Matthew Wang
- Listed as
- architect, authorized agent-others, engineer, lessee
- Firm
- Ctw Mechanical
- Based in
- San Francisco
- On San Francisco permits
- Dec 2005 to Jun 2026
60 permits since 2000 (engineer on 56 permits, architect on 3 permits, authorized agent-others on 1 permit, lessee on 1 permit): 45 completed, 5 in progress, 7 never finaled, 3 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. How to read these records
Most recent permits
| Filed | Outcome | Address | Contractor | Work described on the permit | Declared cost |
|---|---|---|---|---|---|
| Jun 15, 2026 | In progress issued Jun 2026 | 1030 Illinois St | C T W Mechanical | add one type i hood to (e) kitchen, install two split type heatpumps an exhaust fanDetails
add one type i hood to (e) kitchen, install two split type heatpumps an exhaust fan | $45,000 |
| May 20, 2026 | In progress issued Jun 2026 | 1043 Stockton St | C T W Mechanical | new store front and ada restroom, build new kitchen with new type 1 hood with exhaust fan and make up fan, new ductless heat lampDetails
new store front and ada restroom, build new kitchen with new type 1 hood with exhaust fan and make up fan, new ductless heat lamp | $250,000 |
| Mar 12, 2026 | In progress issued Apr 2026 | 2475 03rd St | Dajani Construction | suite #269: tenant improvement renovation of an existing 2058 sqft space into research laboratoryDetails
suite #269: tenant improvement renovation of an existing 2058 sqft space into research laboratory | $75,000 |
| Dec 19, 2025 | Completed final sign-off Mar 2026 | 100 Larkin St | Svala Construction Inc | installation of safety floor grilles at selected floor openings on 3rd and 4th floor of main library. floor grilles are a safety measure to prevent people from jumping off the (e) guard rails.Details
installation of safety floor grilles at selected floor openings on 3rd and 4th floor of main library. floor grilles are a safety measure to prevent people from jumping off the (e) guard rails. | $175,000 |
| Dec 10, 2025 | In progress issued Dec 2025 | 2415 03rd St | C T W Mechanical | suite 257-267: install four split heatpump systemsDetails
suite 257-267: install four split heatpump systems | $79,000 |
| Nov 10, 2025 | Completed final sign-off Apr 2026 | 1117 Market St | Amone Corp | new rooftop unit & 2 split fancoil system to replace removed existing heating systems. new exhaust fan. deferred pa#; 202308033645Details
new rooftop unit & 2 split fancoil system to replace removed existing heating systems. new exhaust fan. deferred pa#; 202308033645 | $75,000 |
| Nov 5, 2024 | Completed final sign-off Jul 2026 | 2937 24th St | Ren Lei Construction Co | renovation of (e) bakery/limited restaurant and new equipment, lighting, hvac plumving, electrical finishes, accessible lift and accessible restroom. no exterior changes. not a change of use.Details
renovation of (e) bakery/limited restaurant and new equipment, lighting, hvac plumving, electrical finishes, accessible lift and accessible restroom. no exterior changes. not a change of use. | $175,000 |
| Oct 22, 2024 | Completed final sign-off May 2025 | 2608 Ocean Av | C T W Mechanical | install 2 type 1 hoods, fans and make-up air fan, install (n) cooking equipment and pony wall. relocate (e) hand sinkDetails
install 2 type 1 hoods, fans and make-up air fan, install (n) cooking equipment and pony wall. relocate (e) hand sink | $75,000 |
| Jul 17, 2024 | Completed final sign-off Apr 2026 | 2650 Ocean Av | Applied General Construction Inc | prop h - tenant improvement to install a new restaurant on a vacant building. the floor area is 4400 sqft.Details
prop h - tenant improvement to install a new restaurant on a vacant building. the floor area is 4400 sqft. | $350,000 |
| May 23, 2024 | Completed final sign-off May 2025 | 2343 03rd St | C T W Mechanical | ste 330: install split system heatpump for humidity control. condensing unit on roofDetails
ste 330: install split system heatpump for humidity control. condensing unit on roof | $15,000 |
