Block 3603, lot 088
4121 20th St
- City’s use
- Multi-Family Residential
- Built
- 1900
- Stories
- 2
- Units
- 2
- Rooms
- 2 bathrooms
- Building
- 2,100 sq ft
- Lot
- 2,848 sq ft
- Zoning
- RH2
- Construction type
- D
From the assessor's latest secured roll, which can lag recent work. Lot plans, zoning and planning history on the city’s Property Information Map
Permits filed here
15 permits filed for this property since 2000.
| Filed | Outcome | Address | Contractor | Work described on the permit | Declared cost |
|---|---|---|---|---|---|
| Feb 11, 2026 | In progress issued Feb 2026 | 4121 20th St | Doran Construction & Design | revision to pa# 202308235085: extend depth of previously approved rear deck by 3'0" to reconcile to previously approved structure drawings. total new deck depth to be 6'2" with 5'6" extension for spiral stair to grade. all work within buildable lot area. (ref pa# 202507251674)Details
revision to pa# 202308235085: extend depth of previously approved rear deck by 3'0" to reconcile to previously approved structure drawings. total new deck depth to be 6'2" with 5'6" extension for spiral stair to grade. all work within buildable lot area. (ref pa# 202507251674) | $5,000 |
| Dec 23, 2025 | Completed final sign-off Sep 2026 | 4123 20th St | Angeles Garcia Roofing Inc | re-roofing: remove and replace roofing material / existing roofing material (in-kind)Details
re-roofing: remove and replace roofing material / existing roofing material (in-kind) | $22,000 |
| Jul 25, 2025 | In progress issued Aug 2025 | 4121 20th St | Doran Construction & Design | revision to pa #202308235085 and 202406063893. convert approved basement gym to home office and construct new basement bathroom. relocate kitchen at 2nd floor. remove full bathroom at 2nd fl. and new bathroom at 3rd f. move primary bathroom at 3rd floor.Details
revision to pa #202308235085 and 202406063893. convert approved basement gym to home office and construct new basement bathroom. relocate kitchen at 2nd floor. remove full bathroom at 2nd fl. and new bathroom at 3rd f. move primary bathroom at 3rd floor. | $20,000 |
| Jul 2, 2024 | In progress issued Jan 2025 | 4121 20th St | Doran Construction & Design | revision to permit application 2023-0823-5085. basement: excavate crawl space to create additional storage room, convert south storage room to mechanical room. omit spiral stair and construct new 3rd stair and landing. first floor: relocate kitchen, relocate bedroom, create new exterior grade-levelDetails
revision to permit application 2023-0823-5085. basement: excavate crawl space to create additional storage room, convert south storage room to mechanical room. omit spiral stair and construct new 3rd stair and landing. first floor: relocate kitchen, relocate bedroom, create new exterior grade-level | $40,000 |
| Aug 23, 2023 | In progress issued Mar 2024 | 4121 20th St | Doran Construction & Design | basement: replace damaged footings, create foyer and interior stair to lower unit. 1st fl: remodel (e) unit, reconfigure entry doors. 2nd fl: lower ceiling height, remodel unit. 3rd fl: legalize habitable attic space & remodel unit & add dormers. exterior: replace windows in-kind wood atDetails
basement: replace damaged footings, create foyer and interior stair to lower unit. 1st fl: remodel (e) unit, reconfigure entry doors. 2nd fl: lower ceiling height, remodel unit. 3rd fl: legalize habitable attic space & remodel unit & add dormers. exterior: replace windows in-kind wood at | $700,000 |
| Aug 30, 2018 | Expired or cancelled cancelled Nov 2022 | 4121 20th St | comply with 201852211 residential build out of basement made part of unit above. remodel at all levels, kitchen, baths, 2 new dormers.habitable space at 3rd fl. ref pa# 2018-0619-2346.Details
