Sigma Construction Company
- Based in
- Millbrae
- On San Francisco permits
- Jul 2017 to Jun 2026
- Last 24 months
- 9 permits filed
32 permits since 2000: 24 completed, 2 in progress, 1 never finaled, 5 expired or cancelled.
Of the 1 never-finaled permit, 1 is 3 to 5 years old.
This is the city’s permit record, not a license check. It does not show whether the state license is active, bonded or insured. How to read these records
Permits filed each year
How long permits take
Each point is the quarter the permits were filed, for all building permits across San Francisco. A median counts only permits that have finished, so the shaded recent quarters look faster than they will end up: their slow permits have not finished yet. Hover a point for the slowest 10%. Gaps mean fewer than 5 permits. A rise in the issue line is the city’s review backlog, not the contractor.
Most recent permits
| Filed | Outcome | Address | Work described on the permit | Declared cost |
|---|---|---|---|---|
| Jun 25, 2026 | Completed final sign-off Jul 2026 | 30 Rockwood Ct | revision pa# 202512051070: to eliminate 3 proposed windows and to change size and/or operation of 7 windows.Details
revision pa# 202512051070: to eliminate 3 proposed windows and to change size and/or operation of 7 windows. | |
| Jun 17, 2026 | In progress issued Jun 2026 | 101 Castro St | unit# 103: kitchen and bathroom remodel, like for like. new cabinets and countertops , new tile in bathroom. fixtures and appliances. electrical upgrades ad needed. some minor plumbing work. new drywall (5/8" gyp-x) and insulation in kitchen, bathroom and living room.Details
unit# 103: kitchen and bathroom remodel, like for like. new cabinets and countertops , new tile in bathroom. fixtures and appliances. electrical upgrades ad needed. some minor plumbing work. new drywall (5/8" gyp-x) and insulation in kitchen, bathroom and living room. | $50,000 |
| Mar 31, 2026 | Completed final sign-off Jul 2026 | 20 Topaz Wy | remodel two bathrooms on the 3rd floor, no change to layout or structure.Details
remodel two bathrooms on the 3rd floor, no change to layout or structure. | $25,000 |
| Dec 5, 2025 | Completed final sign-off Jul 2026 | 30 Rockwood Ct | renovation of (e) 2 story residence including reconfiguration of internal stair, addition full bath @ 2nd fl; convertion of 1st fl storage area into habitable space & laundry room; new wood deck @ existing rear yardDetails
renovation of (e) 2 story residence including reconfiguration of internal stair, addition full bath @ 2nd fl; convertion of 1st fl storage area into habitable space & laundry room; new wood deck @ existing rear yard | $175,000 |
| Sep 26, 2025 | Expired or cancelled cancelled Jun 2026 | 30 Rockwood Ct | in kind kitchen remodel, new cabinets and counter tops. in kind bathroom remodel. no structural changes.Details
in kind kitchen remodel, new cabinets and counter tops. in kind bathroom remodel. no structural changes. | $25,000 |
| Sep 24, 2025 | Completed final sign-off May 2026 | 30 Rockwood Ct | replace 3 existing non permitted windows on east second story with 1 vinyl window. street facing in same opening.Details
replace 3 existing non permitted windows on east second story with 1 vinyl window. street facing in same opening. | $1,000 |
| Sep 22, 2025 | Completed final sign-off May 2026 | 30 Rockwood Ct | remove existing siding on east and north second story and replace with plywood and new siding. approx 380 sqft of area. horizontal siding at the second story - hardi plankDetails
remove existing siding on east and north second story and replace with plywood and new siding. approx 380 sqft of area. horizontal siding at the second story - hardi plank | $12,000 |
| Sep 9, 2025 | In progress issued Oct 2025 | 1350 44th Av | add 1 bedroom and bathroom in (e) garage . to include electrical and plumbing work. all work on the 1st floor.Details
add 1 bedroom and bathroom in (e) garage . to include electrical and plumbing work. all work on the 1st floor. | $80,000 |
| Dec 30, 2024 | Completed final sign-off Feb 2025 | 531 46th Av | replace 3 windows in-kind. replace 2 exterior doors in-kind located at back side of house. not visible from the street.Details
replace 3 windows in-kind. replace 2 exterior doors in-kind located at back side of house. not visible from the street. | $2,500 |
| Sep 24, 2024 | Completed final sign-off Dec 2024 | 1415 Waller St | unit #4: remove and replace cabinets and countertops w/ kitchen. remove and replace tiles and bathtub in bathroom.Details
unit #4: remove and replace cabinets and countertops w/ kitchen. remove and replace tiles and bathtub in bathroom. | $20,000 |