| Mar 21, 2024 | Completed final sign-off Feb 2025 | 1242 Stockton St | C T W Mechanical | ti for restaurant to replace 4 (e) hoods, remodel restroom to be ada complaint, and widen front entrance doorDetails
ti for restaurant to replace 4 (e) hoods, remodel restroom to be ada complaint, and widen front entrance door | $180,000 |
| Mar 8, 2024 | Completed final sign-off Oct 2024 | 295 Divisadero St | Wong Construction Inc, C T W Mechanical | install general ventilation system, remodel kitchen & bar.Details
install general ventilation system, remodel kitchen & bar. | $150,000 |
| Mar 29, 2023 | Completed final sign-off Sep 2023 | 42 Columbus Av | C T W Mechanical | renovate e kitchen with new hood and equipment. install exhaust fan and makeup unitDetails
renovate e kitchen with new hood and equipment. install exhaust fan and makeup unit | $160,000 |
| Mar 29, 2023 | Completed final sign-off Aug 2023 | 555 02nd St | C T W Mechanical | replace existing heatpump with new split high efficiency heatpump system 900 sfDetails
replace existing heatpump with new split high efficiency heatpump system 900 sf | $15,000 |
| Feb 27, 2023 | Completed final sign-off Sep 2023 | 345 Taraval St | C T W Mechanical | re-install hood, exhaust fan and install new make-up air unit.Details
re-install hood, exhaust fan and install new make-up air unit. | $12,000 |
| Jan 12, 2023 | Completed final sign-off Aug 2023 | 555 02nd St | C T W Mechanical | remove (e) type i hood, exhaust fan, take up air unit & replace w/newDetails
remove (e) type i hood, exhaust fan, take up air unit & replace w/new | $20,000 |
| Dec 6, 2022 | Completed final sign-off Mar 2023 | 4100 03rd St | C T W Mechanical | install stainless steel exhaust duct for coffee roaster.Details
install stainless steel exhaust duct for coffee roaster. | $3,500 |
| Sep 29, 2022 | Completed final sign-off Dec 2023 | 2475 03rd St | C T W Mechanical | space 253 - install 2 coils and condensers for two (e) furnances install 1 split type heat pump for (e) conference roomDetails
space 253 - install 2 coils and condensers for two (e) furnances install 1 split type heat pump for (e) conference room | $20,000 |
| Sep 28, 2022 | Completed final sign-off Dec 2022 | 822 Irving St | C T W Mechanical | replace existing kitchen exhaust fan with new for restaurant.Details
replace existing kitchen exhaust fan with new for restaurant. | $6,000 |
| May 31, 2022 | In progress issued Nov 2024 | 2149 Chestnut St | C T W Mechanical | install type 1 hood, exhaust fan and make up air fan.Details
install type 1 hood, exhaust fan and make up air fan. | $20,000 |
| May 31, 2022 | Completed final sign-off Jul 2022 | 5214 Diamond Heights Bl | C T W Mechanical | add new sushi bar in (e) dining room. ste aDetails
add new sushi bar in (e) dining room. ste a | $10,000 |
| May 4, 2022 | Never finaled issued May 2022, no final | 3318 Fillmore St | C T W Mechanical | install new 12' type i hood, exhaust fan and make up air fan.Details
install new 12' type i hood, exhaust fan and make up air fan. | $20,000 |
| Apr 19, 2022 | Completed final sign-off Jan 2023 | 4601 Geary Bl | C T W Mechanical | install type 2 hood with exhaust fan & make up air fan.Details
install type 2 hood with exhaust fan & make up air fan. | $5,000 |
| Apr 4, 2022 | Completed final sign-off Apr 2023 | 1319 20th Av | O'pro Construction Inc. | change of use from b to e. adding a staff bathroom and a children's bathroom. adding staff breakroom. adding fire corridor. updating plumbing and electric as needed.Details
change of use from b to e. adding a staff bathroom and a children's bathroom. adding staff breakroom. adding fire corridor. updating plumbing and electric as needed. | $199,000 |
| Feb 23, 2022 | Completed final sign-off Feb 2023 | 2295 03rd St | C T W Mechanical | remove (e) hood, exhaust fan, make up fan & replace with new hood, exhaust fan & make up fan.Details
remove (e) hood, exhaust fan, make up fan & replace with new hood, exhaust fan & make up fan. | $10,000 |
