Updated: May 31, 2026
Location and Projects
Address
477 Pacific Ave, San Francisco, CA, 94133
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At6 Architecture + Design Build Photos
At6 Architecture + Design Build
We integrate design and construction to create innovative and personalized homes. With a tight-knit staff of architects and builders, the aesthetic and practical goals of each project are aligned under one roof and we are able to continuously and efficiently refine both. We take responsibility for our clients' experience from the initial design to handing over the keys, and our low-stress process includes scrutinizing the budget, schedule, and buildability early and often.
From BuildZoom: At6 Architecture + Design Build, 477 Pacific Ave, San Francisco, CA (Employee: Jason Park Langkammerer) holds a General Building license and 1 other license according to the California license board.
Their BuildZoom score of 109 ranks in the top 5% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring At6 Architecture + Design Build, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
At6 Architecture + Design Build Contact Information
Phone Number: (415) 503-0555
Address: 477 Pacific Ave, San Francisco, CA 94133
At6 Architecture + Design Build San Francisco
Quality
109
95th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
At6 Architecture + Design Build has a BuildZoom score of 109, which places them above 95% of 336,931 contractors in California.
Activity
|
5 projects
|
2025 |
|
8 projects
|
2024 |
|
4 projects
|
2023 |
Our building permit records indicate that At6 Architecture + Design Build has worked on at least
17.0 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
|
4 projects
|
Home Additions |
Analyzing permits over the last 4 years shows that At6 Architecture + Design Build mostly works on
home addition
projects.
Pricing
|
1 project
|
$5k-$20k |
|
3 projects
|
$20k-$50k |
|
3 projects
|
$50k-$100k |
|
4 projects
|
$100k-$250k |
|
3 projects
|
$250k-$500k |
The typical size of their permits is approximately $75,000. 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 At6 Architecture + Design Build
This is a sample of this contractor's permits. Click here to access their complete permit history.
To comply w/nov# 202303882 repair inkind (e) structure after major fallen tree damage replaris includes rebuilding a portion of the rear wall, replacing the roof inkind replacing 3 damaged windows & 1 door no upgrades to structure beyond replacement/rebuilding in-kind. bathroom reno inkind & electrical
Valuation:
$288,000
Permit #:
202309206995
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
114 sf addition at lvl 1. convert 30 sf of unconditioned garage space to conditioned living space kitchen & bathroom renovation including filling in lightwell at level 2. lvl 2: new door & windows & replacing 1 door lvl 1: rear facade replacing (1) door. addition 2 skylights. n)furnance & tankless w/h
Valuation:
$189,000
Permit #:
202412237308
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
To comply w/nov# 202303882 repair inkind (e) structure after major fallen tree damage replaris includes rebuilding a portion of the rear wall, replacing the roof inkind replacing 3 damaged windows & 1 door no upgrades to structure beyond replacement/rebuilding in-kind. bathroom reno inkind & electrical
Valuation:
$288,000
Permit #:
202309206995
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
Remodel to existing two family residence work to include converting 120sf of garage to condition kitchen/pantry minor fill in addition at rear (27sf) for storage interior remodel to include kitchen (total 2) 3 baths new deck exterior stairs at rear
Valuation:
$350,000
Permit #:
202209162629
Status:
reinstated
Fee:
N/A
Permit Type:
N/A
Building Type:
28 - 2 family dwe...
Legalize 296sf of unpermiited living space at garage level to include 4 bathroom and 4 bedroom. no change to exterior envelope
Valuation:
$76,000
Permit #:
202501228844
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
28 - 2 family dwe...
