Updated: Jul 01, 2025
Location and Projects
Address
305 Wickham Dr, Mill Valley, CA, 94941
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Gregory Dedona Architect Photos
Gregory Dedona Architect
Gregory Dedona founded his architectural practice in Mill Valley, CA in 1989 after receiving his California licensure. For over 20 years Greg has been serving local residents and project developers primarily in Marin County, as well as in the greater San Francisco Bay Area, Lake Tahoe, and Los Angeles. Greg's commitment to quality design and high level of thorough service has earned him a loyal client base and a reputation for ability and integrity. Throughout the years he has built a team of experienced professionals including civil and geotechnical engineers, land surveyors, and building contractors.
From BuildZoom: Gregory Dedona Architect, 305 Wickham Dr, Mill Valley, CA (Owned by: Dedona Gregory P) holds a Architect license according to the California license board.
Their BuildZoom score of 103 ranks in the top 10% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Gregory Dedona Architect, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Gregory Dedona Architect Services
Start a project today:
Architectural Drawings and ...
Other Architecture and Engi...
Interior Design
Drafting
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
Pool and Spa Design
Pool House Design
Restaurant Design
Retail Design
Sunroom Design
Warehouse Design
Gregory Dedona Architect Contact Information
Phone Number: (415) 847-6228
Address: 305 Wickham Dr, Mill Valley, CA 94941
Gregory Dedona Architect Mill Valley
Quality
103
90th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Gregory Dedona Architect has a BuildZoom score of 103, which places them above 90% of 336,931 contractors in California.
Activity
|
1 project
|
2025 |
|
1 project
|
2024 |
Our building permit records indicate that Gregory Dedona Architect has worked on at least
2.0 projects over the past 2 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
|
$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 Gregory Dedona Architect
This is a sample of this contractor's permits. Click here to access their complete permit history.
772 s.f addition at front entry front garage rear bedrooms and upper floor and attached rear deck to (e) 2 story single family dwelling with attached one car garage
Valuation:
$96,174
Permit #:
18014-10000-00251
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Exist. garage conversion to adu 2nd story addition over adu
Valuation:
$550,000
Permit #:
B2402-076
Status:
final
Fee:
$20,525
Permit Type:
New adu unit
Building Type:
N/A
Existing kitchen remodel - no structural or exterior changes
Valuation:
$100,000
Permit #:
B2402-073
Status:
issued
Fee:
$5,273
Permit Type:
Alter-sfd
Building Type:
N/A
Otc kitchen and bathrooms remodel
Valuation:
N/A
Permit #:
B-037852
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Residential nonstructural kitchen and bathroom
2021-11-01
Residential- remodel kitchen & bathroom
Valuation:
$43,000
Permit #:
B-042189
Status:
final
Fee:
$2,110
Permit Type:
N/A
Building Type:
N/A
Residential remodel and addition and new attached adu
Valuation:
N/A
Permit #:
B-035862
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Interior remodel vaulted ceiling and exterior siding
Valuation:
N/A
Permit #:
B-032997
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Remodel addition
Valuation:
N/A
Permit #:
B-034602
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Re-valuation
Valuation:
$24,967
Permit #:
REVAL-000238
Status:
final
Fee:
$452
Permit Type:
Residential
Building Type:
N/A
Revise the scope of work to correct the deck size to match approved plans from 237 sq ft to a totol of 930 sq ft. no other changes for the remain house addition. department error.
Valuation:
N/A
Permit #:
98014-30004-01505
Status:
Permit Finaled
Fee:
N/A
Permit Type:
1 or 2 Family Dwe...
Building Type:
(1) Dwelling - Si...
Addition of family room bedroom bathroom laundry & expand master be droom. ; sizes 45.67'x21.0 21'x15.5 and 14.6'x 6.0 (irregular). 237.0 sq ft. of deck
Valuation:
N/A
Permit #:
98014-30000-01505
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Revise the scope of work to correct the deck size to match approved plans from 237 sq ft to a totol of 930 sq ft. no other changes for the remain house addition. department error
Valuation:
N/A
Permit #:
98014-30004-01505
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Addition 3'x16.5'(irreg.) to kids bedroom and 5'x15 to connect existing garage to dwelling. addition bathroom to bed room above garage
Valuation:
N/A
Permit #:
98014-30003-01505
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Addition/remodel
Valuation:
N/A
Permit #:
B-034201
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Re-valuation
Valuation:
$329,899
Permit #:
REVAL-000035
Status:
final
Fee:
$8,067
Permit Type:
N/A
Building Type:
N/A
Excavation and backfill for retaining walls and site preparation 215 c.y. excavation and 50 c.y. backfill
Valuation:
N/A
Permit #:
98030-30000-01503
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Minor addition and new deck
Valuation:
N/A
Permit #:
B-031468
Status:
final
Fee:
N/A
Permit Type:
Additions/remodels
Building Type:
N/A
Addition to expand master bedroom size of addition : 25'-1 x 27'-0 addition a 9.5 x 19.5 trellis
Valuation:
N/A
Permit #:
98014-30000-02634
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Add loft in hobby room 10.5' x 13.0' . add exterior stairs from loft to the side of the building.
Valuation:
N/A
Permit #:
98014-30002-01505
Status:
Permit Expired
Fee:
N/A
Permit Type:
1 or 2 Family Dwe...
Building Type:
(1) Dwelling - Si...
289 sq. ft. addition & remodel
Valuation:
N/A
Permit #:
B-032734
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
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Gregory Dedona Architect License info
Verified License
| License # | C19868 |
| Status | Active |
| State | California |
| Type | Architect |
- BuildZoom has not verified this license since June, 2025.
Verify this license's status for Gregory Dedona Architect at the California Architect License Board.
This is a sample of licensing data; click here to access a complete history.
103
BuildZoom Score
17
Permits
- Building permit records show that Gregory Dedona Architect has worked on 17 permitted projects.
Gregory Dedona Architect Employees
DP
Dedona Gregory P
Owner