Updated: Jan 04, 2026
Location and Projects
Address
575 2ND AVENUE, San Francisco, CA, 94118
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on Tung Construction
Serving San Francisco and the surrounding Bay Area, on Tung Inc specializes in residential and commercial construction projects. With 10 years in business, the company has completed a range of building projects across the city. Services include new home construction, remodeling, and additions, as well as tenant improvements for commercial spaces. on Tung Inc works with both homeowners and business clients, offering expertise in navigating the construction process in a complex urban environment like San Francisco. The team manages projects from initial planning through completion, coordinating with architects, engineers, and city inspectors to help ensure all work meets local building codes. Their project portfolio includes multi-family residential renovations and interior commercial fit-outs.
on Tung Inc Services
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on Tung Inc Contact Information
Phone Number: (415) 310-7573
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Address: 575 2ND AVENUE, San Francisco, CA 94118
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on Tung Inc San Francisco
Quality
107
94th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
on Tung Inc has a BuildZoom score of 107, which places them above 94% of 336,931 contractors in California.
Activity
|
2 projects
|
2025 |
|
1 project
|
2024 |
|
2 projects
|
2023 |
Our building permit records indicate that on Tung Inc has worked on at least
5.0 projects over the past 3 years.
This is an overview of this contractor's activity. Click here to access our complete licensing and building permit database.
This is an overview of this contractor's activity. Click here to access our complete licensing and building permit database.
Experience
|
3 projects
|
Kitchen remodels |
Analyzing permits over the last 4 years shows that on Tung Inc mostly works on
kitchen remodel
projects.
Pricing
|
1 project
|
< $5k |
|
1 project
|
$50k-$100k |
|
2 projects
|
$100k-$250k |
Pro tip:
For more details about their pricing, check out their recent activity to see how much they have charged for different types of work.
This is a sample of this contractor's permits. Click here to access their complete permit history.
Unit 4: convert (e) storage room laundry room to bedroom. addition 1 new bathroom & convert (e) powder room to full bathroom. install 2 wetbar. all work at g/f. (space for unit 4)
Valuation:
$110,000
Permit #:
202504225010
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
24 - apartments
2/f: create open floor plan for living/dining room/kitchen reconfigure interior staircase addition primary bathroom reconfigure/remodel full bath; ground f: shift rear wall to line w/(e) 2/f wall reconfigure fmily room ad (2) bedrooms & full bathroom behind garage; replace furnace & water heater
Valuation:
$150,000
Permit #:
202209303514
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
Unit 4: ref to building pa# 202504225010: convert (e) storage room laundry room to bedroom. addition 1 new bathroom & convert (e) powder room to full bathroom. install 2 wetbar
Valuation:
N/A
Permit #:
E202506022861
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
2/f: create open floor plan for living/dining room/kitchen reconfigure interior staircase addition primary bathroom reconfigure/remodel full bath; ground f: shift rear wall to line w/(e) 2/f wall reconfigure fmily room ad (2) bedrooms & full bathroom behind garage; 18 switches 42 receptacles
Valuation:
N/A
Permit #:
E202210072868
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Remodel (e) kitchen bathroom. construct 1 new bathroom. rmeove interior staircase & replace (e) sheet rock with new all work on 2/f. upgrade electrical panel. 30 circuits
Valuation:
N/A
Permit #:
E202301174539
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Remodel (e) kitchen bathroom. construct 1 new bathroom. remove interior staircase & replace (e) sheet rock with new all work on 2/f
Valuation:
$80,000
Permit #:
202209142420
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
2/f: remodel (e) kitchen bathroom. construct 1 new bathroom. rmeove interior staircase & replace (e) sheet rock with new
Valuation:
N/A
Permit #:
PP20230117038
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Unit 4 (only): remodel (e) kitchen in kind. replace countertop all cabinets sink & rewire electrical
Valuation:
N/A
Permit #:
E202506022857
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Revision to permit# 202209303514: remove original scope of work to replace (2) street facing windows for final building inspection
Valuation:
$1
Permit #:
202401194257
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
1) construct two bedrooms two full bathrooms media room on ground floor. 2) replace & underpin partial foundation 3) rebuild interior staircase from second floor down to ground floor. 24 service size 24 feeder size 30 switchboard size 1 transformer 24 circuits 10 lights 8 switches 8 receptacles 2 fans 4 smoke detectors
Valuation:
N/A
Permit #:
E201905311640
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
1) convert extg one bedroom to 2 bedroom. construct one ful bathroom at ground floor. 2)relocate extg kitchen bathroom addition one new bathroom & convert extg kitchen space to bedroom at 2nd floor
Valuation:
$90,000
Permit #:
201911137124
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
Unit 4: 2 bathrooms plumbing 2 shower pans sink toilet wet bar laundry w underground
Valuation:
N/A
Permit #:
PP20250602596
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
2/f: addition master bathroom remodel full bathroom and kitchen. g/f: addition full bathroom. replace water heater
Valuation:
N/A
Permit #:
PP20221007463
Status:
expired
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Construct 2 bedroom 2 full bathrm media tm at grnd floor. replace and underpin partial foundation. rebuild interior stairs from 2nd to ground floor
Valuation:
$120,000
Permit #:
201905201056
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
28 - 2 family dwe...
Contruct 1 bedroom into 2 bedrooms. new full bathroom on g/f. relocate (e) kitchen & bathroom. addition one new bathroom & convert kitchen space to bedroomon 2/f. new fixtures
Valuation:
N/A
Permit #:
PP20191218100
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Remodel (e) kitchen & two bathrooms. convert existing bathroom to a master bedroom bathroom. remove load bearing wall between kitchen & living room. replace all windows. (front windows to be wood clad alum)
Valuation:
$50,000
Permit #:
201807255567
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
Contruct 1 bedroom into 2 bedrooms. new full bathroom on g/f. relocate (e) kitchen & bathroom. addition one new bathroom & convert kitchen space to bedroomon 2/f. new plugs lights switches new ckts. new panelboards
Valuation:
N/A
Permit #:
E201912186297
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Construct 2 bedrooms 2 full bathroom & media room @ ground floor; remodel (e) kitchen bathroom addition 1 new bathroom. in-fill central patio & replace sheet rock w/new @ 2nd floor
Valuation:
$120,000
Permit #:
201902193196
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
1) construct two bedrooms two full bathrooms media room on ground floor 2) replace and underpin partial foundation 3) rebuild interior staircase from second floor down to ground floor
Valuation:
N/A
Permit #:
PP20190531277
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Change the sink & laundry plumbing
Valuation:
N/A
Permit #:
PP20250602589
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
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Verified License
BuildZoom confirmed this contractor's license
on Tung Inc License info
Verified License
| License # | 1005809 |
| Status | Active |
| State | California |
| Type | General Building |
| Business Type | Corporation |
- BuildZoom verified this license was active as of January 2026.
Verify this license's status for on Tung Inc at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
107
BuildZoom Score
Bonded
| Bonded Agent | Western Surety Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | State Compensation Insurance Fund |
14
Permits
- Building permit records show that on Tung Inc has worked on 14 permitted projects.
on Tung Inc Employees
DW
Dingsheng Wen
Rmo / Ceo / Pres
DW
Dingsheng Wen
Ceo / President
OL
On Lee
Rmo