| Dec 21, 2021 | Completed final sign-off Oct 2022 | 444 06th St | City Building Inc. | t.i. consisting of 1)selective demo of interior non-structural elements. 2) replace of aluminum framed entry doors & repair of windows, as indicated. 3) nw accessibility-complaint level landing at main entrance. 4)nw framed walls, doors, door frames, int. windows, plmg fixtures paint/flooringDetails
t.i. consisting of 1)selective demo of interior non-structural elements. 2) replace of aluminum framed entry doors & repair of windows, as indicated. 3) nw accessibility-complaint level landing at main entrance. 4)nw framed walls, doors, door frames, int. windows, plmg fixtures paint/flooring | $679,831 |
| Aug 24, 2021 | Completed final sign-off Apr 2023 | 33 Walter U Lum Pl | C T W Mechanical | change of use & occupancy at basement lvl on walter u. lum place from m-retail to a-2 restaurant. including commercial kitchen, refrigeration units, seating area, storage, and accessibility upgrades. no changes to building facade or structural systems.Details
change of use & occupancy at basement lvl on walter u. lum place from m-retail to a-2 restaurant. including commercial kitchen, refrigeration units, seating area, storage, and accessibility upgrades. no changes to building facade or structural systems. | $400,000 |
| Jul 2, 2021 | Completed final sign-off Oct 2021 | 2565 03rd St | C T W Mechanical | ste 308 (3rd fl): remove (e) exhaust fan & install new exhaust fan & make up air fanDetails
ste 308 (3rd fl): remove (e) exhaust fan & install new exhaust fan & make up air fan | $10,000 |
| Feb 3, 2020 | Never finaled issued Mar 2020, no final | 2565 03rd St | C T W Mechanical | #322: install duct & exhaust fan, ef-1 for dishwasher exhaust. also install fresh air duct with backdraft damper & filters. reference pa #2019-1217-9762.Details
#322: install duct & exhaust fan, ef-1 for dishwasher exhaust. also install fresh air duct with backdraft damper & filters. reference pa #2019-1217-9762. | $25,000 |
| Nov 12, 2019 | Never finaled issued Nov 2019, no final | 2339 03rd St | C T W Mechanical | remove existing baseboard heaters and install 2 rooftop heatpumps and 1 split heatpump unit to replace existingDetails
remove existing baseboard heaters and install 2 rooftop heatpumps and 1 split heatpump unit to replace existing | $40,000 |
| Oct 23, 2019 | Never finaled issued Oct 2019, no final | 1361 Bush St | C T W Mechanical | replace 4 rooftop heatpump units and 4 split type outdoor heatpumps with new equal size & capacity units. replace (e) fancoils, basement & 1st flDetails
replace 4 rooftop heatpump units and 4 split type outdoor heatpumps with new equal size & capacity units. replace (e) fancoils, basement & 1st fl | $40,000 |
| Oct 23, 2019 | Completed final sign-off Mar 2020 | 838 Grant Av | C T W Mechanical | add kitchen equipment plan to current permit 2019-0326-6198 per sfdph request. no other workDetails
add kitchen equipment plan to current permit 2019-0326-6198 per sfdph request. no other work | |
| Mar 26, 2019 | Completed final sign-off Mar 2020 | 838 Grant Av | C T W Mechanical | revise previously approved bpa# 201710131199 for 6th flr restaurant layout. no change to exterior.replace mechanical systems.Details
revise previously approved bpa# 201710131199 for 6th flr restaurant layout. no change to exterior.replace mechanical systems. | |
| Mar 13, 2019 | Never finaled issued Apr 2019, no final | 5201 03rd St | John P Brennan Co Inc. | g/f: fire repair and restoration of (e) restaurant.Details
g/f: fire repair and restoration of (e) restaurant. | $95,000 |
| Nov 18, 2016 | Completed final sign-off Nov 2017 | 2990 24th St | C T W Mechanical | mechanical work for installing a type i hood, exhaust fan, make up air fan & duct. n/a ordinance #155-13Details
mechanical work for installing a type i hood, exhaust fan, make up air fan & duct. n/a ordinance #155-13 | $18,000 |
| Oct 25, 2016 | Completed final sign-off Apr 2018 | 41 Waverly Pl | Chiang C M Construction Inc. | construct & renovate common bath & toilets on the 4th floor. new lighting, exhaust fans at remodel area.Details
