Updated: Jun 05, 2026
Location and Projects
Address
P O BOX 3115, Seal Beach, CA, 90740
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Radii Construction & Development
Based in Seal Beach, Radii Construction & Development brings nearly three decades of experience to residential and commercial construction projects. Serving clients in the Seal Beach area and surrounding Orange County communities, the company manages new construction, additions, and comprehensive renovations. Radii Construction & Development takes on a variety of property types, including single-family homes and commercial spaces, and emphasizes a project management approach designed to streamline both large and small builds. With 29 years in the industry, Radii Construction & Development is versed in coordinating all phases of construction, from design and planning through final completion. The company’s portfolio reflects expertise in both ground-up construction and upgrades to existing structures, supporting property owners in achieving their project goals.
Radii Construction & Development Services
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Radii Construction & Development Contact Information
Phone Number: (714) 425-8895
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Address: P O BOX 3115, Seal Beach, CA 90740
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Building Permits by Radii Construction & Development
This is a sample of this contractor's permits. Click here to access their complete permit history.
Commercial remodel 2 682 sq ft t. i. for us air force and us navy recruitment center demolish existing interior offices and building new. new tbar ceiling and insulation. addition new lighting ducting and registers
Valuation:
$149,920
Permit #:
B19-000-774
Status:
issued
Fee:
$4,545
Permit Type:
Offices
Building Type:
N/A
Remodel entire bathroom by removing existing spa tub and 3'x3 shower to make a larger 3'x5 shower new toilet new cabinet and sinks new exhaust fans and 2 new access light in (e) condo
Valuation:
$45,000
Permit #:
20016-30000-16816
Status:
final
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
Commercial remodel 1 323 sq ft t. i. for us marine corps recruiting office - demolish interior and building new ada restroom. building new walls for offices. construct new t-bar ceiling and insulation
Valuation:
$109,709
Permit #:
B19-000-775
Status:
issued
Fee:
$3,988
Permit Type:
Offices
Building Type:
N/A
Electric (bel) - cele - commercial electric
2022-01-06
Meter reset to mh park - rancho del sol - due to storm damage
Valuation:
N/A
Permit #:
BEL2102775
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Electric (bel) - cele - commercial electric
2023-09-15
Install (2) 6-meter main panels to a ground transformer located behind clubhouse. new conductors to each 6-meter main from the transformer and new conductors to each of the 12 homes. new junction boxes and grounding installed at each existing mobile home spaces: 12 13 14 15 16 17 18 19 20 23 24 & 25
Valuation:
N/A
Permit #:
BEL2202697
Status:
expired
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Construct 381 sf family room addition at the rear of an existing single-story single family dwelling. a new regency fireplace (decorative gas heating appliance) will be added. 1 gas piping 1 factory fireplace ("regency fireplace decorative gas heating appliance)
Valuation:
N/A
Permit #:
M04-00185
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Construct 381 sf family room addition at the rear of an existing single-story single family dwelling. a new regency fireplace (decorative gas heating appliance) will be added. 6 light fixtures 7 outlets 4 switches
Valuation:
N/A
Permit #:
E04-00383
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
R3 u1 addition mstr bedroom bth 3 4bth extend family room din room insulate everything demolish as built family room building new attach d 2 car garage 380sf
Valuation:
N/A
Permit #:
PLM03-00664
Status:
final
Fee:
$85
Permit Type:
N/A
Building Type:
N/A
R3 u1 addition mstr bedroom bth 3 4bth extend family room din room insulate everything demolish as built family room building new attach d 2 car garage 380sf
Valuation:
N/A
Permit #:
MEC03-00438
Status:
final
Fee:
$43
Permit Type:
N/A
Building Type:
N/A
R3 u1 addition mstr bedroom bth 3 4bth extend family room din room insulate everything demolish as built family room building new attach d 2 car garage 380sf
Valuation:
N/A
Permit #:
ELE03-00670
Status:
final
Fee:
$95
Permit Type:
N/A
Building Type:
N/A
Construct 391 sf family room addition at rear of existing single-story home & addition new regency fireplace (decorative gas heating appliance) @ new family room
Valuation:
$36,128
Permit #:
B04-00739
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Complete work on permits #88sp8529 & 88sp7621 80% remaining. permit expires nov. 10 1997 45 days to complete work per cna
Valuation:
N/A
Permit #:
97016-40000-21644
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Remodel restaurant wall area damaged by leaking aquarium replace sinks in bathrms fixtures/outlets addition pocket door to existing partition wall
Valuation:
N/A
Permit #:
00492508-PBP
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
R3 u1 addition mstr bedroom bth 3 4bth extend family room din room insulate everything demolish as built family room
Valuation:
N/A
Permit #:
BLD03-00632
Status:
final
Fee:
$2,645
Permit Type:
N/A
Building Type:
N/A
Close exist. 16'x7'gar. opening at front&install new 16'x7'gar.door.at rear
Valuation:
N/A
Permit #:
98016-40000-10257
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Addition interior non-bearing partions to create new offices and st0rage area
Valuation:
$6,000
Permit #:
B00-000-333
Status:
final
Fee:
$247
Permit Type:
Offices
Building Type:
N/A
R3 u1 addition of mstr bed bathroom family room rmdl raise steps garage
Valuation:
N/A
Permit #:
PLM04-01009
Status:
final
Fee:
$127
Permit Type:
N/A
Building Type:
N/A
R3 u1 addition of mstr bed bathroom family room rmdl raise steps garage
Valuation:
N/A
Permit #:
MEC04-00749
Status:
final
Fee:
$52
Permit Type:
N/A
Building Type:
N/A
R3 u1 addition of mstr bed bathroom family room rmdl raise steps garage
Valuation:
N/A
Permit #:
ELE04-01181
Status:
final
Fee:
$80
Permit Type:
N/A
Building Type:
N/A
Tenant improvements for offices of armed services
Valuation:
$25,000
Permit #:
B00-000-615
Status:
final
Fee:
$802
Permit Type:
Stores
Building Type:
N/A
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Verified License
BuildZoom confirmed this contractor's license
Radii Construction & Development License info
Verified License
| License # | 670036 |
| Status | Active |
| State | California |
| Type | General Building |
| Business Type | Sole Ownership |
- BuildZoom verified this license was active as of December 2025.
Verify this license's status for Radii Construction & Development at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | NAT-63665-3 |
| Status | Inactive |
| Nation | Environmental Protection Agency |
| Type | Renovation |
| Business Type | Sole Ownership |
- According to the United States Environmental Protection Agency, 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 Radii Construction & Development at the United States Environmental Protection Agency.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | NAT-63665-2 |
| Status | Inactive |
| Nation | Environmental Protection Agency |
| Type | Renovation |
| Business Type | Sole Ownership |
- According to the United States Environmental Protection Agency, 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 Radii Construction & Development at the United States Environmental Protection Agency.
This is a sample of licensing data; click here to access a complete history.
95
BuildZoom Score
Bonded
| Bonded Agent | American Contractors Indemnity Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | State Compensation Insurance Fund |
11
Permits
- Building permit records show that Radii Construction & Development has worked on 11 permitted projects.
Radii Construction & Development Employees
EP
Eng Han Phang
Owner