Updated: Mar 27, 2026
Location and Projects
Address
P O BOX 2135, Folsom, CA, 95673
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Group One Builders Construction
Group One Builders Inc, Folsom, Po Box 2135, Folsom, CA (Employees: Ian Grover Worley and Michael Dean Robinson) holds a General Building license according to the California license board.
Their BuildZoom score of 106 ranks in the top 7% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Group One Builders Inc, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Group One Builders Inc Services
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Group One Builders Inc Contact Information
Phone Number: (916) 983-9953
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Address: P O BOX 2135, Folsom, CA 95673
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Group One Builders Inc Folsom
Quality
106
93rd percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Group One Builders Inc has a BuildZoom score of 106, which places them above 93% of 336,931 contractors in California.
Activity
|
4 projects
|
2025 |
|
2 projects
|
2024 |
|
1 project
|
2023 |
Our building permit records indicate that Group One Builders Inc has worked on at least
7.0 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
|
Home Additions |
Analyzing permits over the last 4 years shows that Group One Builders Inc mostly works on
home addition
projects.
Pricing
|
1 project
|
$5k-$20k |
|
2 projects
|
$20k-$50k |
|
2 projects
|
$100k-$250k |
|
1 project
|
$500k-$1mil |
The typical size of their permits is approximately $45,000. 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 Group One Builders Inc
This is a sample of this contractor's permits. Click here to access their complete permit history.
Bathroom: r/r cabinets/counters plumbing/electrical fixtures and relocate water repipe dwv repipe electrical rewire. water conserving fixtures are required to be installed throughout this residence per sb 407 (note: residences built after january 1 1994 are exempt). carbon monoxide & smoke alarms required. reference crc sections r315 & r314. all work subject to field inspection
Valuation:
$36,500
Permit #:
RES-2505477
Status:
issued
Fee:
$397
Permit Type:
N/A
Building Type:
N/A
House alteration garage conversion to living space/adu (no new sqft) kitchen/bath remodel
2025-03-24
Complete master bathroom remodel including plumbing electrical and all finishes. existing vanity counter and plumbing to remain as exists
Valuation:
$40,000
Permit #:
CBAR2025-00123
Status:
final
Fee:
$769
Permit Type:
Alteration - remodel
Building Type:
N/A
Building addition adu deck patio cover garage barn ground mount solar light pole masonry wall
2023-11-21
New single family residence approx 3240 sqft ch-01 re-arrange modules and substitute materials
Valuation:
$860,000
Permit #:
CBNR2022-01263
Status:
complete
Fee:
$71,089
Permit Type:
N/A
Building Type:
N/A
New building addition adu (not a garage conversion) deck patio cover garage barn ground mount solar
2025-06-26
Addition roof per plans to cover existing deck. existing deck will cease to exist
Valuation:
$18,000
Permit #:
CBNR2025-00126
Status:
final
Fee:
$874
Permit Type:
N/A
Building Type:
N/A
New building addition adu (not a garage conversion) deck patio cover garage barn ground mount solar
2024-07-29
Master bedroom-bath addition minor remodeling in existing residence
Valuation:
$212,000
Permit #:
CBNR2024-00071
Status:
complete
Fee:
$5,152
Permit Type:
N/A
Building Type:
N/A
Lc 4-4-2022 ch-01 - remove beam at existing sliding glass door in family room and replace with an engineered parallam beam. install a new 15'9 wide slider door underneath
Valuation:
N/A
Permit #:
CBAR2022-00091-01
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
New dwelling new duplex additions accessory dwelling unit decks patio cover garages gazebos carport
2019-09-12
Remodel of approximately 1918sf of existing living area and addition of 65 new sf renovation includes replacing 13 windows all flooring new cabinets tile carpet paint appliances etc. service panel relocated 200 amp service with some new electrical ( outlets lighting etc. ) new plumbing as required new duct work and plenum new insulation at all open walls and ceilings exterior refinish... see more
Valuation:
$168,500
Permit #:
CBNR2019-00085
Status:
complete
Fee:
$3,646
Permit Type:
Addition remodel
Building Type:
N/A
768 sqft addition to rear of existing home remode
Valuation:
$174,000
Permit #:
2021-01585
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Residential: full review - additions adu accessory structures pools remodel demolish generators and
2020-10-29
R-3/u **electronic submittal** vb 297 sq ft addition 1100 sq ft +- kitchen bathrooms and laundry remodel replace windows new direct vent gas fireplace lra - no wui non sprinkled
Valuation:
$142,238
Permit #:
BLD20-01904
Status:
complete
Fee:
$1,845
Permit Type:
Addition
Building Type:
N/A
Residential: full review - additions adu accessory structures pools remodel demolish generators and
2024-10-24
Install new barn 1728 sq ft w electrical *finishing bathroom shown on original floor plan as future- jim w **driveway over 150
Valuation:
$107,672
Permit #:
BLD24-02997
Status:
complete
Fee:
$2,422
Permit Type:
Accessory
Building Type:
N/A
Replace 13 windows with new construction windows interior remodel 2 bathrooms and 1 laundry room new flooring whole house refer to plans for complete breakdown of scope of work
Valuation:
$81,400
Permit #:
CBAR2019-00055
Status:
complete
Fee:
$1,314
Permit Type:
Minor alteration ...
