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Updated: Jul 05, 2026
Location and Projects
Address
3 STARK STREET, San Francisco, CA, 94133
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Sf Twin Boys Corporation Engineer
Sf Twin Boys Corporation, 3 Stark St, San Francisco, CA (Employees: Fay Astri Darmani and Peter Imam Iskandar) holds a General Engineering license and 1 other license according to the California license board.
Their BuildZoom score of 105 ranks in the top 8% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Sf Twin Boys Corporation, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Sf Twin Boys Corporation Services
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Sf Twin Boys Corporation Contact Information
Phone Number: (415) 297-5185
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Address: 3 STARK STREET, San Francisco, CA 94133
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Sf Twin Boys Corporation San Francisco
Quality
105
92nd percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Sf Twin Boys Corporation has a BuildZoom score of 105, which places them above 92% of 336,931 contractors in California.
Activity
|
4 projects
|
2025 |
|
2 projects
|
2024 |
|
7 projects
|
2023 |
Our building permit records indicate that Sf Twin Boys Corporation has worked on at least
13.0 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
|
Home Additions |
Analyzing permits over the last 4 years shows that Sf Twin Boys Corporation mostly works on
home addition
projects.
Pricing
|
3 projects
|
< $5k |
|
2 projects
|
$5k-$20k |
|
2 projects
|
$50k-$100k |
|
3 projects
|
$100k-$250k |
|
1 project
|
$250k-$500k |
The typical size of their permits is approximately $15,000. This graph shows the distribution of these job values.
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.
Building Permits by Sf Twin Boys Corporation
This is a sample of this contractor's permits. Click here to access their complete permit history.
Replace damaged siding west (rear) property 8'x20 linear ft in kind. remove non-structural concrete curb adjacent to the rear wall approx. 5"x5 20 linear ft. replace damaged rear property siding east (front) by the main stairs in kind like for like - 1 board at the bottom
Valuation:
$5,000
Permit #:
202508253858
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
1) bolt (e) mudsill (exposed) 32 oc 6 from edge 5/8 3 washer 6 penetration. strap post beam connection lower room and below garage bolt garage perimeter and north and west lower main house
Valuation:
$5,000
Permit #:
202505065924
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
28 - 2 family dwe...
1st floor & basement: tenant improvement to extg office space(1943 stockton) full ada compliance including new ada bathroom and nw acces. platform lift remodel (e) bathroom replace & expanding extg storage platform lower slab on lower floor by 18 no modification of dwelling unit.seismic upgrade
Valuation:
$340,000
Permit #:
202112063807
Status:
canceled
Fee:
N/A
Permit Type:
N/A
Building Type:
10 - office
Repair (e) roofing waterproofing surface addition (n0 windows to (e) stair penthouse. replace (e)42 high metal & siding railing w 42 glass railing. addition (n) gas fire bbq fridge sink cabinet on casters (not exceed height of (e) parapet
Valuation:
$15,000
Permit #:
202207269340
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
24 - apartments
Renovation of (e) 1617 sq ft 3rd fl unit - kitchen bathroom 1&2 (n) spiral stairs & (n) penthouse at roof renovation of (e) penthouse (n) 240 sq ft roof deck
Valuation:
$150,000
Permit #:
201808167572
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
28 - 2 family dwe...
1639 in-kind; replace (8) interior doors and (1) door to emergency stairs; in existing openings; replace engineered wood flooring; remodel (3) bathrooms (ba1: 4'x8'; ba2: 5'x5'; ba3: 5'x5') all with (n) toilets sinks showers; replace old furnace and old water heater. all work in kind
Valuation:
$75,000
Permit #:
202010025708
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
24 - apartments
At rear cottage only: reinforce floor joist at 2nd floor: reinforce/repair foundation; reinforce joists and remove posts at extg balcony; repair/replace extg wood and concreate stair with new concrete stair
Valuation:
$35,000
Permit #:
202202228424
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
1639 in-kind; replace (8) interior doors and (1) door to emergency stairs; in existing openings; replace engineered wood flooring; remodel (3) bathrooms (ba1: 4'x8'; ba2: 5'x5'; ba3: 5'x5') all with (n) toilets sinks showers; replace old furnace and old water heater. all work in kind
Valuation:
$75,000
Permit #:
202010025708
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
24 - apartments
Establish (e) use (daycare/preschool) space for unit (1945 stockton st) for ground floor; no active space for 3 years prior mechanical under separate permit modifications under separate permit #202202077497
Valuation:
$1,000
Permit #:
202202087524
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
89 - day care hom...