construct & renovate common bath & toilets on the 4th floor. new lighting, exhaust fans at remodel area. | $20,000 |
| Sep 1, 2016 | Never finaled issued Sep 2016, no final | 2565 03rd St | C T W Mechanical | #311- add 4' hood for oven and connecting duct only. n/a ordinance #155-13Details
#311- add 4' hood for oven and connecting duct only. n/a ordinance #155-13 | $3,000 |
| Jul 13, 2015 | Never finaled issued Jul 2015, no final | 204 Valencia St | C T W Mechanical | install type i & type ii hoods and fans, install 2 split heatpump systems. change of use to limited restaurant under seperate permit.Details
install type i & type ii hoods and fans, install 2 split heatpump systems. change of use to limited restaurant under seperate permit. | $35,000 |
| Jul 1, 2015 | Completed final sign-off May 2016 | 1368 09th Av | C T W Mechanical, S M I Construction Inc. | change of use from retail to limit restaurant. modify (e) entrance to comply with ada requirement. remodle kitchen & new ada bathroom.Details
change of use from retail to limit restaurant. modify (e) entrance to comply with ada requirement. remodle kitchen & new ada bathroom. | $130,000 |
| May 12, 2015 | Completed final sign-off Oct 2015 | 713 Clay St | new open kitchen, new accessible path of travel & restroom, tenant improvements, mech. supply & exhaust. n/a ordinance #155-13.Details
new open kitchen, new accessible path of travel & restroom, tenant improvements, mech. supply & exhaust. n/a ordinance #155-13. | $35,000 | |
| Feb 25, 2015 | Completed final sign-off Dec 2015 | 2475 03rd St | C T W Mechanical | install exhaust fan for elevator machine room. n/a ordinance #155-13Details
install exhaust fan for elevator machine room. n/a ordinance #155-13 | $1,000 |
| Feb 5, 2015 | Completed final sign-off May 2015 | 1000 Guerrero St | C T W Mechanical | install 1 additional type 1 hood. replace exhaust fan and add 1 ventilation fan. maher not reqDetails
install 1 additional type 1 hood. replace exhaust fan and add 1 ventilation fan. maher not req | $6,000 |
| Apr 3, 2014 | Expired or cancelled cancelled Jan 2026 | 298 Alabama St | install 10 sets of split type heatpump basement and 1st floor shell spaces (f-1 printing plant). install 5 rooftop package systems for 3rd floor shell. n/a for the maher ordinance #155-13Details
install 10 sets of split type heatpump basement and 1st floor shell spaces (f-1 printing plant). install 5 rooftop package systems for 3rd floor shell. n/a for the maher ordinance #155-13 | $90,000 | |
| Jan 18, 2012 | Completed final sign-off Apr 2012 | 333 Kearny St | C T W Mechanical | 2nd & 3rd floors-extend (e) supply ducts & install transfer duct through walls. no new equipment.Details
2nd & 3rd floors-extend (e) supply ducts & install transfer duct through walls. no new equipment. | $2,000 |
| May 2, 2011 | Completed final sign-off Oct 2012 | 1948 Ocean Av | Jpg Home Improvement Inc | change existing senior center facility to pool/billard room & add new wet bar and office at ground floor. compt 200121046(dad).Details
change existing senior center facility to pool/billard room & add new wet bar and office at ground floor. compt 200121046(dad). | $25,000 |
| Jul 30, 2010 | Completed final sign-off Sep 2011 | 530 Valencia St | Le Construction Inc | mechnaical work to install one split type heatpump, kitchen exhaust fan and makeup air fan. (ref: bulding, permit app#201001074349 and 200706265131) work includes a type i hoodDetails
mechnaical work to install one split type heatpump, kitchen exhaust fan and makeup air fan. (ref: bulding, permit app#201001074349 and 200706265131) work includes a type i hood | $25,000 |
| Jun 29, 2010 | Completed final sign-off Nov 2010 | 2608 Ocean Av | C T W Mechanical | install kitchen hoods, hood -1, and hood-2 a and b with grease exhaust fans and ductwork. install 1 makeup air supply fan, ref appl #2008.1105.5933 (arch).Details
install kitchen hoods, hood -1, and hood-2 a and b with grease exhaust fans and ductwork. install 1 makeup air supply fan, ref appl #2008.1105.5933 (arch). | $20,000 |
