Updated: Jun 10, 2025
Location and Projects
Address
2421 Fourth St, Berkeley, CA, 94710
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Trachtenberg Architects Photos
Trachtenberg Architects
Trachtenberg Architects, 2421 Fourth St, Berkeley, CA (Owned by: Trachtenberg David) holds a Architect license according to the California license board.
Their BuildZoom score of 112 ranks in the top 3% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Trachtenberg Architects, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Trachtenberg Architects Services
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Trachtenberg Architects Contact Information
Phone Number: (510) 649-1414
Address: 2421 Fourth St, Berkeley, CA 94710
Trachtenberg Architects Berkeley
Quality
112
97th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Trachtenberg Architects has a BuildZoom score of 112, which places them above 97% of 336,931 contractors in California.
Activity
|
3 projects
|
2025 |
|
5 projects
|
2024 |
|
5 projects
|
2023 |
Our building permit records indicate that Trachtenberg Architects 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
|
Commercial Renovations |
Analyzing permits over the last 4 years shows that Trachtenberg Architects mostly works on
commercial renovation
projects.
Pricing
|
3 projects
|
$50k-$100k |
|
3 projects
|
$100k-$250k |
|
1 project
|
$250k-$500k |
|
1 project
|
$500k-$1mil |
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 Trachtenberg Architects
This is a sample of this contractor's permits. Click here to access their complete permit history.
Convert (2) (e) ground level car ports into (1) (n) (1) bedroom and (1) bathroom adu and (1) (n) studio adu for building f. f01 - 731 sqft f02 - 387 sqft includes all related mechanical electrical and plumbing. (2)tub/shower (2)lavs (2)water closet (2)sink (2)dishwasher (2)garbage disposal (2)clothes washer (34)outlets (16)switches (24)fixtures (3)a/c units (2) refrigeration system an... see more
Valuation:
$260,000
Permit #:
COMR-2025-0168
Status:
pre-issuance status
Fee:
$3,284
Permit Type:
N/A
Building Type:
N/A
Construction of new two-story mixed-use building with 1 dwelling unit over office space. new 8 fence along cedar street
Valuation:
$700,372
Permit #:
B2025-02361
Status:
plancheck
Fee:
$22,023
Permit Type:
N/A
Building Type:
N/A
Tenant improvement for trek bicycle corporation including interior partition walls remodeling (2) existing restrooms. no changes to (e) mep and sprinkler system are proposed
Valuation:
$200,000
Permit #:
B2024-06027
Status:
canceled
Fee:
$3,953
Permit Type:
N/A
Building Type:
N/A
Addition protections to the hvac heat pumps in parking area to comply with cbc 406.2.9.note that this revision has been discussed and approved in principle by the building inspector. no change in valuation
Valuation:
N/A
Permit #:
B2021-02404-REV19
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Warm shell application for an existing retail space one ada bathroom and a janitor's closet. new mep utilities will be added to the space
Valuation:
$185,000
Permit #:
B2024-03712
Status:
issued
Fee:
$3,715
Permit Type:
N/A
Building Type:
N/A
Change of use: adaptive reuse of existing retail space into office and event spaces for the creation of a new community facility use. work includes structural upgrades reconfiguration of floor plates and new fixture finishes life safety
Valuation:
$3,000,000
Permit #:
201903266240
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
10 - office
Tenant improvement including interior partition walls & dropped ceiling providing one accessible restroom mep improvements fire sprinkler system modifications new concrete floor over entire space
Valuation:
$247,160
Permit #:
B2024-02593
Status:
plancheck
Fee:
$4,392
Permit Type:
N/A
Building Type:
N/A
Conversion of 12 parking garage into 6 accesible dwelling units (unit 127 with 397sf unit 128 with 397sf unit 129 with 399sf unit 130 with 398sf unit 131 with 399sf and unit 132 with 398sf) totaling 2, 389 sf habitable space. pursuant to ca ab345 ab3182 ab881 ab670 ab587 & ab671
Valuation:
N/A
Permit #:
B24-0590
Status:
canceled
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Conversion of 2 parking garages into one accessory dwelling unit (adu) of 397sf. pursuant to ca ab345 ab3182 ab881 ab670 ab587 and ab671 all plan sets and calculations for this adu was submitted under associated building project number: p0000918
Valuation:
N/A
Permit #:
B24-0712
Status:
issued
Fee:
$2,495
Permit Type:
N/A
Building Type:
N/A