Revision to permit 202311140775 to address dbi issued correction notice dated 7/22/24 regarding new scope fo demolition. revision includes replacement in kind of 1st and 2nd level southwest corner demolish and reframe blind wall floor systems & roof per plans.all work under this permit shall be clouded
Valuation:
$20,000
Permit #:
202408017715
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
Remodel kitchen and 3.5 bathrooms remove 33 sf floor area & replace 3 windows and 2 door units. no exterior work visible from street convert bedroom & master closet including adding non-bearing partitions
Valuation:
$268,000
Permit #:
202002144538
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
Partial replacement in kind of (e)hipped roof reframing at rear of building (north + north east elevation) front door replacement. window replacements. window replacements at rear and weat side (no impact on public right of way). interior renovation of existing kitchen including removal of interior
Valuation:
$150,000
Permit #:
202205275125
Status:
filed
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
(e) hipped roof reframing and replacement. interior renovation of (e) kitchen including removal of interior walls. front door replacement. replace rear windows and doors all other work not visible from public row
Valuation:
$187,000
Permit #:
202206106059
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
Interior remodel to (e) sfd: 1 bathroom remodel convert a portion of garage to conditioned space (179 sf). seismic upgrades to ground fl. (note: all work at lvl 2 & exterior under 202403218358)
Valuation:
$75,000
Permit #:
202403288801
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
Interior remodel to existing single family dwelling. work to include kitchen rennovation (1) bathroom remodel (1) new bathroom and window replacements at the side (6) total
Valuation:
$100,000
Permit #:
202403218358
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
Revision to address complaint# 202305617 & pa# 202209162629 structural upgrades include new underpinned footing at east wall new concrete slab at lvl1 new sistered footing along south property line wall at location of lowered slab new floor framing @ lvl2 & new 2x10 roof framing
Valuation:
$20,000
Permit #:
202305228258
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
28 - 2 family dwe...
Remodel (e) kitchen renovation (3) bathroom renovations window replacements at rear and sash replacements at front elevation (3) skylights at (e) openings. (n) heating and water heater upgrades. minor fill in at level 1 under
Valuation:
$438,000
Permit #:
202311140775
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
Addition to level 1. work to include 2 (n) bedrooms bathroom and laundry closet at level 1. (n) roof deck at level 2
Valuation:
$162,000
Permit #:
202305318873
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
Replace exterior siding in-kind structural upgrades @ exterior new exterior plywood & ledger board installation in preparation for future decks under separate permit (202207148464)
Valuation:
$20,000
Permit #:
202305198170
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
Interior remodel at gr fl bathroom renovation and heating system upgrade. addition zoned damper for heating control downstairs. replace 1 window at bathroom. max u-factor 0.30
Valuation:
$30,000
Permit #:
202307273166
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
Interior renovation @ unit 1; work includes (1) bathroom and (1) kitchen renovation; (n) air handler serving unit 1; (n) tankless water heaters serving unit 1 & 2; (n) laundry closets at unit 1 & 2
Valuation:
$62,405
Permit #:
202312142532
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
24 - apartments
Remodel kitchen and 3.5 bathrooms remove 33 sf floor area & replace 3 windows and 2 door units. no exterior work visible from street convert bedroom & master closet including adding non-bearing partitions
Valuation:
$268,000
Permit #:
202002144538
Status:
filed
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
Interior remodel to e residence. work to include new flooring at level 2 and 3 remodel 2 baths powder room kitchen and master bathroom to level 3. small extension at lvel 1 media room and rebuild e deck at level 1
Valuation:
$244,000
Permit #:
201903125055
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
28 - 2 family dwe...
Conversion of (e) crawl space into gym; covering part of (e) deck to create a sun room next to (e) kitchen; small enlargement and change of configuration of floor area at (e) laundry and (e) bathroom on level 6; small enlargement and change of configuration of floor area at (e) closet and (e) master bathroom on level 7 *** 4/21/2023 - fees paid reinstated permit - bdb ***
Valuation:
N/A
Permit #:
BIAD21-003515
Status:
final
Fee:
$14,366
Permit Type:
N/A
Building Type:
N/A
At6 Architecture + Design Build Reviews
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Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
At6 Architecture + Design Build License info
Verified License
| License # | 283485 |
| Status | Active |
| State | California |
| Type | General Building |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for At6 Architecture + Design Build at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 0495 |
| Status | Active |
| City | San Carlos |
- BuildZoom has not verified this license since September, 2016.
Verify this license's status for At6 Architecture + Design Build at the The City of San Carlos, CA.
This is a sample of licensing data; click here to access a complete history.
109
BuildZoom Score
Bonded
| Bonded Agent | American Contractors Indemnity Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | State Compensation Insurance Fund |
86
Permits
- Building permit records show that At6 Architecture + Design Build has worked on 86 permitted projects.
At6 Architecture + Design Build Employees
JL
Jason Park Langkammerer
Rmo / Ceo / Pres