Xl Construction, Corporation
- Based in
- Milpitas
- On San Francisco permits
- Feb 2005 to May 2026
- Last 24 months
- 5 permits filed
56 permits since 2000: 50 completed, 4 in progress, 2 never finaled.
Of the 2 never-finaled permits, 2 are 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 |
|---|---|---|---|---|
| May 28, 2026 | In progress issued Jun 2026 | 1800 Owens St | revision to 202602266592. revised floor plan and associated mepDetails
revision to 202602266592. revised floor plan and associated mep | $65,000 |
| Apr 15, 2026 | In progress issued Apr 2026 | 1800 Owens St | 6/fl- deffered structural for equipment anchorageDetails
6/fl- deffered structural for equipment anchorage | |
| Feb 26, 2026 | In progress issued Apr 2026 | 1800 Owens St | 6th fl, sector 2b ti for mri suiteDetails
6th fl, sector 2b ti for mri suite | $6,100,500 |
| Jan 12, 2026 | Completed final sign-off Feb 2026 | 1800 Owens St | 6/f: interior non-structural demo only per ab-017.Details
6/f: interior non-structural demo only per ab-017. | $50,000 |
| Jun 12, 2025 | In progress issued Jul 2025 | 1800 Owens St | level 8 and level 9, 2 new privacy pods on level 8. 3 new privacy pods on level 9. the installation of these pods include associated structural, electrical & sprinkler installation defered.Details
level 8 and level 9, 2 new privacy pods on level 8. 3 new privacy pods on level 9. the installation of these pods include associated structural, electrical & sprinkler installation defered. | $50,000 |
| Aug 3, 2022 | Completed final sign-off Oct 2022 | 1800 Owens St | evacuation map for floor 8-12 sector 1Details
evacuation map for floor 8-12 sector 1 | $3,000 |
| Aug 1, 2022 | Completed final sign-off Aug 2024 | 1800 Owens St | tenant improvement on the 4th and 5th floors of an existing 12-story building. scope of work includes office and labratories (changing occupancy from b to l) with associated mechancial, plumbing, and electrical requirements.Details
tenant improvement on the 4th and 5th floors of an existing 12-story building. scope of work includes office and labratories (changing occupancy from b to l) with associated mechancial, plumbing, and electrical requirements. | $6,000,000 |
| Jul 25, 2022 | Completed final sign-off Mar 2024 | 1800 Owens St | selective demo in preparation for t.i of the 4-7th floor in sector 1 of an (e) 12-story bldg. no structural demo. to comply with ab-017.Details
selective demo in preparation for t.i of the 4-7th floor in sector 1 of an (e) 12-story bldg. no structural demo. to comply with ab-017. | $125,000 |
| Jul 18, 2022 | Completed final sign-off Aug 2024 | 1800 Owens St | level 6-7: addition of shafts and duct riser only in sector 1 of building.Details
level 6-7: addition of shafts and duct riser only in sector 1 of building. | $250,000 |
| Jul 18, 2022 | Completed final sign-off Aug 2024 | 1800 Owens St | level 4-5: addition of shafts and duct riser only in sector 1 of building.Details
level 4-5: addition of shafts and duct riser only in sector 1 of building. | $240,000 |
| Nov 29, 2021 | Completed final sign-off May 2022 | 1800 Owens St | 7th floor: shaft enclusures at 7th floor.minor t.i. for future work.Details
7th floor: shaft enclusures at 7th floor.minor t.i. for future work. | $5,000 |
| Oct 21, 2021 | Completed final sign-off May 2022 | 1800 Owens St | levels 8 + 9. work includes (n) huddles rooms break room, shaft connections (for future use) + associated finishes + mepDetails
levels 8 + 9. work includes (n) huddles rooms break room, shaft connections (for future use) + associated finishes + mep | |
| Sep 1, 2021 | Completed final sign-off Dec 2021 | 455 Mission Bay Blvd South | t.i. adding non bearing partitions, fixtures, mep. fire suppression under separate permit. ref partial t.i. work on 5th fl 2020 1222 1526.Details
t.i. adding non bearing partitions, fixtures, mep. fire suppression under separate permit. ref partial t.i. work on 5th fl 2020 1222 1526. | $755,762 |
| Aug 16, 2021 | Completed final sign-off Aug 2022 | 1800 Owens St | addition of shafts on floors 10, 11, &12 of the buildingDetails
addition of shafts on floors 10, 11, &12 of the building | $250,000 |
| Aug 2, 2021 | Completed final sign-off Nov 2022 | 1800 Owens St | t.i.build out & change of use on the 10th,11th & 12th floors (all in sector)scope of work include office & laboratories (l occupancy)with associated mechanical, plumbing & electrical requirements.Details
t.i.build out & change of use on the 10th,11th & 12th floors (all in sector)scope of work include office & laboratories (l occupancy)with associated mechanical, plumbing & electrical requirements. | $10,000,000 |
