Prosper Construction Dev Inc.
- Based in
- Sunnyvale
- On San Francisco permits
- Dec 2012 to Aug 2026
- Last 24 months
- 45 permits filed
238 permits since 2000: 142 completed, 30 in progress, 50 never finaled, 16 expired or cancelled.
Of the 50 never-finaled permits, 20 are 3 to 5 years old, 29 are 5 to 10 years old, 1 is over 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 stairs 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.
Stairs permits
15 stairs permits: 8 completed, 2 in progress, 3 never finaled, 2 expired or cancelled. Typically 21 days from filing to permit and 166 days from permit to final inspection.
| Filed | Outcome | Address | Work described on the permit | Declared cost |
|---|---|---|---|---|
| Jun 29, 2026 | In progress issued Jul 2026 | 1930 33rd Av | add conditioned space on 1st flr (700 sqft) & a (n) bathroom. infill lightwell (50sqft) on 2nd flr. add a (n) interior stairway. relocate kitchen on 1st flr.Details
add conditioned space on 1st flr (700 sqft) & a (n) bathroom. infill lightwell (50sqft) on 2nd flr. add a (n) interior stairway. relocate kitchen on 1st flr. | $175,000 |
| Nov 13, 2025 | Completed final sign-off Apr 2026 | 888 Darien Wy | remove (e) ext stucco in designated areas to expose substrage and assess for moisture instrusion or damage; install new water resistent barrier, flashing & lathe; 3 cont of stucco; staircase less than 50%, brick replacement and waterproof. no structural modifications.Details
remove (e) ext stucco in designated areas to expose substrage and assess for moisture instrusion or damage; install new water resistent barrier, flashing & lathe; 3 cont of stucco; staircase less than 50%, brick replacement and waterproof. no structural modifications. | $45,000 |
| Nov 13, 2024 | Completed final sign-off Nov 2024 | 489 30th St | upper terrace - fix rain leak in external stairs, repair staircase tiles & flashing, repair waterproofing, repair stucco.Details
upper terrace - fix rain leak in external stairs, repair staircase tiles & flashing, repair waterproofing, repair stucco. | $15,000 |
| Apr 9, 2024 | Completed final sign-off Jun 2024 | 2447 Jackson St | dry rot repair to the outside rear wall adjacent to new stairs (which was under a separate permit).Details
dry rot repair to the outside rear wall adjacent to new stairs (which was under a separate permit). | $15,000 |
| Feb 29, 2024 | In progress issued Mar 2024 | 2449 Jackson St | in kind stair replacement in rear yard due to dry rotDetails
in kind stair replacement in rear yard due to dry rot | $23,450 |
| Dec 1, 2023 | Completed final sign-off Jul 2024 | 83 Sharon St | in kind stair replacement in side yard due to dry rot.Details
in kind stair replacement in side yard due to dry rot. | $20,000 |
| Aug 14, 2023 | Completed final sign-off Aug 2026 | 162 27th Av | revision to 201811095518. reduction in scope of work in which no 3rd fl addition in front of the house. retain infill entry stair but no lightwell change. retain 1st fl approved plans. retain 2nd fl kitchen but 2nd fl (e) bath change to two. retain 3rd fl master rd, master bath &Details
revision to 201811095518. reduction in scope of work in which no 3rd fl addition in front of the house. retain infill entry stair but no lightwell change. retain 1st fl approved plans. retain 2nd fl kitchen but 2nd fl (e) bath change to two. retain 3rd fl master rd, master bath & | |
| May 2, 2023 | Completed final sign-off Nov 2023 | 342 26th Av | replace (e) interior stairs. fill in (e) courtyard at 2/f. remodel (e) bathroom and kitchen.Details
replace (e) interior stairs. fill in (e) courtyard at 2/f. remodel (e) bathroom and kitchen. | $125,000 |
| Nov 3, 2022 | Expired or cancelled expired Mar 2026 | 401 Anderson St | interior remodel 1st fl, add a master bedroom, media room with wet bar, family room, full bath. 2nd fl: remodel kitchen, bath, relocate interior stairDetails
interior remodel 1st fl, add a master bedroom, media room with wet bar, family room, full bath. 2nd fl: remodel kitchen, bath, relocate interior stair | $100,000 |
| Sep 30, 2021 | Completed final sign-off Mar 2022 | 347 Prague St | to comply w/ nov 202180803 < 50% framing demo the (e) remaining pony wall and stucco and replace in kind. less than 50% structural stair/pony wall structural framing replaced in kind. handrails per cbc 1014.pony wall replace in kind. prime and paint. front entrance repair.Details
to comply w/ nov 202180803 < 50% framing demo the (e) remaining pony wall and stucco and replace in kind. less than 50% structural stair/pony wall structural framing replaced in kind. handrails per cbc 1014.pony wall replace in kind. prime and paint. front entrance repair. | $15,000 |
| Aug 16, 2021 | Never finaled issued Mar 2023, no final | 1073 Church St | 1. interior remodel of lower floor to be attached adu: - new kitchen, living area, two bedrooms and two bathrooms; - relocation of water heater and furnace to the basement; 2. remodel of the rear staircase connecting the main unit and adu; 3. replace/retrofit the existing masonry foundationDetails
1. interior remodel of lower floor to be attached adu: - new kitchen, living area, two bedrooms and two bathrooms; - relocation of water heater and furnace to the basement; 2. remodel of the rear staircase connecting the main unit and adu; 3. replace/retrofit the existing masonry foundation | $112,000 |
| Feb 12, 2021 | Expired or cancelled expired Apr 2026 | 241 Liberty St | unenclosed porch to enclosed(n)siding,glass door&window interior reconfiguring include install of interior stairs and total remodeling. create 2bedrooms & 2bathrooms on lower level.2window facing rear yard to be replaced with glazed door 5new window&foundation.project to add 602 sqft condit space.Details
unenclosed porch to enclosed(n)siding,glass door&window interior reconfiguring include install of interior stairs and total remodeling. create 2bedrooms & 2bathrooms on lower level.2window facing rear yard to be replaced with glazed door 5new window&foundation.project to add 602 sqft condit space. | $185,000 |
| Jan 13, 2021 | Never finaled issued May 2021, no final | 1353 17th Av | renovation of 1st floor and basement floor. kitchen remodel, relocation of internal staircaseDetails
renovation of 1st floor and basement floor. kitchen remodel, relocation of internal staircase | $200,000 |
| Nov 13, 2019 | Completed final sign-off Jun 2022 | 2412 Lake St | 1st fl convert e space to guest bedroom, family rm, full bath. 2nd fl remodel kitchen, powder rm, 3rd fl remodel bath, add full bath, 4 dormers. rear stairDetails
1st fl convert e space to guest bedroom, family rm, full bath. 2nd fl remodel kitchen, powder rm, 3rd fl remodel bath, add full bath, 4 dormers. rear stair | $80,000 |
| Dec 20, 2012 | Never finaled issued Oct 2013, no final | 1369 04th Av | remove (e) deck. construct 2 story deck & stairs to rear yard.Details
remove (e) deck. construct 2 story deck & stairs to rear yard. | $10,000 |