Updated: Jul 06, 2026
Location
Address
10 S. END CT., Old Greenwich, CT, 06870
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Twelve Development Construction
Twelve Development LLC, 10 S End Ct, Old Greenwich, CT holds a New Home Contractor license and 2 other licenses according to the Connecticut license board.
Their BuildZoom score of 0 does not rank in the top 50% of Connecticut contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Twelve Development LLC, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Twelve Development LLC Services
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Twelve Development LLC Contact Information
Phone Number: (203) 625-2675
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Address: 10 S. END CT., Old Greenwich, CT 06870
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Verified License
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Twelve Development LLC License info
Verified License
| License # | NHC.0013390 |
| Status | Active |
| State | Connecticut |
| Type | New Home Contractor |
| Date Issued | 04-01-2026 |
- BuildZoom verified this license was active as of July 2026.
Verify this license's status for Twelve Development LLC at the Connecticut Department of Consumer Protection.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | HIC.0649804 |
| Status | Inactive |
| State | Connecticut |
| Type | Home Improvement Contractor |
- According to the Connecticut Department of Consumer Protection, 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 Twelve Development LLC at the Connecticut Department of Consumer Protection.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | NAT-F181103-1 |
| Status | Inactive |
| Nation | Environmental Protection Agency |
| Type | Renovation |
- 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 Twelve Development LLC at the United States Environmental Protection Agency.
This is a sample of licensing data; click here to access a complete history.
ALERT*
BuildZoom Score
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- *No active license on file. If you are Twelve Development LLC, click “This is My Business” to update your information.