Updated: Nov 03, 2025
Location and Projects
Address
29252 ALFIERI ST., Laguna Niguel, CA, 92677
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Castanos Oscar Architect
Castanos Oscar, 29252 Alfieri St, Laguna Niguel, CA holds a Architect license according to the California license board.
Their BuildZoom score of 94 ranks in the top 24% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Castanos Oscar, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Castanos Oscar Services
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Castanos Oscar Contact Information
Address: 29252 ALFIERI ST., Laguna Niguel, CA 92677
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Castanos Oscar Laguna Niguel
Quality
94
76th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Castanos Oscar has a BuildZoom score of 94, which places them above 76% of 336,931 contractors in California.
Activity
|
3 projects
|
2025 |
Our building permit records indicate that Castanos Oscar has worked on at least
3.0 projects over the past year.
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
|
2 projects
|
< $5k |
|
3 projects
|
$20k-$50k |
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.
Eplan: convert (e) bedroom with new 27 x 12 addition to new junior accessory dwelling unit per gc66323(a)(1) and66333. per engineer. comply with department order effective date 12/10/2021. permit will expire 30 days from issuance date
Valuation:
$30,000
Permit #:
25014-10000-02170
Status:
triage
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Alteration and remodel of retail store: 1) interior remodel new interior beam 2) change windows same site with engineer design remove all unpermitted work. restore to approved condition comply with department order effective date 11/08/2021. permit will expire 30 days from issuance date. ceis case number is 936973
Valuation:
N/A
Permit #:
21016-10000-55516
Status:
applied
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
New 1-story 2-car garage comply with department order effective date 08/05/2021. permit will expire 30 days from issuance date
Valuation:
$35,000
Permit #:
22010-10000-00925
Status:
complete
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Grading to excavate for new garage comply with department order effective date 08/05/2021. permit will expire 30 days from issuance date
Valuation:
$115
Permit #:
22030-10000-01333
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Addtion to (e) 2-story single family dwelling
Valuation:
N/A
Permit #:
19014-10000-02134
Status:
triage
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Addition 18'-0 x 26'-2 irr [472 sf] (2) bedroom and remodel (e) single family dwelling [permit# 1940la43627 and 1950la1977 02010-10000-02677] resulting to 2-bdrm 1-bath single family dwelling per la standard type v sheet
Valuation:
N/A
Permit #:
06014-10000-05816
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Supplemental to permit #10016-10000-13808 to revise floor plan and update structural inventory on permit #10016-10000-13808
Valuation:
N/A
Permit #:
10016-10001-13808
Status:
final
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
Convert existing manager office to a dwelling unit in existing 3 story apartment building; za 2009-2748
Valuation:
N/A
Permit #:
10016-10000-13808
Status:
issued
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
Centre city; partition wall electrical mech.-hvac no new plumbing. for existing office space****ccdc-h
Valuation:
$0
Permit #:
365924
Status:
Completed
Fee:
N/A
Permit Type:
N/A
Building Type:
Add/alt tenant im...
Residential addition of 224 sq ft for bedroom and walk in closet at rear of house. remove 1'2 x 20 edge of existing patio cover. demolish 322 sqft driveway and demolish 151 sq ft. brick pavers. replace existing sliging glass door at master bedroom. install new 252 sq ft driveway new 81 sq ft walkway front landing 58 sq ft & rear landing 40 sq ft = 431 sq ft concrete. relocate air cond... see more
Valuation:
$26,501
Permit #:
BLD-17-01525
Status:
complete
Fee:
$1,593
Permit Type:
N/A
Building Type:
N/A
Rear addition to existing 1 story single family dwelling per wfpp
Valuation:
$35,000
Permit #:
25014-10000-04133
Status:
triage
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Convert existing detached garage to storage
Valuation:
$1,000
Permit #:
25016-10000-27656
Status:
triage
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
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Castanos Oscar License info
Verified License
| License # | C26619 |
| Status | Active |
| State | California |
| Type | Architect |
- BuildZoom has not verified this license since July, 2025.
Verify this license's status for Castanos Oscar at the California Architect License Board.
This is a sample of licensing data; click here to access a complete history.
94
BuildZoom Score
9
Permits
- Building permit records show that Castanos Oscar has worked on 9 permitted projects.
Castanos Oscar Employees
CO
Castanos Oscar
Owner