| Jul 16, 2021 | Never finaled issued Jul 2021, no final | 455 Mission Bay Blvd South | addition of 0,2 depletion sensors @ 1/f & 5/f gas storage areas associated w/(e) compressed gas distribution system under bpa#202106031593 & t.i. permit 202012221526Details
addition of 0,2 depletion sensors @ 1/f & 5/f gas storage areas associated w/(e) compressed gas distribution system under bpa#202106031593 & t.i. permit 202012221526 | $2,000 |
| Jun 3, 2021 | Completed final sign-off Jun 2021 | 455 Mission Bay Blvd South | modification to e compressed gas distribution system serving ti under 202012221526. modification includes (n) piping runs from (e) storage room at level 1 to renovated areas at level 5Details
modification to e compressed gas distribution system serving ti under 202012221526. modification includes (n) piping runs from (e) storage room at level 1 to renovated areas at level 5 | $1,000 |
| May 11, 2021 | Never finaled issued May 2021, no final | 1800 Owens St | revisions to pa# 201909121454 & 201909121458. minor revisions to 8th & 9th fl consisting of new huddle rooms, breakrooms, finishes, millwork, cieling & associated electrical, mechanical & plumbing work. maher na.Details
revisions to pa# 201909121454 & 201909121458. minor revisions to 8th & 9th fl consisting of new huddle rooms, breakrooms, finishes, millwork, cieling & associated electrical, mechanical & plumbing work. maher na. | |
| Apr 14, 2021 | Completed final sign-off Jan 2022 | 1800 Owens St | 10/f,11/f,12/f - selective demo in preparation for tenant improcements. soft demo does not include structural demo or demo of rated construction needed to maintain core x shell conditions for life safety per ab-017.Details
10/f,11/f,12/f - selective demo in preparation for tenant improcements. soft demo does not include structural demo or demo of rated construction needed to maintain core x shell conditions for life safety per ab-017. | $60,000 |
| Dec 22, 2020 | Completed final sign-off Jun 2021 | 455 Mission Bay Blvd South | 5th fl: tenant improvement. fire suppression system under sep permit. deffered fire sprinklers & life safety system to remain operational during construction and alterations to be system will be design build.Details
5th fl: tenant improvement. fire suppression system under sep permit. deffered fire sprinklers & life safety system to remain operational during construction and alterations to be system will be design build. | $850,000 |
| Aug 15, 2019 | Completed final sign-off Apr 2021 | 455 Mission Bay Blvd South | 5th flr lab/freezer storage only - interior demo. non structural demo only of non rated construction per ab017, space to remain vacant until accessible features are restored.Details
5th flr lab/freezer storage only - interior demo. non structural demo only of non rated construction per ab017, space to remain vacant until accessible features are restored. | $12,000 |
| Apr 29, 2019 | Completed final sign-off Aug 2019 | 360 03rd St | revision to 201901281353 to provide structural drawings and calculations for equip weighing over 450 lbs. inclucing manifold system. ups support system and fishtank support as shown on ti permit,maher not reqDetails
revision to 201901281353 to provide structural drawings and calculations for equip weighing over 450 lbs. inclucing manifold system. ups support system and fishtank support as shown on ti permit,maher not req | |
| Apr 4, 2019 | Completed final sign-off Jan 2020 | 939 Ellis St | 5th fl - mep for tenant improvement ref pa 2019-0319-5584Details
5th fl - mep for tenant improvement ref pa 2019-0319-5584 | $500,000 |
| Apr 4, 2019 | Completed final sign-off Jan 2020 | 939 Ellis St | 7th fl - mep for tenant improvement ref pa 2019-0319-5583Details
7th fl - mep for tenant improvement ref pa 2019-0319-5583 | $500,000 |
| Mar 22, 2019 | Completed final sign-off May 2021 | 1700 California St | (n) generator at level g5. sffd requested this permit be submitted separately from pa# 2018-1205-7469. which it orignally was part. payment for this permit is under first permit. generator for kaiser office space.** maher n/a**Details
(n) generator at level g5. sffd requested this permit be submitted separately from pa# 2018-1205-7469. which it orignally was part. payment for this permit is under first permit. generator for kaiser office space.** maher n/a** | |
| Mar 19, 2019 | Completed final sign-off Jan 2020 | 939 Ellis St | 5th fl project consist of buildout of 1 floor of leased warm shell space. program includes counselor offices, group therapy rooms, reception and staff support spaces mep deferred maher not reqDetails
