Updated: Feb 27, 2026
Location and Projects
Address
12885 ALCOSTA BOULEVARD #A, San Ramon, CA, 94583
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Castle West Construction Inc
Serving San Ramon and surrounding areas, Castle West Construction Inc specializes in custom home building and large-scale residential remodels. With 26 years in business, the company works closely with homeowners, architects, and designers to deliver project types such as new home construction, additions, and extensive renovations. Castle West Construction’s portfolio includes high-end single-family residences and complex home remodels, emphasizing detailed site management and collaboration throughout each phase of construction. The firm has experience managing projects from initial planning and permitting through to completion, offering guidance on material selection and architectural integration. Castle West Construction focuses on building homes that align with client specifications, consistently completing projects in San Ramon, Danville, Alamo, and the greater East Bay.
Castle West Construction Inc Services
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Castle West Construction Inc Contact Information
Phone Number: (925) 328-1000
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Address: 12885 ALCOSTA BOULEVARD #A, San Ramon, CA 94583
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Castle West Construction Inc San Ramon
Quality
105
92nd percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Castle West Construction Inc has a BuildZoom score of 105, which places them above 92% of 336,931 contractors in California.
Activity
|
8 projects
|
2025 |
|
1 project
|
2024 |
|
5 projects
|
2023 |
Our building permit records indicate that Castle West Construction Inc has worked on at least
14.0 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
|
6 projects
|
New Constructions |
|
4 projects
|
Commercial Renovations |
Analyzing permits over the last 4 years shows that Castle West Construction Inc mostly works on
new construction
and commercial renovation
projects.
Pricing
|
1 project
|
< $5k |
|
2 projects
|
$20k-$50k |
|
2 projects
|
$50k-$100k |
|
1 project
|
$100k-$250k |
The typical size of their permits is approximately $60,000. 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 Castle West Construction Inc
This is a sample of this contractor's permits. Click here to access their complete permit history.
Redwood rd subdivision plan 2a lot 2
Valuation:
N/A
Permit #:
B2505-0051
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Redwood rd subdivision plan 1a lot 1
Valuation:
N/A
Permit #:
B2505-0050
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Re-roof - remove lightweight tile replace plywood due to dryrot reinstall existing lightweight tile
Valuation:
$75,000
Permit #:
R25-008329
Status:
final
Fee:
$928
Permit Type:
N/A
Building Type:
N/A
Re-roof - remove lightweight tile replace plywood due to dryrot reinstall existing lightweight tile
Valuation:
$75,000
Permit #:
R25-008328
Status:
final
Fee:
$928
Permit Type:
N/A
Building Type:
N/A
Redwood rd subdivision plan 1a lot 4
Valuation:
N/A
Permit #:
B2508-0053
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Redwood rd subdivision plan 2a lot 5
Valuation:
N/A
Permit #:
B2508-0056
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Redwood rd subdivision plan 2b lot 3
Valuation:
N/A
Permit #:
B2508-0055
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Redwood rd subdivision plan 1b lot 6
Valuation:
N/A
Permit #:
B2508-0054
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Exterior entry fence and wall for new subdivision at 977 danville blvd. 94'6 along lot 1 (11 xavier ct) and 112 along lot 6 (10 xavier ct). stucco finish coat over 6 wall above soil. height of soil over toe 12 with 12 footing depth
Valuation:
$20,000
Permit #:
BIMIR23-007226
Status:
issued
Fee:
$791
Permit Type:
N/A
Building Type:
N/A
Tenant improvement - swan medical center ste 130
Valuation:
$185,000
Permit #:
B24-017587
Status:
final
Fee:
$3,930
Permit Type:
N/A
Building Type:
N/A
Tenant improvement - face reality w/pem
Valuation:
$450,000
Permit #:
B20-015044
Status:
final
Fee:
$7,258
Permit Type:
N/A
Building Type:
N/A
Remodel interior of existing condo like for like w/pe
Valuation:
$40,000
Permit #:
B23-017152
Status:
final
Fee:
$1,248
Permit Type:
N/A
Building Type:
N/A
Ti- orthopedic medical center
Valuation:
$120,000
Permit #:
B22-016447
Status:
final
Fee:
$3,079
Permit Type:
N/A
Building Type:
N/A
New single family residence plan 2 on parcel b 3885 sq ft habitable space 724 sq ft attached garage 148 sq ft covered patio
Valuation:
N/A
Permit #:
BIR18-003648
Status:
final
Fee:
$19,034
Permit Type:
N/A
Building Type:
N/A
New single family residence plan 1 for parcel a 3054 sq ft habitable space 448 sq ft attached garage 120 sq ft covered patio
Valuation:
N/A
Permit #:
BIR18-003647
Status:
final
Fee:
$16,733
Permit Type:
N/A
Building Type:
N/A
New single family home for verna way castle west construction plan 2c mediterranean tract 9419 lot 2
Valuation:
N/A
Permit #:
BIR18-001458
Status:
final
Fee:
$7,960
Permit Type:
N/A
Building Type:
N/A
New single family home for verna way castle west construction plan 2b craftsman tract 9419 lot 1
Valuation:
N/A
Permit #:
BIR18-001201
Status:
final
Fee:
$9,666
Permit Type:
N/A
Building Type:
N/A
New single family home for verna way castle west construction plan 1a farmhouse tract 9419 lot 3
Valuation:
N/A
Permit #:
BIR18-001199
Status:
final
Fee:
$8,718
Permit Type:
N/A
Building Type:
N/A
New single family home for verna way castle west construction plan 2b craftsman tract 9419 lot 4
Valuation:
N/A
Permit #:
BIR18-001501
Status:
final
Fee:
$7,960
Permit Type:
N/A
Building Type:
N/A
New single family home for verna way castle west construction plan 1ax farmhouse tract 9419 lot 6
Valuation:
N/A
Permit #:
BIR18-001499
Status:
final
Fee:
$7,202
Permit Type:
N/A
Building Type:
N/A
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Castle West Construction Inc Reviews
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Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
Castle West Construction Inc License info
Verified License
| License # | 0086554 |
| Status | Active |
| State | Nevada |
| Type | B 2 Residential And Small Commercial |
| Business Type | Corporation |
- BuildZoom verified this license was active as of February 2026.
Verify this license's status for Castle West Construction Inc at the Nevada State Contractors Board.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 746382 |
| Status | Active |
| State | California |
| Type | General Building |
| Business Type | Corporation |
- BuildZoom verified this license was active as of January 2026.
Verify this license's status for Castle West Construction Inc at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 255632 |
| Status | Inactive |
| State | California |
| Type | General Building |
| Business Type | Corporation |
- According to the California Contractors State License Board, the status of this license was at one point cancelled. However, this information may have changed. If this is your business, please update your license status.
Check this license's status for Castle West Construction Inc at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
105
BuildZoom Score
Bonded
| Bonded Agent | Suretec Insurance Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | State Compensation Insurance Fund |
138
Permits
- Building permit records show that Castle West Construction Inc has worked on 138 permitted projects.
Castle West Construction Inc Employees
BR
Baldacci, Louis Randolph
President Treasurer Secretary
JB
James Frederick Baldacci
Officer
LB
Louis Randolph Baldacci
Officer
PJ
Paul Ruppert Baldacci Jr
Rmo / Ceo / Pres
TB
Thomas Augustine Baldacci
Officer