comply with 201852211 residential build out of basement made part of unit above. remodel at all levels, kitchen, baths, 2 new dormers.habitable space at 3rd fl. ref pa# 2018-0619-2346. | $200,000 | |
| Jun 19, 2018 | Never finaled issued Jun 2018, no final | 4121 20th St | O'pro Construction Inc. | repair ground fl to comply with nov #201851021 & nov #201852211, install sheet rock for all walls and ceiling, install insulattion for all exterior inside house.Details
repair ground fl to comply with nov #201851021 & nov #201852211, install sheet rock for all walls and ceiling, install insulattion for all exterior inside house. | $8,000 |
| Mar 6, 2018 | Completed final sign-off Mar 2018 | 4121 20th St | O'pro Construction Inc. | to obtain final inspection for work apporved under pa# 201502269378/201408113496. all work is completeDetails
to obtain final inspection for work apporved under pa# 201502269378/201408113496. all work is complete | |
| Mar 11, 2015 | Never finaled issued Mar 2015, no final | 4121 20th St | street space permitDetails
street space permit | ||
| Feb 26, 2015 | Expired or cancelled expired Nov 2017 | 4121 20th St | Soil Engineering Construction | install new and reinforced concrete below existing foundation to create new basement area per boa decision 14-148Details
install new and reinforced concrete below existing foundation to create new basement area per boa decision 14-148 | $90,000 |
| Jan 22, 2015 | Expired or cancelled withdrawn Jun 2018 | 4121 20th St | install new retaining wall/footing in recently excavated basement area to create a new basement area. comply with complaint 201496161, nov 201488742, 201410821.Details
install new retaining wall/footing in recently excavated basement area to create a new basement area. comply with complaint 201496161, nov 201488742, 201410821. | $90,000 | |
| Nov 13, 2014 | Expired or cancelled withdrawn Jun 2018 | 4121 20th St | convert ground floor and attic floor into habitable spaces. kitchen and bathrooom remodel per plan. reconfigure floor layout per plan shown. replace all front windows. add dormer per plan. comply with nov 201496161.Details
convert ground floor and attic floor into habitable spaces. kitchen and bathrooom remodel per plan. reconfigure floor layout per plan shown. replace all front windows. add dormer per plan. comply with nov 201496161. | $30,000 | |
| Sep 25, 2014 | Never finaled issued Sep 2014, no final | 4121 20th St | Prado Construction Inc | remodel kitchen & bath- replace cabinets, light fixtures, plumbing fixtures, vanities, tiles, tolets, sink, kitchen appliances, countertop.Details
remodel kitchen & bath- replace cabinets, light fixtures, plumbing fixtures, vanities, tiles, tolets, sink, kitchen appliances, countertop. | $20,000 |
| Aug 11, 2014 | Never finaled issued Aug 2014, no final | 4121 20th St | Prado Construction Inc | increase basement ceiling height from 6' to 8' by excavating down and place new concrete slab. repair cracked plastering on 1st, 2nd, and 3rd flDetails
increase basement ceiling height from 6' to 8' by excavating down and place new concrete slab. repair cracked plastering on 1st, 2nd, and 3rd fl | $12,000 |
| Sep 22, 2004 | Never finaled issued Sep 2004, no final | 4121 20th St | Mac Naughton Builder, Inc. | replace existing wooden poetion of front exterior stairs. metal handrails to be revised. concrete **Details
replace existing wooden poetion of front exterior stairs. metal handrails to be revised. concrete ** | $6,000 |
Who worked here
Everyone with a license on these permits, by role, with how many permits each is on.
- Contractors
- Doran Construction & Design (4), O'pro Construction Inc. (2), Prado Construction Inc (2), Angeles Garcia Roofing Inc, Mac Naughton Builder, Inc., Soil Engineering Construction
- Architects
- Bryan Fox (4)
- Engineers
- Lawrence Wong (2), Horon Lee, Larry Wong
- Authorized agent-otherss
- Mark Bucciarelli
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