Building Type:
N/A
Epc-new rear deck with electrical
Valuation:
N/A
Permit #:
DECK22-00526
Status:
final
Fee:
$514
Permit Type:
Deck
Building Type:
N/A
New dwelling new duplex additions accessory dwelling unit decks patio cover garages gazebos carport
2018-10-17
Remodel of existing master bedroom with partition of closet walls non bearing interior bathroom closet adding 138 sq ft of new closet relocate existing hvac no replacement:
Valuation:
$26,500
Permit #:
CBNR2018-00839
Status:
complete
Fee:
$988
Permit Type:
Addition remodel
Building Type:
N/A
Residential/single-family/duplex - change order
2023-12-07
Ch-01 re-arrange modules and substitute materials
Valuation:
N/A
Permit #:
CBNR2022-01263-01
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Rvsn 22-00526 delete stair replace 2 windows w/doors
Valuation:
N/A
Permit #:
REVS22-03834
Status:
final
Fee:
$303
Permit Type:
Residential
Building Type:
N/A
Residential: limited review - electrical mechanical plumbing roof solar etc
2020-10-20
New gas line to new fire pit 120 trenching
Valuation:
$3,000
Permit #:
BLD20-05534
Status:
expired
Fee:
$150
Permit Type:
Alteration
Building Type:
N/A
Master bathroom remodel
Valuation:
N/A
Permit #:
-0317447
Status:
issued
Fee:
$412
Permit Type:
Alteration/repair
Building Type:
N/A
Kitchen remodel
Valuation:
$38,400
Permit #:
CBAR2019-00740
Status:
complete
Fee:
$1,461
Permit Type:
Alteration - remodel
Building Type:
N/A
2nd stry deck addition
Valuation:
$18,500
Permit #:
DECK18-03178-0
Status:
complete
Fee:
N/A
Permit Type:
Residence. Deck
Building Type:
Residential sf sm...
Remodel existing dwelling: includes removal of kitchen cabinets countertops appliances windows and door dining area removal of floor joist with structural calc's electrical finishes furnace and ducting in attic partitions to be removed in kitchen master bathroom to replace existing toilet and tub hall closets: exterior siding patch work around removal of windows
Valuation:
$142,000
Permit #:
CBAR2019-00396
Status:
complete
Fee:
$3,410
Permit Type:
Alteration - remodel
Building Type:
N/A
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Group One Builders Inc Reviews
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Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
Group One Builders Inc License info
Verified License
| License # | 668907 |
| Status | Active |
| State | California |
| Type | General Building |
| Business Type | Corporation |
- BuildZoom verified this license was active as of March 2026.
Verify this license's status for Group One Builders Inc at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
106
BuildZoom Score
Bonded
| Bonded Agent | American Contractors Indemnity Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | State Compensation Insurance Fund |
78
Permits
- Building permit records show that Group One Builders Inc has worked on 78 permitted projects.
Group One Builders Inc Employees
IW
Ian Grover Worley
Officer
MR
Michael Dean Robinson
Rmo / Ceo / Pres