| Nov 5, 2008 | Completed final sign-off Oct 2009 | 2608 Ocean Av | remodel (e) retail space to a restaurant including changing front entrance doors and replacement of new glass panels. change of use from m to bDetails
remodel (e) retail space to a restaurant including changing front entrance doors and replacement of new glass panels. change of use from m to b | $50,000 | |
| Jul 16, 2008 | Completed final sign-off Sep 2008 | 1001 Grant Av | at basement and 1st fl: remove existing fancoils, heatpumps & furnace, install four new high efficiency heatpumps w/ fancoil, install exhaust fans for bathroom, and elevator machine rm for control of temperature. reuse existing duct as much as possible and install new duct.Details
at basement and 1st fl: remove existing fancoils, heatpumps & furnace, install four new high efficiency heatpumps w/ fancoil, install exhaust fans for bathroom, and elevator machine rm for control of temperature. reuse existing duct as much as possible and install new duct. | $50,000 | |
| Jul 7, 2008 | Completed final sign-off May 2009 | 333 Kearny St | install toilet exhaust fans, and done heating system for each floor from 2nd to 7th floor. refenerce of mechanical work of pa #200608240401.Details
install toilet exhaust fans, and done heating system for each floor from 2nd to 7th floor. refenerce of mechanical work of pa #200608240401. | $40,000 | |
| Jun 18, 2008 | Completed final sign-off Jul 2008 | 2443 Clement St | install two split system heat pump & fan coil unitsDetails
install two split system heat pump & fan coil units | $15,000 | |
| Mar 20, 2008 | Completed final sign-off Apr 2008 | 501 Ofarrell St | install split system cooling fancoil for elevator machine room coolingDetails
install split system cooling fancoil for elevator machine room cooling | $8,000 | |
| Jun 28, 2007 | Completed final sign-off Oct 2007 | 1900 Fillmore St | Rorce Lo | install 1.5 ton colling/heating capacity split type heat . work for #1900. referenced to bldg pa# 200705302482Details
install 1.5 ton colling/heating capacity split type heat . work for #1900. referenced to bldg pa# 200705302482 | $6,000 |
| Jan 26, 2007 | Completed final sign-off May 2007 | 466 Haight St | add to building appl#200609273470 install type i grease exhaust system and make up air system for kitchen.Details
add to building appl#200609273470 install type i grease exhaust system and make up air system for kitchen. | $10,000 | |
| Nov 29, 2006 | Completed final sign-off Mar 2007 | 518 Haight St | amandmend to permit #1080488, revision to 200501133206 need fire dept. reviewDetails
amandmend to permit #1080488, revision to 200501133206 need fire dept. review | ||
| Nov 13, 2006 | Completed final sign-off May 2007 | 1836 Divisadero St | revision to appl#200610266150 to relocate the kitchen exhaust fan and add make up air unit.Details
revision to appl#200610266150 to relocate the kitchen exhaust fan and add make up air unit. | $3,000 | |
| Nov 13, 2006 | Completed final sign-off Dec 2006 | 2535 Taraval St | add ventilation fan & ductwork, mechanical permit. reference to appl#200508029169Details
add ventilation fan & ductwork, mechanical permit. reference to appl#200508029169 | $4,000 | |
| Jun 20, 2006 | Expired or cancelled expired Dec 2010 | 1122 Taraval St | reference to bldg. appl#200603086268 install new furnace, condenser and associated ductwork.Details
reference to bldg. appl#200603086268 install new furnace, condenser and associated ductwork. | $8,000 | |
| Mar 1, 2006 | Completed final sign-off Apr 2008 | 518 Haight St | reference to appl . adding the grease , 1 hood exhaust system & 1 makeup air system.Details
reference to appl . adding the grease , 1 hood exhaust system & 1 makeup air system. | $15,000 | |
| Dec 1, 2005 | Expired or cancelled expired May 2007 | 910 Geary St | replace existing grease duct & fan with new duct & fan. add new make up air system.Details
replace existing grease duct & fan with new duct & fan. add new make up air system. | $9,000 |