Updated: Apr 20, 2026
Location and Projects
Address
2346 31ST AVENUE, San Francisco, CA, 94116
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Kelvin Construction
Serving San Francisco and the surrounding Bay Area, Kelvin Construction brings 18 years of experience to residential remodeling and renovation projects. The company’s portfolio includes kitchen remodels, bathroom updates, and whole-home renovations for homeowners throughout San Francisco. Kelvin Construction manages projects ranging from structural updates to complete interior transformations, handling both design and build phases for clients seeking to modernize or restore their properties. The team works closely with homeowners to deliver solutions tailored to each property's unique needs and age, from updating classic San Francisco Victorian homes to improving the functionality of more contemporary residences. With nearly two decades in the industry, Kelvin Construction combines local knowledge of building codes and design trends to meet the specific demands of Bay Area residential projects.
Kelvin Construction Services
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Kelvin Construction Contact Information
Phone Number: (415) 722-8216
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Address: 2346 31ST AVENUE, San Francisco, CA 94116
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Kelvin Construction San Francisco
Quality
101
88th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Kelvin Construction has a BuildZoom score of 101, which places them above 88% of 336,931 contractors in California.
Activity
|
2 projects
|
2024 |
|
2 projects
|
2023 |
Our building permit records indicate that Kelvin Construction has worked on at least
4.0 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.
Pricing
|
1 project
|
< $5k |
|
1 project
|
$5k-$20k |
|
1 project
|
$20k-$50k |
|
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.
1/f: infill (e) sunroom 15x15 2 new bedrooms construct media bar sink and bathroom. relocate mechanical and laundry. 2/f: remodel kitchen and bathroom 1 new bathroom
Valuation:
$206,479
Permit #:
202402206171
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
Construct 2 bedrooms 2 full bathroom & family room at ground floor. remodel (e) kitchen relocate (e) bathroom. addition 1 new bathroom & replace (e) sheet rock w new at 2nd floor. repair (e) deck and guardrail less than 50% at rear in kind
Valuation:
$165,000
Permit #:
202010287621
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
Comply w nov #202184119 & 202184137: addition 1 door 1 window at north side wall. remove (e) sliding door and replace with window & door at the east wall. addition wet bar at g/f. addition 1 window at northside wall at 2nd floor
Valuation:
$10,000
Permit #:
202111162540
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
1st fl. addition 2 bedroom 2 full bathroom and media 2nd fl. remodel bedroom kitchen and bathroom addition 1 bedroom and 2 full baths new deck and patio at rear
Valuation:
$160,000
Permit #:
202001162059
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
1/f: new bedroom media room bathroom/wetbar. 2/f: remodel kitchen 2 new bathrooms. new plugs lights switches
Valuation:
N/A
Permit #:
E202404294068
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
1/f: new bathroom shower pan webar laundry. 2/f 2 new bathrooms & kitchen
Valuation:
N/A
Permit #:
PP20240429587
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
1)construct one bedroom 2 full bathroom room & family room at ground floor. 2)remodel extg kitchen bathroom room & addition one new bathroom at 2nd floor
Valuation:
N/A
Permit #:
E201912206361
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Addition (n) bathroom at (e) garage at lower level
Valuation:
$41,180
Permit #:
202403077277
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
1)construct one bedroom 2 full bathroom room & family room at ground floor. 2)remodel extg kitchen bathroom room & addition one new bathroom at 2nd floor
Valuation:
$84,000
Permit #:
201912199980
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
1)construct 2 full bathroom room & family room at ground floor. 2)remodel extg kitchen bathroom room & addition one new bathroom at 2nd floor
Valuation:
N/A
Permit #:
PP20191220187
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
G/f: relocate full bathroom per plan. new plugs lights switches
Valuation:
N/A
Permit #:
E202209232563
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Amend to pp20240312777: laundry room & shower pan with u/g
Valuation:
N/A
Permit #:
PP20240404200
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Rev to pa 202207208957: g/f - remove approved partition wall relocate laundry. 2/f (n) bedroom per plan
Valuation:
$1
Permit #:
202209212881
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
G/f: relocate full bathorom including u/g and shower pan
Valuation:
N/A
Permit #:
PP20220923209
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
To obtain a final inspection for work approved under previous permit pp20200513663
Valuation:
N/A
Permit #:
PP20210901102
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
2/f: convert (e) kitchen to bedroom relocate kitchen remodel 2 bathrooms. 1/f: addition 2 bedrooms 2 full bathrooms storage laundry upgrade electrical. addition subpanel
Valuation:
N/A
Permit #:
E201707196418
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Addition wet bar at ground floor
Valuation:
N/A
Permit #:
E202112157373
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Bathroom addition at existing garage
Valuation:
N/A
Permit #:
E202403123022
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Bathroom addition at existing garage
Valuation:
N/A
Permit #:
PP20240312777
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
1st fl: addition 1 family & 1 bedroom. 2nd fl: remodel bathroom and addition 1 full bathroom
Valuation:
$30,000
Permit #:
201910033473
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
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Kelvin Construction License info
Verified License
| License # | 981445 |
| Status | Active |
| State | California |
| Type | General Building |
| Business Type | Corporation |
- BuildZoom verified this license was active as of April 2026.
Verify this license's status for Kelvin Construction at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 987615 |
| Status | Inactive |
| State | California |
| Type | General Building |
| Business Type | Corporation |
- According to the California Contractors State License Board, the status of this license was at one point cancelled. However, this information may have changed. If this is your business, please update your license status.
Check this license's status for Kelvin Construction at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
101
BuildZoom Score
Bonded
| Bonded Agent | American Contractors Indemnity Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | State Compensation Insurance Fund |
23
Permits
- Building permit records show that Kelvin Construction has worked on 23 permitted projects.
Kelvin Construction Employees
ZT
Zhi Jian Tan
Sole Owner
ZT
Zhi Jian Tan
Rmo / Ceo / Pres