Updated: Jun 06, 2026
Location and Projects
Address
5921 Middlefield Rd, Suite 202, Littleton, CO, 80123
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Cornerstone Ddb Ltd Electrician
Cornerstone Ddb Ltd, 5921 Middlefield Rd, Littleton, CO (Employees: Cornerstone Builders Llc Class B and Neil Behlmaier) holds a Renovation license and 4 other licenses according to the Environmental Protection Agency license board.
Their BuildZoom score of 108 ranks in the top 5% of 55,949 Colorado licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Cornerstone Ddb Ltd, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Cornerstone Ddb Ltd Contact Information
Phone Number: (303) 333-1999
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Address: 5921 Middlefield Rd, Suite 202, Littleton, CO 80123
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Cornerstone Ddb Ltd Littleton
Quality
108
95th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Cornerstone Ddb Ltd has a BuildZoom score of 108, which places them above 95% of 55,949 contractors in Colorado.
Activity
|
12 projects
|
2025 |
|
13 projects
|
2024 |
|
32 projects
|
2023 |
Our building permit records indicate that Cornerstone Ddb Ltd has worked on at least
57.0 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
|
18 projects
|
New Constructions |
|
4 projects
|
Home Additions |
|
22 projects
|
Electrical projects |
Analyzing permits over the last 4 years shows that Cornerstone Ddb Ltd mostly works on
electrical project
and new construction
projects.
Pricing
|
11 projects
|
< $5k |
|
4 projects
|
$5k-$20k |
|
1 project
|
$20k-$50k |
|
1 project
|
$50k-$100k |
|
11 projects
|
$100k-$250k |
|
1 project
|
$250k-$500k |
|
1 project
|
$1mil+ |
The typical size of their permits is approximately $15,000. 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.
Kitchen remodel with new flooring cabinets and countertops removal of soffit and non-structural dividing wall drywall patch and repair paint new countertop and island receptacles new overhead lighting and undercabinet lighting utilizing existing circuits one new dedicated 15 amp 120 volt circuit for range hood new kitchen sink/faucet in existing location
Valuation:
$22,500
Permit #:
RES-24-00165
Status:
complete
Fee:
$1,044
Permit Type:
N/A
Building Type:
N/A
New 6-unit irc townhouse building. 3 stories plus rooftop
Valuation:
$2,023,630
Permit #:
BLDG24-01080
Status:
applied
Fee:
$5,917
Permit Type:
New multi family
Building Type:
N/A
Kitchen remodel including new cabinets countertops flooring drywall repairs paint new lighting new faucet. kitchen layout remains the same no structural work replacement of one window with same size no new electrical circuits
Valuation:
$13,500
Permit #:
RES-24-00141
Status:
complete
Fee:
$702
Permit Type:
N/A
Building Type:
N/A
4625 n forest st unit a - electrical dd 9 double duplex receptacles with 5 circuits; addition 9 light fixtures with 1 switch and 1 circuit; addition 3 phase 25 amp power and single phase 40 amp power for equipment
Valuation:
$15,000
Permit #:
2024-ELEC-0001777
Status:
final
Fee:
$139
Permit Type:
N/A
Building Type:
Commercial
4625 n forest st units a-a1-b-c - electrical new 480v 1000 amp building service; 600 amp service for unit a; 400 amp service for unit b
Valuation:
$180,476
Permit #:
2024-ELEC-0001251
Status:
final
Fee:
$1,349
Permit Type:
N/A
Building Type:
Commercial
3289 s eudora st - new sfr/bsmt w/att garage new single family residence. 2 stories over basement w attached garage
Valuation:
$478,882
Permit #:
2022-LOG-0015836
Status:
approved
Fee:
$1,446
Permit Type:
N/A
Building Type:
N/A
Master bathroom remodel new shower in new location new vanity and location new toilet and location. new lighting gfci receptacles and switches. new flooring and wall finishes. new window
Valuation:
$18,000
Permit #:
RES-24-00676
Status:
complete
Fee:
$831
Permit Type:
N/A
Building Type:
N/A
4625 n forest st unit a - electrical dd 9 double duplex receptacles with 5 circuits; addition 9 light fixtures with 1 switch and 1 circuit; addition 3 phase 25 amp power and single phase 40 amp power for equipment
Valuation:
$15,000
Permit #:
2024-LOG-0000899
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Wire new monument sign in place of existing located on the north east corner. existing 240v 90 amp power new exterior disconnect connection of led panels inside of sign
Valuation:
$5,000
Permit #:
2023-ELEC-0006422
Status:
final
Fee:
$159
Permit Type:
N/A
Building Type:
Commercial
Comments: the service is upgrading to 125 amp| the service type is grc mast| 125 amp panel (federal pacific) to 125 amp panel
Valuation:
$2,012
Permit #:
1810403
Status:
issued
Fee:
$174
Permit Type:
Electrical permit
Building Type:
N/A
Sfa 3br 3.5ba
Valuation:
$229,770
Permit #:
RES-0781-2020
Status:
final
Fee:
$24,463
Permit Type:
N/A
Building Type:
N/A
Sfa 3br 3.5ba
Valuation:
$229,770
Permit #:
RES-0786-2020
Status:
final
Fee:
$24,597
Permit Type:
N/A
Building Type:
N/A
Single-family residence. sudp mod - revision adding ejector pit to sanitary line unable to gravity feed due to basement and sanitary main depths
Valuation:
N/A
Permit #:
2024-SUDP-0000750
Status:
approved
Fee:
$575
Permit Type:
Addition & altera...