5th fl project consist of buildout of 1 floor of leased warm shell space. program includes counselor offices, group therapy rooms, reception and staff support spaces mep deferred maher not req | $883,000 |
| Mar 19, 2019 | Completed final sign-off Jan 2020 | 939 Ellis St | 7th fl build out of 1 floor leased warm shell space. program includes counselor offices, group therapy rooms, reception and staff support spaces. mep defered non osh facilityDetails
7th fl build out of 1 floor leased warm shell space. program includes counselor offices, group therapy rooms, reception and staff support spaces. mep defered non osh facility | $883,000 |
| Mar 13, 2019 | Completed final sign-off Jan 2020 | 939 Ellis St | 6th floor: mechanical, electrical and plumbing for 201903114897Details
6th floor: mechanical, electrical and plumbing for 201903114897 | $567,000 |
| Mar 11, 2019 | Completed final sign-off Jan 2020 | 939 Ellis St | 6th flr - this project consist of buildout of one floor of leased warm shell space. program includes councilor offices; therapy room, reception area and staff support spaces. mepDetails
6th flr - this project consist of buildout of one floor of leased warm shell space. program includes councilor offices; therapy room, reception area and staff support spaces. mep | $883,000 |
| Jan 28, 2019 | Completed final sign-off Aug 2019 | 360 03rd St | 7th fl - ti of office to include non structural improvement of office area, break room (no food service), mep improvement. sprinkler, & fire safety under separate permit. no exterior workDetails
7th fl - ti of office to include non structural improvement of office area, break room (no food service), mep improvement. sprinkler, & fire safety under separate permit. no exterior work | $7,273,098 |
| Dec 6, 2018 | Completed final sign-off Jun 2019 | 360 03rd St | interior soft demo on 7th floor office space. approx 26,500 sf. no exterior work, no cou, sprinkler permit under sep permitDetails
interior soft demo on 7th floor office space. approx 26,500 sf. no exterior work, no cou, sprinkler permit under sep permit | $100,000 |
| Dec 5, 2018 | Completed final sign-off Nov 2020 | 1700 California St | (4th & 2nd flrs, g5 & g2) ti of (e) office space. (n) outpatient ivf and reproductive med office clinic. (n) fuel port installation & (n) mechanical unit. (non-oshpd3 review) (fire alarm & sprinklers under separate permit) structural included. ((n) generator under separate permit)Details
(4th & 2nd flrs, g5 & g2) ti of (e) office space. (n) outpatient ivf and reproductive med office clinic. (n) fuel port installation & (n) mechanical unit. (non-oshpd3 review) (fire alarm & sprinklers under separate permit) structural included. ((n) generator under separate permit) | $2,400,000 |
| Nov 6, 2018 | Completed final sign-off May 2019 | 360 03rd St | demo per ab-017 of 29,500 sf of (e) offices in ste 700 partitions, electrical, data cabling, ceilings, and flooring to be removed, temp const. barrier to be provided between ste 700 & 750, mep is design-build, fire sprinklers & life safety to remain operational, defered sprinkler to beDetails
demo per ab-017 of 29,500 sf of (e) offices in ste 700 partitions, electrical, data cabling, ceilings, and flooring to be removed, temp const. barrier to be provided between ste 700 & 750, mep is design-build, fire sprinklers & life safety to remain operational, defered sprinkler to be | $5,000 |
| Oct 28, 2015 | Completed final sign-off Apr 2016 | 343 Sansome St | 5th floor, suite 505: interior ti of (e) office maher na replace finishes, demo partition walls, replace suite entry door, add eating counter and casework.Details
5th floor, suite 505: interior ti of (e) office maher na replace finishes, demo partition walls, replace suite entry door, add eating counter and casework. | $42,000 |
| Oct 9, 2015 | Completed final sign-off Aug 2016 | 1 Daniel Burnham Ct | exploratory demo: to verify low voltage wiring & plumbing line location; no structural work under this permit.Details
exploratory demo: to verify low voltage wiring & plumbing line location; no structural work under this permit. | $8,000 |
| Mar 2, 2015 | Completed final sign-off Jun 2015 | 555 California St | 2nd and 3rd floor: show location of card reader locations on egress drawings per fire dept. ref. appl. 201406279698 & 201406279703. maher n/a. card readers were shown/approved under bpa#201406279698Details
