Mahlon Morse
- Listed as
- contractor, designer
- Firm
- Interior Renovations/Sf Renovations
- Based in
- San Francisco
- On San Francisco permits
- Feb 2000 to Apr 2026
58 permits since 2000 (contractor on 58 permits, designer on 1 permit): 49 completed, 1 in progress, 2 never finaled, 6 expired or cancelled.
This is the city’s permit record, not a license check: the role and the number come from what was written on each permit (the number spelled one way). It does not show whether the license is current. Their ranked record as a contractor is on their contractor page. How to read these records
Most recent permits
| Filed | Outcome | Address | Contractor | Work described on the permit | Declared cost |
|---|---|---|---|---|---|
| Apr 6, 2026 | In progress issued Apr 2026 | 506 11th Av | Interior Renovations/Sf Renovations | kitchen and bathroom. add (n) prime bath and reconfigure closets.Details
kitchen and bathroom. add (n) prime bath and reconfigure closets. | $42,000 |
| Dec 23, 2025 | Completed final sign-off Jan 2026 | 506 11th Av | Interior Renovations/Sf Renovations | revision 202410173184 to abate nov 202180480 - reduce scope of work from original permit to only include remove (e) unpermitted bathroom at rear. legalize deck (e).Details
revision 202410173184 to abate nov 202180480 - reduce scope of work from original permit to only include remove (e) unpermitted bathroom at rear. legalize deck (e). | $3,300 |
| Aug 19, 2025 | Completed final sign-off Dec 2025 | 2838 Union St | Interior Renovations/Sf Renovations | revision 202507080357- increase scope of work to include install insulation and sheetrock in adajacent bedroom. remove and replace (1) window and glass door with (2 side lights in kind. visible from street.Details
revision 202507080357- increase scope of work to include install insulation and sheetrock in adajacent bedroom. remove and replace (1) window and glass door with (2 side lights in kind. visible from street. | $9,000 |
| Jul 8, 2025 | Completed final sign-off Dec 2025 | 2838 Union St | Interior Renovations/Sf Renovations | in-kind remodeling of 1 bathroom(s) in 3rd fl with 0 shower pan(s).Details
in-kind remodeling of 1 bathroom(s) in 3rd fl with 0 shower pan(s). | $12,000 |
| Aug 24, 2022 | Completed final sign-off Jan 2023 | 1687 37th Av | Interior Renovations/Sf Renovations | addition of new powder room, furnace & water heater @ interior 1/f. legalize office in rear 1st floor.Details
addition of new powder room, furnace & water heater @ interior 1/f. legalize office in rear 1st floor. | $6,000 |
| Sep 17, 2020 | Completed final sign-off Dec 2020 | 234 10th Av | Interior Renovations/Sf Renovations | repair stucco facade, front stairs, replace garage door - stair repair is 50 percent or less - terazzo stoen to be replaced in kind.Details
repair stucco facade, front stairs, replace garage door - stair repair is 50 percent or less - terazzo stoen to be replaced in kind. | $27,000 |
| Feb 12, 2020 | Completed final sign-off May 2020 | 819 45th Av | Interior Renovations/Sf Renovations | remodel bath - remove & replace fixtures & finishes. add new 2x2 foot skylight.Details
remodel bath - remove & replace fixtures & finishes. add new 2x2 foot skylight. | $26,000 |
| Feb 12, 2020 | Completed final sign-off Jul 2020 | 2838 Union St | Interior Renovations/Sf Renovations | remove & replace rear yard bay windows.Details
remove & replace rear yard bay windows. | $12,000 |
| Dec 30, 2019 | Completed final sign-off Jan 2020 | 3348 Scott St | Interior Renovations/Sf Renovations | remove and replace existing 2nd floor rear deck. in kind, less than 50%. no plansDetails
remove and replace existing 2nd floor rear deck. in kind, less than 50%. no plans | $4,700 |
| Dec 26, 2019 | Completed final sign-off Mar 2021 | 3348 Scott St | Interior Renovations/Sf Renovations | replace all front windows/doors at upper levels with new all wood windows (casement & fixed picture) w/true divided lights to match original - all within existing openings. no other work under this permit.Details
