Updated: Dec 18, 2025
Location and Projects
Address
2727 Fruitvale Ave, Oakland, CA, 94601
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Caha Design Group Photos
Caha Design Group Architect
CAHA Design was founded in San Francisco/Oakland in 2018 by Casey Ramirez and Hallie Chen. With interdisciplinary backgrounds in architecture, community-based design, ecology, art and building we see every project as an opportunity to push the envelope. While Architectural Scale buildings, renovations, and installations are our primary media- we do custom furniture, artwork, and research as well. Our work is currently based in the San Francisco Bay area, but we find joy in applying our process to new contexts.
From BuildZoom: Caha Design Group, 2727 Fruitvale Ave, Oakland, CA (Employees: Casey Ramirez and Hallie Chen) holds a Buisness partner Hallie Chen Architects license license and 1 other license according to the California license board.
Their BuildZoom score of 148 ranks in the top 1% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Caha Design Group, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Caha Design Group Services
Start a project today:
Architectural Drawings and ...
Other Architecture and Engi...
Sheds and Outhouses
Drafting
Mobile Homes
Pole Barn
Pool House
Other Secondary Structure N...
Building Design
Addition Design
ADU Design
Basement Design
Bathroom Design
Custom Home Design
Healthcare Facility Design
Hotel Design
Industrial Building Design
Kitchen Design
Modular Home Design
Multi-Family Building Design
Office Building Design
Office Space Designer
Restaurant Design
Retail Design
Warehouse Design
Caha Design Group Contact Information
Phone Number: (707) 363-1365
Address: 2727 Fruitvale Ave, Oakland, CA 94601
Caha Design Group Oakland
Quality
148
99th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Caha Design Group has a BuildZoom score of 148, which places them above 99% of 336,931 contractors in California.
Activity
|
17 projects
|
2025 |
|
11 projects
|
2024 |
|
13 projects
|
2023 |
Our building permit records indicate that Caha Design Group has worked on at least
41.0 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
|
10 projects
|
Commercial Renovations |
|
7 projects
|
Home Additions |
Analyzing permits over the last 4 years shows that Caha Design Group mostly works on
commercial renovation
and home addition
projects.
Pricing
|
8 projects
|
< $5k |
|
11 projects
|
$5k-$20k |
|
4 projects
|
$20k-$50k |
|
6 projects
|
$50k-$100k |
|
8 projects
|
$100k-$250k |
|
3 projects
|
$250k-$500k |
|
1 project
|
$500k-$1mil |
The typical size of their permits is approximately $26,832. 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.
Caha Design Group Reviews
5 out of 5 stars, based on
1
review
-
By Rudolf I.December 21, 2019architect$125,000
This is a sample of this contractor's permits. Click here to access their complete permit history.
G/f tenant improvement. restaurant renovation:n) non structural partition to enclose kitchen millwork partition for private dining room bar reconfifuration. refinish walls & paint in dining & bathooms replace e) fixtures. new kitchen equipement at bar & some in back of house. no exterior work
Valuation:
$300,000
Permit #:
202501279127
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
05 - food/beverag...
Existing 1-story single-family dwelling includes demolishing the existing outdoor kitchen to expand the main house kitchen by 150 sq. ft. with associated remodel work; remodeling the hallway bathroom in-kind; removing the wall between the kitchen dining room and living room to create an open-concept dining and living area; demolishing the fireplace and chimney between the living room ... see more
Valuation:
$146,073
Permit #:
BD-2025-298099
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Change of use to include production bakery and storage to existing retail. alteration include new non structural partitions ada restroom exit foor mep is deferred. this use is not subject to dph reviewing it is state regulated
Valuation:
$185,100
Permit #:
202503031448
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
15 - retail sales
Renovation and small addition to incorporate (e) structure in rear yard into main residence. some demolish drainage and foundation work included. (e) home is 1669 sf increasing to 1776 sf. (e) structure permit under #200805131973 and 201302190415
Valuation:
$200,000
Permit #:
202510076871
Status:
filed
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
Demolish (e) kitchen & partition wall and associated electrical and gas lines.r/r electrical subpanel.demo (e) rear facade door and window with new in-kind.demo (e0 kitchen window. new kitchen: new appliances finishes and cabinets. new plumbing & elect. addition bedroom at rear and move kitchen from rear
Valuation:
$70,885
Permit #:
202501168457
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
28 - 2 family dwe...
Renovation of (e) 2-story multi family. remove and replace front facade window in office in kind. demolish (e) deck. new deck with staircase. remove interior partition in kitchen. no addition of plumbing fixtures
Valuation:
$20,000
Permit #:
202505096194
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
28 - 2 family dwe...
