Updated: Dec 15, 2025
Location and Projects
Address
Portland, OR, 97239
Use our bidding system to
request a quote
Diamond Custom Construction Carpenter
Diamond Custom Construction LLC, (Employee: Grosmick, Chris Allen) holds a license according to the Oregon license board.
Their BuildZoom score of 97 ranks in the top 18% of 62,733 Oregon licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Diamond Custom Construction LLC, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Diamond Custom Construction LLC Services
Start a project today:
Diamond Custom Construction LLC Contact Information
Phone Number: (503) 380-7824
Edit
Do you work for this business? Unlock this free profile to update company info and see who's viewing your profile.
Building Permits by Diamond Custom Construction LLC
This is a sample of this contractor's permits. Click here to access their complete permit history.
Single pdf - addition of 13 ft x10 ft at back of house. remodel to create an office laundry room and a half-bath (2 toilets total). reduce interior space of attached garage**et mt and pt permits separate
Valuation:
N/A
Permit #:
2025-066250-000-00-RS
Status:
filed
Fee:
N/A
Permit Type:
Addition
Building Type:
N/A
Single pdf - convert basement to habitable space to include bedroom with egress window well; remove half bathroom and create full bathroom (2 total). rebuild interior stairs**et mt and pt separate
Valuation:
N/A
Permit #:
2025-070320-000-00-RS
Status:
approved
Fee:
N/A
Permit Type:
Alteration
Building Type:
N/A
Alteration to convert portion of finished basement laundryroom into bathroom and wet bar sink in the finished family room.*** electrical plumbing permits were obtained separately***
Valuation:
N/A
Permit #:
2018-177050-000-00-RS
Status:
final
Fee:
N/A
Permit Type:
Alteration
Building Type:
Single family res...
Single pdf - 240sf addition for a new workout studio *** mt pt et separate
Valuation:
N/A
Permit #:
2021-093741-000-00-RS
Status:
filed
Fee:
N/A
Permit Type:
Addition
Building Type:
Single family res...
New detached accessory dwelling unit 1 story no garage flat lot simple *mechanical electrical and plumbing permits to be obtained separately* cesspool decom approved 4/24/18 lpeterson
Valuation:
N/A
Permit #:
2017-186355-000-00-RS
Status:
final
Fee:
N/A
Permit Type:
New construction
Building Type:
Single family res...
Rebuild of existing fire damaged house - new owners
Valuation:
$150,000
Permit #:
B0332519
Status:
final
Fee:
$2,081
Permit Type:
N/A
Building Type:
N/A
Tenant improvement to create 6 metal framed offices in vacant tenant space- shell under 17-132989-co
Valuation:
N/A
Permit #:
2018-229917-000-00-CO
Status:
final
Fee:
N/A
Permit Type:
Alteration
Building Type:
Retail
55 lf of sanitary sewer on property for adu via digging
Valuation:
N/A
Permit #:
2018-224545-000-00-PT
Status:
final
Fee:
N/A
Permit Type:
New construction
Building Type:
Single family res...
Convert attached garage to living space
Valuation:
$30,000
Permit #:
935-18-000028-STR
Status:
final
Fee:
$2,191
Permit Type:
Addition
Building Type:
N/A
Test p r fee
Valuation:
N/A
Permit #:
E0509919
Status:
filed
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Revision for ledger used at floor joists
Valuation:
N/A
Permit #:
2020-120138-REV-01-RS
Status:
final
Fee:
N/A
Permit Type:
Alteration
Building Type:
Single family res...
New garage
Valuation:
$20,000
Permit #:
935-18-000040-STR
Status:
final
Fee:
$864
Permit Type:
New
Building Type:
N/A
Rubenstein - new garage/office
Valuation:
$488,661
Permit #:
415-22-000896-STR
Status:
issued
Fee:
$5,654
Permit Type:
New
Building Type:
N/A
Fogel/lefkowitz - balcony/mezzanine constructed over double volume height living room
Valuation:
$8,000
Permit #:
B0575015
Status:
final
Fee:
$229
Permit Type:
N/A
Building Type:
N/A
Value added revision to addition microwave ***mechanical electrical plumbing permits were obtained separately*** this is not an adu
Valuation:
N/A
Permit #:
2018-177050-REV-01-RS
Status:
final
Fee:
N/A
Permit Type:
Alteration
Building Type:
Single family res...
Revision to disable existing sink drain change to floor drain for shower
Valuation:
N/A
Permit #:
2015-218105-REV-01-CO
Status:
final
Fee:
N/A
Permit Type:
Alteration
Building Type:
N/A
Epr conversion of attached garage to 819 sf living area with family room 1 bedroom 1 bathroom and laundry room
Valuation:
$15,000
Permit #:
B0060821
Status:
final
Fee:
$1,758
Permit Type:
N/A
Building Type:
N/A
Addition a bathroom and closet on second fl for master bedroom
Valuation:
N/A
Permit #:
2015-218105-000-00-CO
Status:
final
Fee:
N/A
Permit Type:
Alteration
Building Type:
N/A
Residential 1 & 2 family dwelling (new only) limited
2022-07-27
1842 sq ft single family dwelling & 440 sq ft garage
Valuation:
N/A
Permit #:
749-22-000379-DWL
Status:
approved
Fee:
$27,714
Permit Type:
New
Building Type:
N/A
Niles - new single family dwelling
Valuation:
$400,000
Permit #:
415-18-000129-STR
Status:
final
Fee:
$4,733
Permit Type:
New
Building Type:
N/A
Similar Contractors See more
License # 58449
Salem, OR
115
BZ Score
$18.5K
Avg Project
-
Projects
119
BZ Score
$450K
Avg Project
-
Projects
134
BZ Score
-
Avg Project
-
Projects
Diamond Custom Construction LLC Reviews
BuildZoom hasn't received any reviews for Diamond Custom Construction LLC. Click here to be alerted when reviews are posted about them.
Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
Diamond Custom Construction LLC License info
Verified License
| License # | 188658 |
| Status | Active |
| State | Oregon |
| Business Type | Limited Liability Company |
- BuildZoom verified this license was active as of December 2025.
Verify this license's status for Diamond Custom Construction LLC at the Oregon Construction Contractors Board (CCB).
This is a sample of licensing data; click here to access a complete history.
97
BuildZoom Score
Insured
| Insurer | Developers Surety & Indemnity Company |
| Insured up to | $1,000,000 |
Bonded
| Bonded Agent | Developers Surety & Indemnity Company |
| Bond Value | $20,000 |
26
Permits
- Building permit records show that Diamond Custom Construction LLC has worked on 26 permitted projects.
Diamond Custom Construction LLC Employees
GA
Grosmick, Chris Allen
Member (Limited Liab