replace all front windows/doors at upper levels with new all wood windows (casement & fixed picture) w/true divided lights to match original - all within existing openings. no other work under this permit. | $10,000 |
| Dec 6, 2019 | Completed final sign-off Oct 2021 | 18 Beaver St | Interior Renovations/Sf Renovations | remodeling (e) kitchen & bathroom by changing the layouts, adding a new mini bar area, new windows, to the light well, replacing (e) windows in kind, new fireplace & minor roof work based on new venting, some electrical work, no change on existing floor area. no structural & landing wall.Details
remodeling (e) kitchen & bathroom by changing the layouts, adding a new mini bar area, new windows, to the light well, replacing (e) windows in kind, new fireplace & minor roof work based on new venting, some electrical work, no change on existing floor area. no structural & landing wall. | $75,000 |
| Jul 29, 2019 | Completed final sign-off Jan 2020 | 1942 Eddy St | Interior Renovations/Sf Renovations | remodel (e) laundry room, relocate electrical, washer/dryerDetails
remodel (e) laundry room, relocate electrical, washer/dryer | $9,000 |
| Jul 29, 2019 | Completed final sign-off Dec 2019 | 234 10th Av | Interior Renovations/Sf Renovations | guest bath remodel, remove/replace fixtures & finishes, convert (e) tub to shower. no change of (e) floor plan).Details
guest bath remodel, remove/replace fixtures & finishes, convert (e) tub to shower. no change of (e) floor plan). | $23,000 |
| Dec 4, 2018 | Completed final sign-off Oct 2019 | 70 Carmelita St | Interior Renovations/Sf Renovations | replacement of existing door and window with new sliding doorDetails
replacement of existing door and window with new sliding door | $2,200 |
| Oct 9, 2018 | Completed final sign-off Feb 2019 | 234 10th Av | Interior Renovations/Sf Renovations | remodel powder room - remove & replace fixtures & finishes. 1/2 bathDetails
remodel powder room - remove & replace fixtures & finishes. 1/2 bath | $10,000 |
| Jul 24, 2018 | Completed final sign-off Sep 2018 | 2827 Union St | Interior Renovations/Sf Renovations | new skylight (2) at existing attic.Details
new skylight (2) at existing attic. | $2,000 |
| Jul 11, 2018 | Completed final sign-off Oct 2018 | 819 45th Av | Interior Renovations/Sf Renovations | new skylight at existing kitchen.Details
new skylight at existing kitchen. | $1,861 |
| Jun 13, 2018 | Completed final sign-off Oct 2018 | 819 45th Av | Interior Renovations/Sf Renovations | kitchen remodel - remove & replace fixtures & finishes.Details
kitchen remodel - remove & replace fixtures & finishes. | $27,000 |
| Mar 5, 2018 | Completed final sign-off Jul 2018 | 2838 Union St | Interior Renovations/Sf Renovations | rev app# 20801037741 expand master bath into (e) bedroom, remove and replace (2) windowsDetails
rev app# 20801037741 expand master bath into (e) bedroom, remove and replace (2) windows | $8,000 |
| Jan 3, 2018 | Completed final sign-off Nov 2018 | 2838 Union St | Interior Renovations/Sf Renovations | 2/f: bath remodel, remove/replace fixtures & finishes, add shower (no change of (e) layout)Details
2/f: bath remodel, remove/replace fixtures & finishes, add shower (no change of (e) layout) | $25,000 |
| Jun 16, 2017 | Completed final sign-off Oct 2017 | 2838 Union St | Interior Renovations/Sf Renovations | replace existing roof deck rail with new, open rail design, located at rear yard.Details
replace existing roof deck rail with new, open rail design, located at rear yard. | $4,000 |
| Apr 20, 2016 | Completed final sign-off Oct 2016 | 819 45th Av | Interior Renovations/Sf Renovations | addition to 1st floor below (e) living space new bedroom, bathroom & office on 1st floor. demo exterior staircase & add (n) interior stairs. (n) laundry room @ 1st floorDetails
addition to 1st floor below (e) living space new bedroom, bathroom & office on 1st floor. demo exterior staircase & add (n) interior stairs. (n) laundry room @ 1st floor | $106,500 |