| Aug 12, 2024 | Expired or cancelled cancelled Aug 2024 | 1350 44th Av | adu construction in the 1st story level garage of a 2 story single family house consisting off 2 bedrooms and 1 bath.Details
adu construction in the 1st story level garage of a 2 story single family house consisting off 2 bedrooms and 1 bath. | $80,000 |
| Aug 5, 2024 | Completed final sign-off Mar 2025 | 101 Castro St | apt #109: renovate kitchen in-kind- remove and replace cabinets and countertops. install new fixtures. renovate bathroom-remove and replace bathtub and tiles. new fixtures. remove and replace existing siding on south wall 2,500 sq ft and east wall partial 800 sq ft. replace in-kind with wood siding.Details
apt #109: renovate kitchen in-kind- remove and replace cabinets and countertops. install new fixtures. renovate bathroom-remove and replace bathtub and tiles. new fixtures. remove and replace existing siding on south wall 2,500 sq ft and east wall partial 800 sq ft. replace in-kind with wood siding. | $100,000 |
| Jun 17, 2024 | Completed final sign-off Jul 2024 | 804 Stanyan St | remove and replace siding on back wall of garage that is detarned ~2o'x10'. remove and replace siding on right wall of garage that is deterned ~16'x10'.Details
remove and replace siding on back wall of garage that is detarned ~2o'x10'. remove and replace siding on right wall of garage that is deterned ~16'x10'. | $7,000 |
| Feb 5, 2024 | Completed final sign-off Jul 2024 | 804 Stanyan St | revision to app#: 202311171024. change of scope to windows. 5 new non st facing windows on south side. north side street facing windows glass replace w/ (e) sashesat 15 windows. replace siding on south side of building (not visable from the street).Details
revision to app#: 202311171024. change of scope to windows. 5 new non st facing windows on south side. north side street facing windows glass replace w/ (e) sashesat 15 windows. replace siding on south side of building (not visable from the street). | |
| Nov 17, 2023 | Completed final sign-off Jul 2024 | 804 Stanyan St | kitchen remodel in kind: new cabinets and countertops and upgrade electrical. remodel 2 bathooms in kind -new tile and fixtures. replace 16 windows in kind- (15)street visible. no structural work. no change to floor layout or wall layout on 2/f windows are same size and location and type. u<=0.30Details
kitchen remodel in kind: new cabinets and countertops and upgrade electrical. remodel 2 bathooms in kind -new tile and fixtures. replace 16 windows in kind- (15)street visible. no structural work. no change to floor layout or wall layout on 2/f windows are same size and location and type. u<=0.30 | $75,000 |
| May 22, 2023 | Never finaled issued May 2023, no final | 273 27th Av | kitchen remodel in kind - remove exisitng cabinets and countertops. install new cabinets and countertops. no structural work. no change to floor layout. no change to wall layout.Details
kitchen remodel in kind - remove exisitng cabinets and countertops. install new cabinets and countertops. no structural work. no change to floor layout. no change to wall layout. | $10,000 |
| Sep 14, 2022 | Completed final sign-off Dec 2022 | 1415 Waller St | kitchen remodel. remove and replace kitchen cabinets and countertops in-kind. no wall layout changeDetails
kitchen remodel. remove and replace kitchen cabinets and countertops in-kind. no wall layout change | $5,000 |
| Sep 12, 2022 | Completed final sign-off Dec 2022 | 1415 Waller St | one bathroom remodel in kind. remove existing tiles, vanity, and replace with new tiles and vanity. replace shower valvesDetails
one bathroom remodel in kind. remove existing tiles, vanity, and replace with new tiles and vanity. replace shower valves | $9,000 |
| Mar 14, 2022 | Completed final sign-off Jul 2023 | 2347 16th Av | revision to pa# 201901160474. kitchen remodel at 2nd fl. framing and finishes for bathroom, bedroom and laundry at 1st fl. window and siding replacement as noted.Details
revision to pa# 201901160474. kitchen remodel at 2nd fl. framing and finishes for bathroom, bedroom and laundry at 1st fl. window and siding replacement as noted. | $30,000 |
| Dec 3, 2021 | Completed final sign-off Aug 2022 | 2002 Pacific Av | remove existing kitchen cabinets, counters and replace with new. hall bath remove floor and shower tile, vanity. retile, install new vanites, toilets, shower valve trim. master bath remove tile, vanity, tub. install new tile, vanity, tub fixture. minor plumbing work,upgrade kitchen electrical to codDetails
remove existing kitchen cabinets, counters and replace with new. hall bath remove floor and shower tile, vanity. retile, install new vanites, toilets, shower valve trim. master bath remove tile, vanity, tub. install new tile, vanity, tub fixture. minor plumbing work,upgrade kitchen electrical to cod | $50,000 |
