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Updated: May 23, 2026
Location and Projects
Address
638 CAMINO DE LOS MARES #H130-513, San Clemente, CA, 92673
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Diamond Construction and Design Engineer
Diamond Construction and Design, 638 Camino De Los Mares, San Clemente, CA (Owned by: ADRIAN ONUFREI, STELIAN ONUFREI) holds a General Building, General Engineering license and 1 other license according to the California license board.
Their BuildZoom score of 102 ranks in the top 11% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Diamond Construction and Design, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Diamond Construction and Design Services
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Diamond Construction and Design Contact Information
Phone Number: (971) 373-2454
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Address: 638 CAMINO DE LOS MARES #H130-513, San Clemente, CA 92673
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Diamond Construction and Design San Clemente
Quality
102
89th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Diamond Construction and Design has a BuildZoom score of 102, which places them above 89% of 336,931 contractors in California.
Activity
|
5 projects
|
2023 |
Our building permit records indicate that Diamond Construction and Design has worked on at least
5.0 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.
Pricing
|
2 projects
|
$20k-$50k |
|
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.
Building Permits by Diamond Construction and Design
This is a sample of this contractor's permits. Click here to access their complete permit history.
Plug (e) driveway construct alley approach remove/repair sidewalk curbs & re-install red-curb (coordinate w/traffic engineering) x2021-1297
Valuation:
$693,550
Permit #:
N2023-0321
Status:
final
Fee:
$817
Permit Type:
N/A
Building Type:
N/A
**as-built** r3/u1: remodel kitchen and (2) bathroom. change out (2) windows. like for like. **there shall be no reduction of opening area in egress windows** *no other remodeling to be done**
Valuation:
$25,000
Permit #:
BLD18-02303
Status:
complete
Fee:
$2,657
Permit Type:
N/A
Building Type:
N/A
Patio cover: 375 sq ft open alumawood patio cover to be half solid and half lattice with electrical. iapmo 195
Valuation:
$3,500
Permit #:
BLD2018-00181
Status:
final
Fee:
N/A
Permit Type:
Patio cover
Building Type:
N/A
(city project) installation of a new freestanding steel shade structure (18 x 16 ; 288 sf ; solid roof) in vintage park. also install a retaining wall (approx. 125 lf with max height of 5'8 approx. 690 sf)
Valuation:
$34,000
Permit #:
COMB-12-22-58495
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Addition 660 sf; expansion for (n) kitchen and family room convert family room to (n) bedroom & bathroom (435 sf). new 2nd floor walk in closet (225 sf). interior remodel; expand laundry room & remodel bathroom ***** 5 bedrooms and 3.5 bathrooms ***** *** 03/25/19 jv - sup; main panel upgrade 100 to 200 amps. *** entered by: kongs
Valuation:
N/A
Permit #:
C2018-006416
Status:
final
Fee:
$3,447
Permit Type:
N/A
Building Type:
N/A
Plan check only application for revision to previously approved plans. revised gas piping to polythylene for underground portion and added sizing table
Valuation:
N/A
Permit #:
13042-10002-24995
Status:
approved
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Single family residence (n) 115 long by 32 max high retaining walls iside p./l *markers onsite*. (n) bbq with gas line. (x2021-1297)
Valuation:
$21,000
Permit #:
XR2023-1126
Status:
final
Fee:
$859
Permit Type:
N/A
Building Type:
N/A
Addition new 699 sf (2bed/2bath) 2nd unit/add new 788 sf structure for (2) 1 car garages & workshop
Valuation:
$125,000
Permit #:
16-0149
Status:
final
Fee:
$2,933
Permit Type:
N/A
Building Type:
N/A
Plan check only application for revision to previously approved plans. added/removed plumbing fixtures
Valuation:
N/A
Permit #:
13042-10002-24991
Status:
approved
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Private fire service for building sprinkler system approved under 03043 20000 01523. 6 fire service with detector check no backflow protection. class 200 pipe. static water pressure of 158 high 113 low per sar. location of fdc shall be approved by the fire department
Valuation:
N/A
Permit #:
04043-20000-01375
Status:
final
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
Repair/replace sewer main on private property. install new clean out. separate permit required for work in right of way
Valuation:
N/A
Permit #:
16-0551
Status:
expired
Fee:
$90
Permit Type:
N/A
Building Type:
N/A
New 8 fire service including one (1) fire hydrant and 8 dc backflow preventer
Valuation:
N/A
Permit #:
15043-10000-03041
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
330 lf x 6'h block wall - city standard * (2) 6'h pilasters - city standard
Valuation:
N/A
Permit #:
B1602612
Status:
ISSUED
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Temporary power: piggyback to main panel
Valuation:
$400
Permit #:
ELEC-2016-1004
Status:
expired
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Refurbishing park equipment & exercise equipment for vintage & sundowners parks
Valuation:
N/A
Permit #:
ENCRH-07-22-55532
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Plan check only application for revision to previously approved plans. added/removed plumbing fixtures
Valuation:
N/A
Permit #:
13042-10001-24995
Status:
approved
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Plan check only application for revision to previously approved plans. added/removed plumbing fixtures
Valuation:
N/A
Permit #:
13042-10001-24991
Status:
approved
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Deferred fire permit to project #222205 approval #791490 for new underground fire line and new backflow preventor per rpda
Valuation:
N/A
Permit #:
858424
Status:
issued
Fee:
$626
Permit Type:
N/A
Building Type:
N/A
New 8 fire service including one (1) fire hydrant and 8 dc backflow preventer
Valuation:
N/A
Permit #:
15043-10000-03041
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Permit to reconstruct 3 existing sewer laterals to property
Valuation:
N/A
Permit #:
ENG11-00033
Status:
final
Fee:
$1,300
Permit Type:
Construction
Building Type:
N/A
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Diamond Construction and Design Reviews
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Diamond Construction and Design License info
Verified License
| License # | 521295 |
| Status | Active |
| State | California |
| Type | General Building, General Engineering |
| Business Type | Partnership, Corporation |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Diamond Construction and Design at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 1022803 |
| Status | Inactive |
| State | California |
| Type | General Engineering |
| Business Type | Partnership, 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 Diamond Construction and Design at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
102
BuildZoom Score
Bonded
| Bonded Agent | Wesco Insurance Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | Falls Lake Fire & Casualty Company |
20
Permits
- Building permit records show that Diamond Construction and Design has worked on 20 permitted projects.
Diamond Construction and Design Employees
AO
Adrian O'brian
Ceo / President
AO
Adrian Onufrei
General Partner
AO
ADRIAN ONUFREI, STELIAN ONUFREI
Owner
SO
Stelian Onufrei
Rmo
SO
Stelian Onufrei
Qualify Partner