Updated: Apr 11, 2026
Location and Projects
Address
PMB 112 3559 MT DIABLO, Lafayette, CA, 94549
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Ar Construction
Based in Lafayette, California, Ar Construction serves residential clients throughout the greater Bay Area. With over two decades of experience, the company specializes in home additions, kitchen and bathroom remodels, and custom renovations tailored to each property’s needs. Project examples highlight updated kitchens with modern cabinetry and fixtures, as well as bathroom upgrades featuring new tile work and enhanced layouts. Ar Construction manages both interior and exterior projects, including deck construction and whole-home remodels for single-family homes. The firm places an emphasis on clear project management, working closely with homeowners from initial planning through completion. With a track record of completed projects in Lafayette and neighboring communities, Ar Construction is experienced in navigating local building codes and neighborhood requirements for home renovations and remodels.
Ar Construction Services
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Ar Construction Contact Information
Phone Number: (925) 255-6077
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Address: PMB 112 3559 MT DIABLO, Lafayette, CA 94549
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Ar Construction Lafayette
Quality
105
92nd percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Ar Construction has a BuildZoom score of 105, which places them above 92% of 336,931 contractors in California.
Activity
|
1 project
|
2025 |
|
5 projects
|
2024 |
|
8 projects
|
2023 |
Our building permit records indicate that Ar Construction 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
|
5 projects
|
New Constructions |
Analyzing permits over the last 4 years shows that Ar Construction mostly works on
new construction
projects.
Pricing
|
2 projects
|
$5k-$20k |
|
1 project
|
$20k-$50k |
|
2 projects
|
$50k-$100k |
|
1 project
|
$100k-$250k |
|
1 project
|
$250k-$500k |
|
1 project
|
$500k-$1mil |
The typical size of their permits is approximately $75,000. 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.
This is a sample of this contractor's permits. Click here to access their complete permit history.
New detached 1200 s.f. adu with 2 new decks. side deck is 427 s.f. and rear deck is 470 s.f **per title 24 report 2.10 kwdc photovoltaic system requried. separate permit and plans required. **hold final for photovoltaic permit and installation** **10/31/2023 strucutral revision**lguerrero new address of 3725 a deer trail ct has been assigned to a new adu being built on this property. ... see more
Valuation:
N/A
Permit #:
BIR23-008417
Status:
final
Fee:
$6,141
Permit Type:
N/A
Building Type:
N/A
Renovation of 3 bathrooms including remodeling of interior tiles taps sinks and shower. renovation of kitchen only backsplash replaced. replacement of binyl floor electrical work. new subpanel in garage. replaced plumbing in laundry room. [blce-2024-00205]
Valuation:
$50,000
Permit #:
BLDG-2024-03585
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Separate permit for wood deck adjacent to pool (same plans as bip23-000334)
Valuation:
N/A
Permit #:
BIMIR24-002977
Status:
expired
Fee:
$191
Permit Type:
N/A
Building Type:
N/A
New 745 sq ft detached adu.all electric. new 100amp subpanel. on same plans as bicr23-000158 1.70kw pvr system required per title 24 energy report *fire sprinklers required*
Valuation:
$98,000
Permit #:
BIR23-000157
Status:
final
Fee:
$7,145
Permit Type:
N/A
Building Type:
N/A
The construction of a new 3, 814 sq. ft. single-story single-family residence on a parcel at 4142 canyon road apn 247-150-003 1/26/2022 rev to change concrete patio to composite deck approx 2264 sf jcollignon/bwickham
Valuation:
$1,100,000
Permit #:
BIR21-010174
Status:
final
Fee:
$34,693
Permit Type:
N/A
Building Type:
N/A
Convert(e) detached 1319 sq ft garage #2 into a new 746 sq ft adu & 250 sq ft rec gym room. remaining 323 sq ft will remain as garage. *sprinklers required*
Valuation:
$150,000
Permit #:
BIR23-000663
Status:
issued
Fee:
$8,173