(n) accessory structure to replace (e) garage structure on r-1 lot with 1 (e) single family home demolish (e) (163 gross s.f.) garage structure. building (n) (558 gross s.f.) 2-story structure - level 01 (234 gross s.f.) to be garage storage providing (1) off-street parking space level 02 (324 gross s.f.) to be (n) accessory dwelling unit
Valuation:
$150,000
Permit #:
B2024-04991
Status:
approved
Fee:
$3,249
Permit Type:
N/A
Building Type:
N/A
Residential interior remodel of (e) 2 story unit in (e) 3 story 2 family building. demolish of (e) partitions restrooms and wet bar. (n) full height non-rated partitions relocation of restrooms 1 (n) bedrooms (1)(n) laundry room
Valuation:
$184,385
Permit #:
202407025717
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
28 - 2 family dwe...
Revision to pa# 202501168457 demolish (e) kitchen windows demolish (e) bedroom windows replace bedroom and kitchen windows in-kind. windows not visible from street
Valuation:
$50,000
Permit #:
202505166672
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
28 - 2 family dwe...
Rear horizontal and vertical addition.additon of anew unit with dedicated entrace off 19th st, an accessory dwelling unit over an (e)garage.scope of work includes an interior remodel @ all fls with(n)exterior finishes
Valuation:
$850,000
Permit #:
202310279690
Status:
filed
Fee:
N/A
Permit Type:
N/A
Building Type:
24 - apartments
Convert 870sf garage area into habitable space new bedroom rebuild int staircase. new roof w skylights over (e) light well. new hvac for 1st and 2nd fl bedroooms. new hot water system for household
Valuation:
$150,000
Permit #:
202209152555
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
2-4/fl-rev 202406184792- removal of raised access floor at north portion of buliding level 2, 3, 4
Valuation:
$294,845
Permit #:
202408309855
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
10 - office
Change use (e) retail to exercise studio at 1st and 2nd fl. 1 full height partition w/doors on ground fl. 1 full height partition & full height partitions for shower & restroom stalls. renovate (e) restroom to be accessible w/shower & employee laundry. minor finish upgrades millwork throughout
Valuation:
$305,493
Permit #:
202410163048
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
38 - health studi...
Commercial ti: replace kitchen flooring remove and replace dining room flooring (n) accessible sink in (e) accessible restroom. install (n) pizza oven (n) grease trap (n) mixer
Valuation:
$98,500
Permit #:
202410223441
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
05 - food/beverag...
Interior demolition of (e) partial height bar millwork finishes some kitchen equipment ab017- deferred construction permit
Valuation:
$10,000
Permit #:
202501309408
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
05 - food/beverag...
Comply with nov 202420612: renovation of laundromat. new non rated interior framing new drywall new dropped ceiling grid new ductwork new lighting new finishes restroom remodel
Valuation:
$180,000
Permit #:
202405172411
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
06 - laundry/laun...
Creating new work room at level 1 door and window at rear facade new lighting and power at work room. voluntary seismic retrofit. new bathroom at level 1 replace garage door. replace gas furnaces for both units
Valuation:
$58,000
Permit #:
202308094078
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
28 - 2 family dwe...
Installation of security shutters on exterior windows and door of (e) retail store
Valuation:
$12,000
Permit #:
202504083958
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
15 - retail sales
Interior remodel of kitchen and bedroom 57 sf bathroom addition structural partitions partial demolish of (e) interior partitions. rev. to electrical upgrade main panel - 200 amps new hvac
Valuation:
$95,100
Permit #:
B20-2198
Status:
final
Fee:
$5,011
Permit Type:
N/A
Building Type:
N/A
Convert laundry room to storage room. relocate water line and drain pipe. relocate electrical outlet and addition some lighting. insulate room and new non-bearing wall with door
Valuation:
$15,000
Permit #:
202306089572
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
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Caha Design Group License info
Verified License
| License # | C-38753 |
| Status | Active |
| State | California |
| Type | Buisness partner Hallie Chen Architects license |
| Business Type | Limited Liability Company (Llc) |
- BuildZoom has not verified this license since June, 2025.
Verify this license's status for Caha Design Group at the California Architect License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 1020976 |
| Status | Inactive |
| State | California |
| Type | General Building Contractor |
| Class | B |
| Business Type | Limited Liability Company (Llc) |
- According to the California Contractors State License Board, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for Caha Design Group at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
148
BuildZoom Score
44
Permits
- Building permit records show that Caha Design Group has worked on 44 permitted projects.
Caha Design Group Employees
CR
Casey Ramirez
HC
Hallie Chen
Our property located in Sonoma's East side hills was severely damaged by the 2017 wildfires. Several months ago, we were introduced to Mr. Casey Ramirez by BUILDZOOM. Mr. Ramirez is one of the principals of CAHA Design Group in Oakland, CA; he is the architect in charge of our restoration. Although we have only been working with Mr. Ramirez ~ 5 months.....we are very pleased with his drawings/ conceptual ideas proposed to date. He has a comfortable demeanor, & communicates well. We are confident in his abilities. RVI/GRA