Building Type:
N/A
Single-family residence. sudp mod - revision adding ejector pit to sanitary line unable to gravity feed due to basement and sanitary main depths
Valuation:
N/A
Permit #:
2024-LOG-0001723
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Wire new monument sign in place of existing located on the north east corner. existing 240v 90 amp power new exterior disconnect connection of led panels inside of sign
Valuation:
$3,500
Permit #:
2022-LOG-0012084
Status:
withdrawn
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Sfa 3br 3.5ba
Valuation:
$196,202
Permit #:
RES-0795-2020
Status:
final
Fee:
$24,242
Permit Type:
N/A
Building Type:
N/A
Sfa 3br 3.5 ba
Valuation:
$193,802
Permit #:
RES-0784-2020
Status:
final
Fee:
$24,244
Permit Type:
N/A
Building Type:
N/A
Sfa 3br 3.5 ba
Valuation:
$196,202
Permit #:
RES-0803-2020
Status:
final
Fee:
$24,288
Permit Type:
N/A
Building Type:
N/A
Sfa 3br 3.5 ba
Valuation:
$193,802
Permit #:
RES-0802-2020
Status:
final
Fee:
$24,186
Permit Type:
N/A
Building Type:
N/A
Sfa 3br 3.5 ba
Valuation:
$193,802
Permit #:
RES-0801-2020
Status:
final
Fee:
$24,240
Permit Type:
N/A
Building Type:
N/A
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132
BZ Score
$6.5K
Avg Project
-
Projects
131
BZ Score
$4.8K
Avg Project
-
Projects
135
BZ Score
$8K
Avg Project
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Projects
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Verified License
BuildZoom confirmed this contractor's license
Cornerstone Ddb Ltd License info
Verified License
| License # | NAT-115499-2 |
| Status | Active |
| Nation | Environmental Protection Agency |
| Type | Renovation |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Cornerstone Ddb Ltd at the United States Environmental Protection Agency.
This is a sample of licensing data; click here to access a complete history.
Verified License
| Status | Active |
| City | Denver |
| Type | Building Contractor Class B |
- BuildZoom verified this license was active as of June 2026.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| Status | Active |
| City | Denver |
- When BuildZoom last verified this license, it had an expiration date of April, 2021. Check the current license status of Cornerstone Ddb Ltd with the City and County of Denver Community Planning and Development
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | AEC000536 |
| Status | Inactive |
| City | Littleton |
| Type | Contractor |
- According to the The City of Littleton, CO, 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 Cornerstone Ddb Ltd at the The City of Littleton, CO.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| Status | Inactive |
| City | Denver |
| Type | Building Contractor Class B |
- According to the City and County of Denver Community Planning and Development, 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.
This is a sample of licensing data; click here to access a complete history.
108
BuildZoom Score
208
Permits
- Building permit records show that Cornerstone Ddb Ltd has worked on 208 permitted projects.
Cornerstone Ddb Ltd Employees
CB
Cornerstone Builders Llc Class B
Contractor
NB
Neil Behlmaier