Permit Type:
N/A
Building Type:
N/A
Wrong work class/type - new detached adu 126 sf deck w pem
Valuation:
$400,000
Permit #:
W24-000799
Status:
withdrawn
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
New detached 1200 sf adu 126 sf deck w pem
Valuation:
$400,000
Permit #:
B24-017734
Status:
final
Fee:
$8,591
Permit Type:
N/A
Building Type:
N/A
Repair existing pool new gunite (structural repair only) per city planner this pool repair is exempted from planning approval
Valuation:
$75,000
Permit #:
BISUB23-00202
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Building/residential/mir/miscellaneous residential
2023-03-06
Install of four new outdoor gas heaters extending existing out door gas line 5 ft. no trenching. install of wall mounted wall control
Valuation:
$5,000
Permit #:
BIMIR23-002441
Status:
final
Fee:
$526
Permit Type:
N/A
Building Type:
N/A
Install of four new outdoor gas heaters extending existing out door gas line 5 ft. no trenching. install of wall mounted remote outlet
Valuation:
$5,000
Permit #:
BISUB23-00321
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Construction of new adu (1200 sqft)
Valuation:
N/A
Permit #:
BISUB23-01471
Status:
applied
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
New 590 sq ft unconditioned storage accessory building. on same plans as bir23-000157
Valuation:
$98,000
Permit #:
BICR23-000158
Status:
final
Fee:
$1,441
Permit Type:
N/A
Building Type:
N/A
New detached 1 200 sf adu 7/24/24 rev 1 site plan revised including deck stairs and location of adu jcollignon/anna vongsing
Valuation:
N/A
Permit #:
BIR23-012772
Status:
issued
Fee:
$10,316
Permit Type:
N/A
Building Type:
N/A
New pool and retaining wall ** see bimir23-006872 for retaining wall**
Valuation:
N/A
Permit #:
BIP23-006869
Status:
plancheck
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
New detached 1 200 sf adu
Valuation:
N/A
Permit #:
BISUB23-03284
Status:
applied
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Building/residential/mir/miscellaneous residential
2023-06-06
New pool and retaining wall ** see bip23-006869 for pool**
Valuation:
N/A
Permit #:
BIMIR23-006872
Status:
plancheck
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
58 lf retaining walls max height 6 ft
Valuation:
$30,000
Permit #:
W24-000827
Status:
approved
Fee:
$462
Permit Type:
N/A
Building Type:
N/A
Repair existing pool new gunite adding hot tub
Valuation:
$75,000
Permit #:
BIP23-002408
Status:
withdrawn - no activity
Fee:
$2,868
Permit Type:
N/A
Building Type:
N/A
Remove existing bearing walls in dining room and addition new beams and columns remove fire place
Valuation:
$10,000
Permit #:
BISUB24-01208
Status:
intake submittal
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
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Ar Construction Reviews
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Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
Ar Construction License info
Verified License
| License # | 1144718 |
| Status | Active |
| State | California |
| Type | General Building |
| Date Issued | 10-08-2025 |
| Business Type | Sole Ownership |
- BuildZoom verified this license was active as of April 2026.
Verify this license's status for Ar Construction at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 1093898 |
| Status | Active |
| State | California |
| Type | General Building |
| Business Type | Sole Ownership |
- BuildZoom verified this license was active as of March 2026.
Verify this license's status for Ar Construction at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 1082482 |
| Status | Inactive |
| State | California |
| Type | General Building |
| Business Type | Sole Ownership |
- 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 Ar Construction 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 | This License Filed A Contractor's Bond With |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | Clear Spring Property & Casualty Company |
14
Permits
- Building permit records show that Ar Construction has worked on 14 permitted projects.
Ar Construction Employees
AJ
Arash Erfani Joorabchi
Rmo / Ceo / Pres
AJ
Arash Erfani Joorabchi
Rmo / Ceo / Pres