Conversion of 2 parking garages into 1 accessory dwelling unit at 398sf (adu type b #06). pursuant to ca ab345 ab3182 ab881 ab670 ab587 and ab671 project drawing plan set and calculation submitted under associated building project #p0000918
Valuation:
N/A
Permit #:
B24-0717
Status:
issued
Fee:
$2,504
Permit Type:
N/A
Building Type:
N/A
Conversion of 2 parking garages into 1 accessory dwelling unit at 399sf (adu type a #05). pursuant to ca ab345 ab3182 ab881 ab670 ab587 and ab671 project drawing plan set and calculation submitted under associated building project #p0000918
Valuation:
N/A
Permit #:
B24-0716
Status:
issued
Fee:
$2,476
Permit Type:
N/A
Building Type:
N/A
Conversion of 2 parking garages into 1 accessory dwelling unit at 398sf (adu type b #04). pursuant to ca ab345 ab3182 ab881 ab670 ab587 and ab671 project drawing plan set and calculation submitted under associated building project #p0000918
Valuation:
N/A
Permit #:
B24-0715
Status:
issued
Fee:
$2,504
Permit Type:
N/A
Building Type:
N/A
Conversion of 2 parking garages into 1 accessory dwelling unit at 399sf (adu type a #03). pursuant to ca ab345 ab3182 ab881 ab670 ab587 and ab671 project drawing plan set and calculation submitted under associated building project #p0000918
Valuation:
N/A
Permit #:
B24-0714
Status:
issued
Fee:
$2,504
Permit Type:
N/A
Building Type:
N/A
Conversion of 2 parking garages into 1 accessory dwelling unit at 397sf (adu type b #02). pursuant to ca ab345 ab3182 ab881 ab670 ab587 and ab671 project drawing plan set and calculation submitted under associated building project #p0000918
Valuation:
N/A
Permit #:
B24-0713
Status:
issued
Fee:
$2,504
Permit Type:
N/A
Building Type:
N/A
Partial removal and replacement of the existing 9-foot wood fence. remove existing exterior service door encroaching stair and landing. replace existing entry gate doors. new steel window shade at south-west corner of the building. repair and refinish exterior walls at south-west corner of building. new cladding of the existing parapet
Valuation:
$55,000
Permit #:
B2023-05567
Status:
issued
Fee:
$1,151
Permit Type:
N/A
Building Type:
N/A
Construct a modular building of approximately 9, 273-square-foot four story 39-unit group living accommodation (gla) operating as a single-room occupancy (sro) residential hotel on a vacant parcel. daa plan checking for state
Valuation:
$1,475,000
Permit #:
B2021-05326
Status:
issued
Fee:
$24,059
Permit Type:
N/A
Building Type:
N/A
Revisions to roof for exterior building maintenance system (emb)-bulletin #2 solar hot water system - bulletin 3 miscellaneous revisions to plans for shaft penetrations & coordination with shop drawings. see attached narrative with revisions per each sheet from all consultants. [no change in valuation.]
Valuation:
N/A
Permit #:
B2021-02404-REV07
Status:
plancheck
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Address assignment for new mixed use building (permit #b2022-01111.) main address 2000 university ave & 2001 milvia st requested addresses are: 2001 milvia street units #201 to 212 #301 to 312 #401 to 412 #501 to 512 #601 to 612 #701 to 712 #801 to 809
Valuation:
N/A
Permit #:
PREAPP000983
Status:
filed
Fee:
$200
Permit Type:
N/A
Building Type:
N/A
**revision submitted for revision of details to eliminate the use of fire-rated offset hangers where joists intersect with 2-hour rated walls. standard hangers that penetrate the wall will be used and the penetration will be fire-caulked per the approved engineering judgment. no increase in valuation**
Valuation:
N/A
Permit #:
B2020-03911-REV01
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Aar: main address 2000 dwight way; proposed address 2000 dwight way suite #'s: first floor: 1101-1108 third floor: 3101-3113; 3115 3117 3119 3121 3123-3126 fourth floor: 4101-4115; 4117 4119 4121 4123-4126 fifth floor: 5101-5113; 5115 5117 5119 5121 5123-5126 sixth floor: 6101-6112; 6119 6121 6123-6146 to be assigned to assisted living facility
Valuation:
N/A
Permit #:
PREAPP000850
Status:
complete
Fee:
$200
Permit Type:
N/A
Building Type:
N/A
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Trachtenberg Architects License info
Verified License
| License # | C20926 |
| Status | Active |
| State | California |
| Type | Architect |
- BuildZoom has not verified this license since March, 2025.
Verify this license's status for Trachtenberg Architects at the California Architect License Board.
This is a sample of licensing data; click here to access a complete history.
112
BuildZoom Score
85
Permits
- Building permit records show that Trachtenberg Architects has worked on 85 permitted projects.
Trachtenberg Architects Employees
MT
Mr. David Trachtenberg
TD
Trachtenberg David
Owner