| Sep 8, 2021 | Expired or cancelled expired Sep 2026 | 173 Dalewood Wy | revision to 202008061273 changest to layout at ground flDetails
revision to 202008061273 changest to layout at ground fl | |
| Sep 29, 2020 | Completed final sign-off Feb 2021 | 4463 Mission St | unit 2 - replace kitchen cabinets, upgrade counter tops. upgrade electrical. remodel/retile bathroom. existing plumbing.Details
unit 2 - replace kitchen cabinets, upgrade counter tops. upgrade electrical. remodel/retile bathroom. existing plumbing. | $25,000 |
| Aug 6, 2020 | Expired or cancelled expired Sep 2026 | 173 Dalewood Wy | remodeling of a 2 story s.f.h. consisting of 3 br & 2 ba. the remodel will refurbish the up stairs 2 bathrooms and kitchen. additionally converting the single bonus room on the 1st level to a bedroom, family room, bathroom, and laundry area. windows will be expanded to meet egress needs.Details
remodeling of a 2 story s.f.h. consisting of 3 br & 2 ba. the remodel will refurbish the up stairs 2 bathrooms and kitchen. additionally converting the single bonus room on the 1st level to a bedroom, family room, bathroom, and laundry area. windows will be expanded to meet egress needs. | $100,000 |
| Dec 5, 2019 | Completed final sign-off May 2020 | 1350 44th Av | replace kitchen cabinets, upgrade electrical, replace countertops, sliding door, window. not visible from streetDetails
replace kitchen cabinets, upgrade electrical, replace countertops, sliding door, window. not visible from street | $30,000 |
| Jun 12, 2019 | Completed final sign-off Aug 2019 | 1226 06th Av | #2: replace bathtub and valves. new shower head, new tile on shower walls & floors. unit 2 is located in back of bldg, 2nd fl.Details
#2: replace bathtub and valves. new shower head, new tile on shower walls & floors. unit 2 is located in back of bldg, 2nd fl. | $75,000 |
| Jan 11, 2019 | Completed final sign-off Apr 2019 | 4463 Mission St | apartment #1: replace kitchen cabinets. upgrade countertops. upgrade electrical. replace (4) windows. unit is located in the back of the building top floor.Details
apartment #1: replace kitchen cabinets. upgrade countertops. upgrade electrical. replace (4) windows. unit is located in the back of the building top floor. | $20,000 |
| Oct 25, 2018 | Completed final sign-off Nov 2020 | 94 Elsie St | renovation of a single family dwelling unit. (1)story horizontal addition @ rear w/ roof deck on top. (n) bathroom @ ground level. excavation less than 50 cy for (n) slab @ addition. renovation of kitchen. (n) patio @ rear yard.Details
renovation of a single family dwelling unit. (1)story horizontal addition @ rear w/ roof deck on top. (n) bathroom @ ground level. excavation less than 50 cy for (n) slab @ addition. renovation of kitchen. (n) patio @ rear yard. | $100,000 |
| Oct 15, 2018 | Expired or cancelled cancelled Feb 2021 | 1431 18th Av | replace kitchen cabinets, upgrade electrical and plumbing. new countertops in kitchen. no wall moved, removed, added or infilled. all existing layouts to remain unchanged.Details
replace kitchen cabinets, upgrade electrical and plumbing. new countertops in kitchen. no wall moved, removed, added or infilled. all existing layouts to remain unchanged. | $21,000 |
| Jan 9, 2018 | Completed final sign-off Jul 2018 | 2942 Divisadero St | existing roof deck to be replacedDetails
existing roof deck to be replaced | $10,000 |
| Dec 13, 2017 | Completed final sign-off Dec 2017 | 101 Castro St | to comply with complaint #201790011, item #2. install 6 rescue windows in bedroom, same opening - in kind. replace rear exit door at unit #107. repair rear stairs where damaged due to dry rot. less than 50%.Details
to comply with complaint #201790011, item #2. install 6 rescue windows in bedroom, same opening - in kind. replace rear exit door at unit #107. repair rear stairs where damaged due to dry rot. less than 50%. | $10,000 |
| Jul 27, 2017 | Completed final sign-off Aug 2017 | 1226 06th Av | apt 6: replace kitchen cabinets, upgrade electricals, replace countertops inkitchen. replce tub, valves & shower heads and retile in bathroom.Details
apt 6: replace kitchen cabinets, upgrade electricals, replace countertops inkitchen. replce tub, valves & shower heads and retile in bathroom. | $28,000 |
| Jul 17, 2017 | Completed final sign-off Jul 2017 | 1383 Florida St | repair lower run of (e) stairs in the rear less than 50% of stairs. replace in-kind. pt wood.Details
repair lower run of (e) stairs in the rear less than 50% of stairs. replace in-kind. pt wood. | $3,500 |