2nd and 3rd floor: show location of card reader locations on egress drawings per fire dept. ref. appl. 201406279698 & 201406279703. maher n/a. card readers were shown/approved under bpa#201406279698 | |
| Jan 9, 2015 | Completed final sign-off Jun 2015 | 555 California St | 2nd floor -revision to pa #2014.1029.0262 & 2014.0808.3436: changes include incorporation of (n) shear walls & video monitors. mep under separate permit. n/a maher ordinanceDetails
2nd floor -revision to pa #2014.1029.0262 & 2014.0808.3436: changes include incorporation of (n) shear walls & video monitors. mep under separate permit. n/a maher ordinance | |
| Oct 30, 2014 | Completed final sign-off Dec 2014 | 555 California St | 1st floor - temperary removal and replacement in kind of (e) ceilings to inspect new plumbing infrastructural needed as point of the work associated with bldg. appl. 2014.0627.9698. haher n/a.Details
1st floor - temperary removal and replacement in kind of (e) ceilings to inspect new plumbing infrastructural needed as point of the work associated with bldg. appl. 2014.0627.9698. haher n/a. | $10,000 |
| Oct 29, 2014 | Completed final sign-off Jun 2015 | 555 California St | revision to app#201408083436. changes include change from glass guardrail to cable rail and incorporation of a smoke curtain. n/a for the maher.Details
revision to app#201408083436. changes include change from glass guardrail to cable rail and incorporation of a smoke curtain. n/a for the maher. | |
| Oct 29, 2014 | Completed final sign-off Apr 2015 | 555 California St | revision to app#201406279703. revision to conference room change from non rated to rated partition at corridor b and minor plant ceiling revisions in response to field conditions and client request. n/a for the maher.Details
revision to app#201406279703. revision to conference room change from non rated to rated partition at corridor b and minor plant ceiling revisions in response to field conditions and client request. n/a for the maher. | |
| Oct 29, 2014 | Completed final sign-off Apr 2015 | 555 California St | 2/f: revision to app#201406279698. revisions include minor plan and ceiling revisions in response to field conditions and client requests and incorporation of cold formed framing details. n/a for the maher.Details
2/f: revision to app#201406279698. revisions include minor plan and ceiling revisions in response to field conditions and client requests and incorporation of cold formed framing details. n/a for the maher. | |
| Aug 8, 2014 | Completed final sign-off Jun 2015 | 555 California St | (n) connecting stair between 2nd & 3rd floors for tenant. revision to t.i. permits 2014-0627-9698 & 2014-0627-9703. draft curtains and sprinklers under sep. permit maher n/aDetails
(n) connecting stair between 2nd & 3rd floors for tenant. revision to t.i. permits 2014-0627-9698 & 2014-0627-9703. draft curtains and sprinklers under sep. permit maher n/a | $140,000 |
| Jun 27, 2014 | Completed final sign-off Apr 2015 | 555 California St | 2nd flr: approx 19000 sq.ft. tenant improvement of a class "a"office space on the 2nd flr including private offices, meeting rooms & powered workstations, construction of (n) pantries, restrooms, & conference rms, no structural work,no exterior work; maher n/a /aDetails
2nd flr: approx 19000 sq.ft. tenant improvement of a class "a"office space on the 2nd flr including private offices, meeting rooms & powered workstations, construction of (n) pantries, restrooms, & conference rms, no structural work,no exterior work; maher n/a /a | $2,500,000 |
| Jun 27, 2014 | Completed final sign-off Jun 2015 | 555 California St | 3rd flr: t.i. of approx 24,650 sq.ft. for office space incl private offices, meeting rms & powered work stations,work includes (n) pantries, restrooms, closets, and (2) large conference rms, (accessory a2 occupancies, no structural or exterior work;maher n/aDetails
3rd flr: t.i. of approx 24,650 sq.ft. for office space incl private offices, meeting rms & powered work stations,work includes (n) pantries, restrooms, closets, and (2) large conference rms, (accessory a2 occupancies, no structural or exterior work;maher n/a | $2,500,000 |
| Apr 22, 2014 | Completed final sign-off Dec 2014 | 120 Kearny St | revised layout of restroom partitions per pa# 201403120525Details
revised layout of restroom partitions per pa# 201403120525 | |
| Apr 22, 2014 | Completed final sign-off Dec 2014 | 120 Kearny St | revised layout of restroom partitons per pa # 201403110475Details
revised layout of restroom partitons per pa # 201403110475 | |