Remodel (e) kitchen; remodel two (e) bathrooms and convert (e) closet to (n) full bathroom. total of (1) shower with preformed pan (2) tubs (3) toilets and (3) sinks
Valuation:
$45,000
Permit #:
202110271314
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
24 - apartments
Ada bathroom improvements as required for path of travel no modification to 2/f or building in rear of property. fire alarm & mechanical under separate permit
Valuation:
$15,000
Permit #:
202202077497
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
10 - office
Replace windows @ front and rear facades; addition masonry tile @ lower front facade; repair (e) stucco; repair siding and water proofing @ (e) roof deck
Valuation:
$15,000
Permit #:
202201075531
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
24 - apartments
Front bldg: revision to 202202077497: repair residential concrete stair at rear less than 50% of structure. provide surface coating at basement wall
Valuation:
$6,000
Permit #:
202205134224
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
10 - office
Remodel (e) kitchen and bathrooms addition 1 bathroom. 10 lights 6 switches 6 receptacles 3 fans 1 dishwasher 1 garbage disposal. need 2 inspections only
Valuation:
N/A
Permit #:
E202110296444
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Rev pa201808167572: revise roof praming between grib 1 to grib 5 replace built-up roof joists with tbi joists
Valuation:
$1
Permit #:
202305057207
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
28 - 2 family dwe...
Rear building in-kind window replacement: replace (e) aluminum windows with vinyl windows at rear; front windows to be clad wood frame double hung. rear building basement openings: addition four folding doors (below street level). provide sprinklers throughout rear building on separate permit
Valuation:
$16,000
Permit #:
202001151974
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
24 - apartments
Unit 1639: remodel (3) bathrooms and (1) kitchen. new light fan switches and outlets in each. 6 lights 6 switches 6 receptacles 3 fans dishwasher garbage disposal microwave range 3 smoke detectors
Valuation:
N/A
Permit #:
E202010079871
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Addition new bathroom in extg closet; 1 sink 1 toilet 1 shower over tub bathroom to comply with cec 150.01 (k)5; no structural
Valuation:
$12,000
Permit #:
202107144319
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
Rear building - addition 1 residential unit @ rear building w/in density unit; relocate 1 residential unit from front building to rear building (front building modification is under separate permit); remodel kitchen bathroom addition insulation at #644 1/2 and 648 1/2
Valuation:
$80,000
Permit #:
201910023279
Status:
withdrawn
Fee:
N/A
Permit Type:
N/A
Building Type:
24 - apartments
At rear cottage only: replace existing fixtures in rxisting kitchen and existing bathroom 1 sink 1 shower 1 toilet
Valuation:
$20,000
Permit #:
202210275351
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
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Sf Twin Boys Corporation Reviews
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Sf Twin Boys Corporation License info
Verified License
| License # | 958755 |
| Status | Active |
| State | California |
| Type | General Engineering |
| Business Type | Corporation |
- BuildZoom verified this license was active as of July 2026.
Verify this license's status for Sf Twin Boys Corporation at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 850407 |
| Status | Active |
| State | California |
| Type | General Building, General Engineering |
| Business Type | Corporation |
- BuildZoom verified this license was active as of July 2026.
Verify this license's status for Sf Twin Boys Corporation at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
105
BuildZoom Score
Bonded
| Bonded Agent | Wesco Insurance Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | State Compensation Insurance Fund |
119
Permits
- Building permit records show that Sf Twin Boys Corporation has worked on 119 permitted projects.
Sf Twin Boys Corporation Employees
FD
Fay Astri Darmani
Officer
PI
Peter Imam Iskandar
Rmo / Ceo / Pres