| Jul 14, 2015 | Expired or cancelled cancelled Mar 2017 | 436 Corbett Av | Tom Can Construction, Interior Renovations/Sf Renovations | remove illegal unit from garage area. remove kitchen and legalize 1/2 bath. cap all utilities at source.Details
remove illegal unit from garage area. remove kitchen and legalize 1/2 bath. cap all utilities at source. | $5,000 |
| Jun 25, 2015 | Completed final sign-off Jun 2016 | 14 Guy Pl | Interior Renovations/Sf Renovations | bath remodel: remove and replace finishes and fixtures, no change on walls.Details
bath remodel: remove and replace finishes and fixtures, no change on walls. | $25,000 |
| Aug 4, 2014 | Completed final sign-off Sep 2014 | 3348 Scott St | Interior Renovations/Sf Renovations | to comply with cc 7725, no electric heat in buildingDetails
to comply with cc 7725, no electric heat in building | $600 |
| Jul 16, 2014 | Never finaled issued Aug 2014, no final | 49 Carmelita St | Interior Renovations/Sf Renovations | replace 3 wood frame double hung sash windows in kind; max u factor 0.32Details
replace 3 wood frame double hung sash windows in kind; max u factor 0.32 | $2,000 |
| May 6, 2014 | Completed final sign-off Jun 2015 | 49 Carmelita St | Interior Renovations/Sf Renovations | convert 725sf in (e) unfinished basement to living space; add tv/media room, office, 1 bahtroom & 3 closets.Details
convert 725sf in (e) unfinished basement to living space; add tv/media room, office, 1 bahtroom & 3 closets. | $28,000 |
| Jan 29, 2014 | Completed final sign-off Jun 2014 | 54 Palm Av | Interior Renovations/Sf Renovations | bath remodel - remove & replace vanity & sinks, add towel warmer. compliance with ordinance #155-13 not requiredDetails
bath remodel - remove & replace vanity & sinks, add towel warmer. compliance with ordinance #155-13 not required | $8,000 |
| Oct 7, 2013 | Completed final sign-off Jan 2014 | 580 Arkansas St | Interior Renovations/Sf Renovations | rear building:replace foundation and floor framing, raise building 12" max. exterior configuration remain unchanged.Details
rear building:replace foundation and floor framing, raise building 12" max. exterior configuration remain unchanged. | $9,000 |
| Aug 29, 2013 | Completed final sign-off Jan 2014 | 580 Arkansas St | Interior Renovations/Sf Renovations | rear building - exploratory work to find source of failing floor framing.Details
rear building - exploratory work to find source of failing floor framing. | $1,200 |
| Apr 3, 2013 | Completed final sign-off Aug 2013 | 14 Guy Pl | Interior Renovations/Sf Renovations | remove & replace kitchen cabinets & fixtures.Details
remove & replace kitchen cabinets & fixtures. | $20,000 |
| Nov 27, 2012 | Completed final sign-off Jun 2013 | 54 Palm Av | Interior Renovations/Sf Renovations | alter interior bearing and on bearing partitons, renovate kitchen fixtures and finishes, relocate 1 wc and 1 vanityDetails
alter interior bearing and on bearing partitons, renovate kitchen fixtures and finishes, relocate 1 wc and 1 vanity | $39,000 |
| Oct 15, 2012 | Completed final sign-off Jan 2013 | 145 Magnolia St | Interior Renovations/Sf Renovations | add laundry room & combine 2 (e) baths into 1 at level 2. remove 4 feet of non-bearing partition.Details
add laundry room & combine 2 (e) baths into 1 at level 2. remove 4 feet of non-bearing partition. | $27,500 |
| Sep 6, 2012 | Completed final sign-off Nov 2012 | 351 Leland Av | Interior Renovations/Sf Renovations | remove & replace kitchen cabinets, fixtures & finishes. replace existing 28"x44" window in kind. not visible from street. no change on walls and openings.Details
remove & replace kitchen cabinets, fixtures & finishes. replace existing 28"x44" window in kind. not visible from street. no change on walls and openings. | $27,000 |
| Apr 4, 2012 | Completed final sign-off Jun 2012 | 70 Clifford Tr | Interior Renovations/Sf Renovations | (n) enclose area at first floor under (e) building & laundry room for (n) storage room. no increase in building footprint.Details