| Apr 15, 2014 | Completed final sign-off Jul 2015 | 120 Kearny St | 19th floor: revision to app#201403120525. construction of structural partitions and finishes. n/a for the maher ordinance #155-13 mep, fire alarm and sprinklers separate permit.Details
19th floor: revision to app#201403120525. construction of structural partitions and finishes. n/a for the maher ordinance #155-13 mep, fire alarm and sprinklers separate permit. | |
| Mar 12, 2014 | Completed final sign-off Sep 2014 | 120 Kearny St | 19th floor:demolition of extg non-structural interior partitions, doors, frames, hardware, millwork, ceilings, finishes, mep, construction of non-structural partitions, doors, frames, hardware, millwork, acoustical ceiling, finishes. mep deferred submittal for life-safty.Details
19th floor:demolition of extg non-structural interior partitions, doors, frames, hardware, millwork, ceilings, finishes, mep, construction of non-structural partitions, doors, frames, hardware, millwork, acoustical ceiling, finishes. mep deferred submittal for life-safty. | $1,375,000 |
| Mar 11, 2014 | Completed final sign-off Sep 2014 | 120 Kearny St | 20/f-demol (e) non-structural int partitoins in restroom,doors,frames, hardware,millwork,ceiling, finishes, mep. construction of non-structural partitions, doors, frames, hardware, millwrok & acoustical ceiling, finishes, mep deferred submittal for life - safety. n/a compliance w/ordinance #155-13Details
20/f-demol (e) non-structural int partitoins in restroom,doors,frames, hardware,millwork,ceiling, finishes, mep. construction of non-structural partitions, doors, frames, hardware, millwrok & acoustical ceiling, finishes, mep deferred submittal for life - safety. n/a compliance w/ordinance #155-13 | $1,375,000 |
| Mar 4, 2014 | Completed final sign-off Sep 2014 | 1 Montgomery St | selective demolition of acoustical ceilings, existing mechanical ductwork, light fixtures and drywall partitions. scope of work on 19th and 20th floors. demo per ab-017.Details
selective demolition of acoustical ceilings, existing mechanical ductwork, light fixtures and drywall partitions. scope of work on 19th and 20th floors. demo per ab-017. | $150,000 |
| Jan 22, 2014 | Completed final sign-off Jun 2014 | 1580 Valencia St | suite #802- remodel of 2 suites into one large suite, provide accessible exams and corridors. life safety permits separate compliance with ordinance #155-13 not required.Details
suite #802- remodel of 2 suites into one large suite, provide accessible exams and corridors. life safety permits separate compliance with ordinance #155-13 not required. | $493,000 |
| Apr 7, 2009 | Completed final sign-off Jul 2010 | 755 Ashbury St | remove/replace existing fire exit stair w/ a code compliant exit stair, removal of (e) windows on 3rd & 4th floor, to be replaced w/ egress doors, removal/replace of (e) egress doors on 2nd floor, relocat of ladder to roof, removel a reconfiguration of interior partitions & classrm doors,Details
remove/replace existing fire exit stair w/ a code compliant exit stair, removal of (e) windows on 3rd & 4th floor, to be replaced w/ egress doors, removal/replace of (e) egress doors on 2nd floor, relocat of ladder to roof, removel a reconfiguration of interior partitions & classrm doors, | $150,000 |
| Apr 11, 2006 | Completed final sign-off Jul 2006 | 270 Masonic Av | revision to approved pa# 2006/03/23/7367. new 3'-0" high x 12" wide buttress @ 7'-2 1/2" o.c. attached to (e) concrete retaining wall.Details
revision to approved pa# 2006/03/23/7367. new 3'-0" high x 12" wide buttress @ 7'-2 1/2" o.c. attached to (e) concrete retaining wall. | $2,000 |
| Mar 23, 2006 | Completed final sign-off Jul 2006 | 270 Masonic Av | add to (e) permit: new structurals foundation for owners equipment (condensers for freezer s) owners requipment condenser units to be under separate permit.Details
add to (e) permit: new structurals foundation for owners equipment (condensers for freezer s) owners requipment condenser units to be under separate permit. | $8,000 |
| Mar 16, 2006 | Completed final sign-off Jun 2006 | 270 Masonic Av | revise 200511228850, 200601313445. install walk in freezer and piping (new). sprinkler under separte permitDetails
revise 200511228850, 200601313445. install walk in freezer and piping (new). sprinkler under separte permit | $95,000 |
| Feb 3, 2005 | Completed final sign-off May 2005 | 270 Masonic Av | minor modifications to appl#200405113517 increase in interior ramp length due to scope(from 18'to19'Details
minor modifications to appl#200405113517 increase in interior ramp length due to scope(from 18'to19' | $11,000 |