Updated: Dec 11, 2025
Location and Projects
Address
446 CLAUDIA DR, Sonoma, CA, 95476
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Alden Architecture
Alden Architecture, 446 Claudia Dr, Sonoma, CA (Owned by: Alden William Jason) holds a Architect license and 1 other license according to the California license board.
Their BuildZoom score of 100 ranks in the top 13% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Alden Architecture, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Alden Architecture Services
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Alden Architecture Contact Information
Phone Number: (415) 531-0518
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Address: 446 CLAUDIA DR, Sonoma, CA 95476
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Alden Architecture Sonoma
Quality
100
87th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Alden Architecture has a BuildZoom score of 100, which places them above 87% of 336,931 contractors in California.
Activity
|
2 projects
|
2025 |
|
1 project
|
2024 |
|
4 projects
|
2023 |
Our building permit records indicate that Alden Architecture has worked on at least
7.0 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
|
New Constructions |
Analyzing permits over the last 4 years shows that Alden Architecture mostly works on
new construction
projects.
Pricing
|
1 project
|
< $5k |
|
1 project
|
$5k-$20k |
|
1 project
|
$100k-$250k |
|
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.
This is a sample of this contractor's permits. Click here to access their complete permit history.
Revision to pa #202408209060 minor revise and expanded rear yard design inlcuding deck and retaining wall. (deck less than 3 ft on grade) revise hot tub to included cold plunge area
Valuation:
$12,000
Permit #:
202504285338
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
Remodel to an (e) 2 story single family dwelling. project consists of an interior remodel of both floor levels replacment of windows and exterior doors new rear yard deck and landscaping.no increase of in building conditioned area volume or size
Valuation:
$200,000
Permit #:
202408209060
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
Interior alteration of an extg 3 level house. new roof deck/garden new trash 1 hvac enclosure new gate at driveway east window changes at ground floor removal of one garage door and new window on north facade. new emergency generator under separate permit
Valuation:
$480,000
Permit #:
201611102416
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
Landscape strucs: int & seat walls firepit trash enc
Valuation:
N/A
Permit #:
BP20-00243
Status:
final
Fee:
N/A
Permit Type:
Landscape strs
Building Type:
N/A
Landscape screening/add two trees
Valuation:
N/A
Permit #:
BP23-00431
Status:
final
Fee:
N/A
Permit Type:
Other
Building Type:
N/A
Covered dining pavilion
Valuation:
N/A
Permit #:
BP20-00231
Status:
final
Fee:
N/A
Permit Type:
Pool house
Building Type:
N/A
Guest house w covered porch
Valuation:
N/A
Permit #:
BP20-00226
Status:
final
Fee:
N/A
Permit Type:
Guest house
Building Type:
N/A
New security gate at front entry
Valuation:
$2,019
Permit #:
202508213658
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
New full bathroom & media room on lower floor basement
Valuation:
$59,671
Permit #:
201907246759
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
Minor landscape structures: int fences planter boxes
Valuation:
N/A
Permit #:
BP20-00245
Status:
final
Fee:
N/A
Permit Type:
Landscape strs
Building Type:
N/A
New residence w basement
Valuation:
N/A
Permit #:
BP20-00230
Status:
final
Fee:
N/A
Permit Type:
W/basement
Building Type:
N/A
Temporary storage structure
Valuation:
N/A
Permit #:
BP19-00945
Status:
expired
Fee:
N/A
Permit Type:
Other
Building Type:
N/A
New natural gas powered emergency generator at lower level
Valuation:
$25,000
Permit #:
201707121669
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
Expansion of (e) approved roof deck to 460 sqft
Valuation:
$20,000
Permit #:
201704063393
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
Revision to approved pa 201611102416 due to structural changes in the field. no exterior work
Valuation:
$1
Permit #:
201703060715
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
Welo new 25361
Valuation:
N/A
Permit #:
BP17-00629
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Generator
Valuation:
N/A
Permit #:
BP20-00228
Status:
final
Fee:
N/A
Permit Type:
Generator
Building Type:
N/A
New guest house
Valuation:
N/A
Permit #:
BP22-00857
Status:
final
Fee:
N/A
Permit Type:
Guest house
Building Type:
N/A
Addition & remodel interior w new terrace
Valuation:
N/A
Permit #:
BP18-00503
Status:
final
Fee:
N/A
Permit Type:
Remodel/add
Building Type:
N/A
Landscape screening
Valuation:
N/A
Permit #:
BP21-00294
Status:
final
Fee:
N/A
Permit Type:
New residence
Building Type:
N/A
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Alden Architecture Reviews
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Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
Alden Architecture License info
Verified License
| License # | C34523 |
| Status | Active |
| State | California |
| Type | Architect |
- BuildZoom has not verified this license since April, 2025.
Verify this license's status for Alden Architecture at the California Architect License Board.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | C34523 |
| Status | Active |
| Town | Atherton |
| Type | Architect, Licensed Architect |
- When BuildZoom last verified this license, it had an expiration date of April, 2015. Check the current license status of Alden Architecture with the The Town of Atherton, CA
This is a sample of licensing data; click here to access a complete history.
100
BuildZoom Score
10
Permits
- Building permit records show that Alden Architecture has worked on 10 permitted projects.
Alden Architecture Employees
AJ
Alden William Jason
Owner