Blackline Construction
- Based in
- San Francisco
- On San Francisco permits
- Nov 2003 to Aug 2026
- Last 24 months
- 20 permits filed
135 permits since 2000: 115 completed, 6 in progress, 7 never finaled, 7 expired or cancelled.
Of the 7 never-finaled permits, 2 are 3 to 5 years old, 2 are 5 to 10 years old, 3 are 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: 13 completed, 1 in progress, 1 expired or cancelled. Typically 91 days from filing to permit and 202 days from permit to final inspection.
| Filed | Outcome | Address | Work described on the permit | Declared cost |
|---|---|---|---|---|
| Oct 24, 2025 | Completed final sign-off Sep 2026 | 1031 Valencia St | revise pa #202506058022 to include electrical plugs and replacement lights. see original permit for accessibility features.keep (e) mezzanie and stairs as is and relocate (e) drinking fountainsDetails
revise pa #202506058022 to include electrical plugs and replacement lights. see original permit for accessibility features.keep (e) mezzanie and stairs as is and relocate (e) drinking fountains | $100,000 |
| Aug 29, 2025 | Completed final sign-off Jul 2026 | 49 Elsie St | ref 202410213336- add exterior stairs at rear of propertyDetails
ref 202410213336- add exterior stairs at rear of property | $20,000 |
| Jul 8, 2025 | In progress issued Jul 2025 | 43 Whitney St | infill 533 sf ground floor, below existing deck to include new primary suite with bedroom, bathroom, 2 closets, and direct garden access. relocate existing deck stair with new fire rated wall at property line. waterproof existing main floor terrace & relocate associated stair. create new serviceDetails
infill 533 sf ground floor, below existing deck to include new primary suite with bedroom, bathroom, 2 closets, and direct garden access. relocate existing deck stair with new fire rated wall at property line. waterproof existing main floor terrace & relocate associated stair. create new service | $200,000 |
| Jun 5, 2025 | Completed final sign-off Sep 2026 | 1031 Valencia St | change of use from construction's office (trade office) to proposed retail store w/service center. alterations include demo of mezzaine office and stairs,(e) restrooms replaced w/accessible restrooms.light, electrical,hvac, sprinklers under separate permit.no increase in area.no changes to envelopeDetails
change of use from construction's office (trade office) to proposed retail store w/service center. alterations include demo of mezzaine office and stairs,(e) restrooms replaced w/accessible restrooms.light, electrical,hvac, sprinklers under separate permit.no increase in area.no changes to envelope | $420,000 |
| Dec 2, 2024 | Completed final sign-off Apr 2026 | 40 Sycamore St | 100% affordable housing, mayor dir 13-01: addition 2-local adu's to 1/f: (1)studio and (1)2-bedroom. (e) cottage @ clarion alley unchanged. voluntary soft story seismic retrofit per adminstrative bulletin no.94 under separate permit. sprinkler under separate permit. relocate rear stair on separateDetails
100% affordable housing, mayor dir 13-01: addition 2-local adu's to 1/f: (1)studio and (1)2-bedroom. (e) cottage @ clarion alley unchanged. voluntary soft story seismic retrofit per adminstrative bulletin no.94 under separate permit. sprinkler under separate permit. relocate rear stair on separate | $209,352 |
| Oct 21, 2024 | Completed final sign-off Jul 2026 | 49 Elsie St | the scope of work involves: removal and replacement of an existing exterior wood framed deck and stair structure in the rear yard of a single family home.Details
the scope of work involves: removal and replacement of an existing exterior wood framed deck and stair structure in the rear yard of a single family home. | $20,000 |
| May 20, 2024 | Expired or cancelled withdrawn Jul 2024 | 40 Sycamore St | remodel 2 kitchens and bathrooms. replace 30 windows. to back building- insulate and add exterior cladding. replace front stairs - less than 50%. paint entire building.Details
remodel 2 kitchens and bathrooms. replace 30 windows. to back building- insulate and add exterior cladding. replace front stairs - less than 50%. paint entire building. | $20,000 |
| Mar 7, 2023 | Completed final sign-off Mar 2023 | 75 Capra Wy | to comply with his 202200487 item #3- repair stairs in kindDetails
to comply with his 202200487 item #3- repair stairs in kind | $5,000 |
| Feb 17, 2023 | Completed final sign-off Jan 2024 | 528 Natoma St | voluntary seismic strengthening of ground flr- new shear walls and foundations, voluntary structural repairs to exterior rear decks and staircase, to comply w/nov# 201979391, remove roof covering at rear deak area.to comply w/nov# 201802811, provide heat. to comply w/nov# 201947472 provide hot waterDetails
voluntary seismic strengthening of ground flr- new shear walls and foundations, voluntary structural repairs to exterior rear decks and staircase, to comply w/nov# 201979391, remove roof covering at rear deak area.to comply w/nov# 201802811, provide heat. to comply w/nov# 201947472 provide hot water | $120,000 |
| Oct 23, 2020 | Completed final sign-off Apr 2023 | 2676 Folsom St | at 2680-2682 folsom street, voluntary lateral force-resisting system alteration of cripple walls and attachments to foundations. at 2676-2678 folsom street, voluntary lateral strengthening of exterior stairs.Details
at 2680-2682 folsom street, voluntary lateral force-resisting system alteration of cripple walls and attachments to foundations. at 2676-2678 folsom street, voluntary lateral strengthening of exterior stairs. | $50,000 |
| Sep 12, 2020 | Completed final sign-off Apr 2021 | 3254 23rd St | 1. remove and rebuild in kind exterior stair structure from the ground floor to second floor. 2. voluntary structural improvements to exterior stair framing.Details
1. remove and rebuild in kind exterior stair structure from the ground floor to second floor. 2. voluntary structural improvements to exterior stair framing. | $8,000 |
| Aug 1, 2016 | Completed final sign-off Aug 2016 | 544 Clayton St | exterior stair dry rott repair, less than 50% repair.Details
exterior stair dry rott repair, less than 50% repair. | $4,500 |
| May 22, 2015 | Completed final sign-off Jun 2015 | 743 Minna St | legalize lower level deck and stairs - no other work. maher naDetails
legalize lower level deck and stairs - no other work. maher na | $12,000 |
| Aug 28, 2012 | Completed final sign-off Sep 2012 | 1433 43rd Av | remove and replace existing front entry staircase. in kind replacement due to water damage.Details
remove and replace existing front entry staircase. in kind replacement due to water damage. | $3,500 |
| Apr 23, 2008 | Completed final sign-off Mar 2013 | 435 Burnett Av | horizontal addition to rear of existing second floor 59 sq.ft. new 3rd story vertical addition for master bedroom & bathroom. including new stair. new fireplace.Details
horizontal addition to rear of existing second floor 59 sq.ft. new 3rd story vertical addition for master bedroom & bathroom. including new stair. new fireplace. | $77,000 |