(n) enclose area at first floor under (e) building & laundry room for (n) storage room. no increase in building footprint. | $4,744 |
| Aug 26, 2011 | Completed final sign-off Feb 2012 | 49 Carmelita St | Interior Renovations/Sf Renovations | renovating kitchen fixtures & finishes. renovate bathroom, (n) lighting comply cec 150(k), not moving or adding any walls, no structural work, provide carbon monoxide detector per code.Details
renovating kitchen fixtures & finishes. renovate bathroom, (n) lighting comply cec 150(k), not moving or adding any walls, no structural work, provide carbon monoxide detector per code. | $17,000 |
| May 17, 2011 | Completed final sign-off Oct 2011 | 3028 Buchanan St | Interior Renovations/Sf Renovations | demolishing 2 (e) brick chimneys & relocating/actering interior non bearing partitions, renovating kitchen fixtures & finishes. renovate bathroom.Details
demolishing 2 (e) brick chimneys & relocating/actering interior non bearing partitions, renovating kitchen fixtures & finishes. renovate bathroom. | $21,500 |
| Oct 25, 2010 | Completed final sign-off Dec 2010 | 32 Harwood Al | Interior Renovations/Sf Renovations | remove and replace kitchen cabinets, 1 sink. reposition hot water heater and stove. non stuctural work. provide air per cmc cm7. at least 50% high efficacy lighting kitchen by wattageDetails
remove and replace kitchen cabinets, 1 sink. reposition hot water heater and stove. non stuctural work. provide air per cmc cm7. at least 50% high efficacy lighting kitchen by wattage | $6,500 |
| Jun 10, 2010 | Never finaled issued Jun 2010, no final | 1942 Eddy St | Interior Renovations/Sf Renovations | dry/wet rot repair of extg rear deck constructed under app#8103467. less than 50% of structure. replace decking,may sister in joists, relace rotted planters/railingsDetails
dry/wet rot repair of extg rear deck constructed under app#8103467. less than 50% of structure. replace decking,may sister in joists, relace rotted planters/railings | $7,000 |
| Apr 23, 2010 | Completed final sign-off Jul 2010 | 6140 California St | Interior Renovations/Sf Renovations | remodel master bath to include removal of one non structural partition and remove and replace wc, sink, tub and shower. work on 3rd floor.Details
remodel master bath to include removal of one non structural partition and remove and replace wc, sink, tub and shower. work on 3rd floor. | $27,000 |
| Feb 11, 2010 | Completed final sign-off Mar 2010 | 1089 De Haro St | Interior Renovations/Sf Renovations | bathroom remodel to include removal of 1 non-structural partition, relcoate sink and wc, remove tub and replace with shower. all work on 2nd floor. provide high efficacy lights on "manual on" o.s. per t-24.Details
bathroom remodel to include removal of 1 non-structural partition, relcoate sink and wc, remove tub and replace with shower. all work on 2nd floor. provide high efficacy lights on "manual on" o.s. per t-24. | $2,600 |
| Nov 23, 2009 | Completed final sign-off Feb 2010 | 49 Carmelita St | Interior Renovations/Sf Renovations | remodel master bath room. replace tub with new shower. remove and replace wc and vanity. no wall removal. no structural work, new lighting & replace (e) exhaust fan , provide high efficancy lightsd or "manual on" occupancy sensor.Details
remodel master bath room. replace tub with new shower. remove and replace wc and vanity. no wall removal. no structural work, new lighting & replace (e) exhaust fan , provide high efficancy lightsd or "manual on" occupancy sensor. | $22,000 |
| Jan 17, 2006 | Expired or cancelled expired Dec 2006 | 2148 Steiner St | Interior Renovations/Sf Renovations | build 12 lin ft by 6' high side yard fence w/2 4x4 posts and lattice. 2x6 capDetails
build 12 lin ft by 6' high side yard fence w/2 4x4 posts and lattice. 2x6 cap | $650 |
| May 17, 2005 | Completed final sign-off Sep 2005 | 1874 Fell St | Interior Renovations/Sf Renovations | renovation to existing kitchen cabinets & fixtures, renew expired permit to continue work approvd unDetails
