE ST$110,000
partial renovation to single family home including kitchen and powderroom. add new windows to rear. remove fireplace and chimney. replace in-kind roof deck guardrail, repair rear facade dry rot and roof decking.
Filed 2026-07-29 · addition alteration · filed
1988 21ST AV$100,000
remodel bldg layout by demo e) walls & provide n) structural support. add 2 bedrm & 2 baths to g/f. enclose e) stair area to const a n) interior staircase, install a n) skylight, replace e) ground fl windows w/ n
Filed 2026-04-23 · addition alteration · filed
264 DALEWOOD WY$100,000
scope includes replacement of e window with new sliding glass door, removel e bathroom, addition of kitchette with cook top (2 burner) on gr fl
Filed 2026-07-28 · addition alteration · filed
3557 GEARY BL$90,000
add rooms in the commercial space for proposed piano studio
Filed 2026-07-17 · addition alteration · filed
436 42ND AV$70,000
442sqft addition including new guest & media room. new deck over proposed addition.
Filed 2026-06-03 · addition alteration · filed
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Other permit types in San Francisco

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