3 N 1 Construction Inc.
- Based in
- South San Francisco
- On San Francisco permits
- Dec 2018 to Apr 2026
- Last 24 months
- 7 permits filed
19 permits since 2000: 18 completed, 1 never finaled.
Of the 1 never-finaled permit, 1 is 5 to 10 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 |
|---|---|---|---|---|
| Apr 30, 2026 | Completed final sign-off Jul 2026 | 305 19th Av | in-kind remodeling of 1 bathroom(s) in 2nd fl with 0 shower pan(s).Details
in-kind remodeling of 1 bathroom(s) in 2nd fl with 0 shower pan(s). | $28,000 |
| Jan 16, 2026 | Completed final sign-off Apr 2026 | 3027 Rivera St | recommencement and completion of work approved under pa# 202104027779.Details
recommencement and completion of work approved under pa# 202104027779. | $1,300 |
| Nov 24, 2025 | Completed final sign-off Feb 2026 | 1778 35th Av | permit application in response to the nov #2025-43842 to repair the damged portion of the foundation and exterior wall caused by the car collision.Details
permit application in response to the nov #2025-43842 to repair the damged portion of the foundation and exterior wall caused by the car collision. | $25,000 |
| Aug 19, 2025 | Completed final sign-off Sep 2025 | 2733 Ortega St | install hardie cement siding plank on top of existing wood siding on rear wall only. customer states that existing siding is in good condition and any existing rot will be removed and substrate replaced.Details
install hardie cement siding plank on top of existing wood siding on rear wall only. customer states that existing siding is in good condition and any existing rot will be removed and substrate replaced. | $10,000 |
| Feb 19, 2025 | Completed final sign-off May 2025 | 2122 22nd Av | add new media room on 1/f. 2)install barsink in both new media room and (e) family room on 1/f. 3)remodel 2/f bathroom. 4)add a bedroom separation wall on 2/f of (e) rear addition.Details
add new media room on 1/f. 2)install barsink in both new media room and (e) family room on 1/f. 3)remodel 2/f bathroom. 4)add a bedroom separation wall on 2/f of (e) rear addition. | $45,000 |
| Jan 15, 2025 | Completed final sign-off May 2025 | 2122 22nd Av | 2/f: remodel rear additional bathroom. replace in kind and no wall removal.Details
2/f: remodel rear additional bathroom. replace in kind and no wall removal. | $9,000 |
| Jan 15, 2025 | Completed final sign-off May 2025 | 1271 14th Av | bath remodel with water fixture rearrangement. no wall removal. replace in kind. tiles, vanity, convert existing tub to standing showr with same footprint. move toilet to existing standing shower space with 30" wide and 24" clearance at front.Details
bath remodel with water fixture rearrangement. no wall removal. replace in kind. tiles, vanity, convert existing tub to standing showr with same footprint. move toilet to existing standing shower space with 30" wide and 24" clearance at front. | $12,000 |
| Aug 26, 2024 | Completed final sign-off Nov 2024 | 500 Ellington Av | bathroom remodel with water fixture rearragement . no wall removal. replace in-kind: tiles, vanity. convert existing tub to standing shower with same footprint. move toilet to existing standing shower space with 30"wide and 24" clearance at front.Details
bathroom remodel with water fixture rearragement . no wall removal. replace in-kind: tiles, vanity. convert existing tub to standing shower with same footprint. move toilet to existing standing shower space with 30"wide and 24" clearance at front. | $20,000 |
| Aug 12, 2024 | Completed final sign-off Mar 2025 | 611 38th Av | in response to dbi complaint 202425913. add new bathroom and remodel existing kitchen at 2/f. reconfigure existing bathroom at 3/f. no exterior work.Details
in response to dbi complaint 202425913. add new bathroom and remodel existing kitchen at 2/f. reconfigure existing bathroom at 3/f. no exterior work. | $60,000 |
| Dec 5, 2023 | Completed final sign-off May 2024 | 933 Vicente St | repair/add on west side of exterior wall for 7" hardie cement plank siding. (approx. 500 sq ft). extg wall with wood siding materialDetails
repair/add on west side of exterior wall for 7" hardie cement plank siding. (approx. 500 sq ft). extg wall with wood siding material | $3,000 |
| May 17, 2022 | Completed final sign-off Dec 2022 | 66 Valmar Tr | rev to pa202201286912: replace whole house plaster.Details
rev to pa202201286912: replace whole house plaster. | $30,000 |
| Feb 17, 2022 | Completed final sign-off Nov 2024 | 3022 Vicente St | repair & replace front end of the house's stucco. only stucco work at front wall.Details
repair & replace front end of the house's stucco. only stucco work at front wall. | $3,000 |
| Jan 28, 2022 | Completed final sign-off Dec 2022 | 66 Valmar Tr | 1st fl - add laundry and storage; 2nd floor - remodel kitchen, bathroom and add 1 full bath; add rear deckDetails
1st fl - add laundry and storage; 2nd floor - remodel kitchen, bathroom and add 1 full bath; add rear deck | $57,000 |
| Jun 1, 2021 | Completed final sign-off Nov 2023 | 2347 17th Av | infill @ 1st floor rear. add 1 new family room. 2 new bedrooms, 2 new baths & 2 new closets @ 1st floor. remodel (e) kitchen @ 2nd floor. relocate (e) bath & add new bath @ 2nd floor. reconfigure interior stair case per plan. reconfigure rear yard staircase & remove lightwell staircase per plan.Details
infill @ 1st floor rear. add 1 new family room. 2 new bedrooms, 2 new baths & 2 new closets @ 1st floor. remodel (e) kitchen @ 2nd floor. relocate (e) bath & add new bath @ 2nd floor. reconfigure interior stair case per plan. reconfigure rear yard staircase & remove lightwell staircase per plan. | $120,000 |
| Sep 13, 2019 | Completed final sign-off Apr 2021 | 1586 22nd Av | add a family room, (2) bedrooms and (2) full bathrooms on the 1st fl. relocate furnance water heater, washer and dryerDetails
add a family room, (2) bedrooms and (2) full bathrooms on the 1st fl. relocate furnance water heater, washer and dryer | $70,000 |
| Jun 4, 2019 | Completed final sign-off Jan 2020 | 14 Fredson Ct | replace stucco in-kind at front.Details
replace stucco in-kind at front. | $5,000 |
| May 28, 2019 | Completed final sign-off Jan 2020 | 14 Fredson Ct | revision to approved permit #201812077749, to shown two 9e) skylights on existing floor plans. relocate bathroom, install 2 new concrete footing.Details
revision to approved permit #201812077749, to shown two 9e) skylights on existing floor plans. relocate bathroom, install 2 new concrete footing. | $1,000 |
| Apr 18, 2019 | Never finaled issued Apr 2019, no final | 1638 42nd Av | remodel 2nd floor kitchen & bathroom - no layout change.Details
remodel 2nd floor kitchen & bathroom - no layout change. | $35,000 |
| Dec 7, 2018 | Completed final sign-off Jan 2020 | 14 Fredson Ct | enclose center light court. relocate kitchen, add new full bath, remodel bath, add 2 ndw skylights on 2nd fl add media room, 2 bedrooms, full bath 1st fl replace furnaceDetails
enclose center light court. relocate kitchen, add new full bath, remodel bath, add 2 ndw skylights on 2nd fl add media room, 2 bedrooms, full bath 1st fl replace furnace | $90,000 |