renovation to existing kitchen cabinets & fixtures, renew expired permit to continue work approvd un | $10,000 |
| Mar 21, 2005 | Completed final sign-off Apr 2005 | 743 14th Av | Interior Renovations/Sf Renovations | remove and replace in kind furnace, hotwater heater countertops, appliances/one windowDetails
remove and replace in kind furnace, hotwater heater countertops, appliances/one window | $6,500 |
| Sep 7, 2004 | Completed final sign-off Nov 2004 | 1942 Eddy St | Interior Renovations/Sf Renovations | bathroom remodel, replace tub with shower, new fixtures, and finishesDetails
bathroom remodel, replace tub with shower, new fixtures, and finishes | $8,500 |
| May 26, 2004 | Expired or cancelled expired Jan 2005 | 1874 Fell St | Interior Renovations/Sf Renovations | renovation to existing kitchen, cabinets, and fixturesDetails
renovation to existing kitchen, cabinets, and fixtures | $20,000 |
| Apr 2, 2003 | Completed final sign-off Apr 2003 | 3350 Scott St | Interior Renovations/Sf Renovations | renew expired permit app for final inspection 20020805509 &20020812536Details
renew expired permit app for final inspection 20020805509 &20020812536 | |
| Jan 24, 2003 | Completed final sign-off Feb 2003 | 3967 Clay St | Interior Renovations/Sf Renovations | renew app #200203252105Details
renew app #200203252105 | |
| Oct 4, 2002 | Completed final sign-off Apr 2003 | 3350 Scott St | Interior Renovations/Sf Renovations | rev. appl#w20020812536 & w20020805509, increase valuation $22,000, provide (n) header @doorway masteDetails
rev. appl#w20020812536 & w20020805509, increase valuation $22,000, provide (n) header @doorway maste | $22,000 |
| Aug 12, 2002 | Expired or cancelled expired Apr 2003 | 3348 Scott St | Interior Renovations/Sf Renovations | remove and replace wall finishes and reconfigure fixtures.Details
remove and replace wall finishes and reconfigure fixtures. | $2,700 |
| Aug 5, 2002 | Expired or cancelled expired Apr 2003 | 3348 Scott St | Interior Renovations/Sf Renovations | remove and replace wall finishes and fixturesDetails
remove and replace wall finishes and fixtures | $5,200 |
| Mar 25, 2002 | Expired or cancelled expired Feb 2003 | 3967 Clay St | Interior Renovations/Sf Renovations | remove & replace wall finishes & fixtures in kitchen. replace counter tops & cabinets.Details
remove & replace wall finishes & fixtures in kitchen. replace counter tops & cabinets. | $15,000 |
| Feb 27, 2002 | Completed final sign-off Feb 2003 | 3967 Clay St | Interior Renovations/Sf Renovations | remove and replace wall finishes and fixtures in master and guest bathroomsDetails
remove and replace wall finishes and fixtures in master and guest bathrooms | $30,000 |
| Oct 15, 2001 | Completed final sign-off Nov 2001 | 2211 Broderick St | Interior Renovations/Sf Renovations | remove & replace existing french doors and rear stair & landing to backyard, like in kind replace/stDetails
remove & replace existing french doors and rear stair & landing to backyard, like in kind replace/st | $2,000 |
| Oct 1, 2001 | Completed final sign-off Nov 2001 | 2211 Broderick St | Interior Renovations/Sf Renovations | add support to (e) beam at rear bay windows, replace 1 (e) beam w/same, (e)rotted rear landing/stairDetails
add support to (e) beam at rear bay windows, replace 1 (e) beam w/same, (e)rotted rear landing/stair | $6,000 |
| Sep 7, 2001 | Completed final sign-off Dec 2001 | 19 Roscoe St | Interior Renovations/Sf Renovations | remodel (e) kitchen, remove & replace wall, floor & ceiling finishes, new cabinets & appliancesDetails
remodel (e) kitchen, remove & replace wall, floor & ceiling finishes, new cabinets & appliances | $10,300 |
| Feb 2, 2000 | Completed final sign-off Feb 2000 | 44 Sequoia Wy | Interior Renovations/Sf Renovations | remove existing 6 foot window on west back yard side of houseDetails
remove existing 6 foot window on west back yard side of house |