---
title: "Twelve Development — General Contractors | Houzz"
canonical_html_url: https://www.houzz.com/professionals/general-contractors/twelve-development-pfvwus-pf~1921920998
markdown_url: https://www.houzz.com/md/professionals/pf~1921920998.md
entity_type: LocalBusiness
business_name: "Twelve Development"
category: ["General Contractors"]
image: https://st.hzcdn.com/fimgs/aea3e95103dc3624_2377-w400-h400-b0-p0--.jpg
address: "273 Valley Road, Cos Cob, Connecticut 06807, United States"
latitude: 41.053
longitude: -73.5935
phone: "(203) 625-2675"
website: http://www.12development.com
rating: 0
review_count: 0
followers: 17
last_updated: 2026-08-16
---

# Twelve Development

Original Houzz profile: [Twelve Development](https://www.houzz.com/professionals/general-contractors/twelve-development-pfvwus-pf~1921920998)

## Professional summary

- **Primary category:** General Contractors
- **Location:** Cos Cob, CT
- **Serves:** Stamford, Greenwich, Darien, New Canaan, Wilton, Riverside, Cos Cob, Old Greenwich, Byram, Glenville, Armonk, Bedford, Chappaqua, Rye, SURROUNDING NYC AREA
- **Houzz rating:** 0.0 out of 5 (0 reviews)

## About

### Houzz Badges

- 100 Ideabook Saves

Twelve Development specializes in designing, remodeling and building homes and have won multiple industry awards and is recognized as one of the top real estate development firms in Connecticut.   Twelve Development is a turnkey operation and can handle all aspects of the building process including real estate land purchase, design and ultimately construction.

### Services Provided

- Home Remodeling
- Home Additions
- Custom Homes
- Project Management
- Workshop Design & Construction
- Modular Home Additions
- Construction Design Plans
- Design / Build
- Interior Design
- Permitting
- Property Evaluation
- Real Estate Purchase

### Areas Served

- Stamford
- Greenwich
- Darien
- New Canaan
- Wilton
- Riverside
- Cos Cob
- Old Greenwich
- Byram
- Glenville
- Armonk
- Bedford
- Chappaqua
- Rye
- SURROUNDING NYC AREA

## Business Details

| Field | Value |
| --- | --- |
| Business Name | Twelve Development |
| Address | 273 Valley Road, Cos Cob, Connecticut 06807, United States |
| Phone | (203) 625-2675 |
| Website | http://www.12development.com |
| Followers on Houzz | 17 |

**Social profiles:**
- Facebook — https://www.facebook.com/Twelve-Development-LLC-1451197865112768/
- Blog — www.12development.com

## Contact

- **Houzz profile:** [Twelve Development](https://www.houzz.com/professionals/general-contractors/twelve-development-pfvwus-pf~1921920998)
- **Website:** http://www.12development.com
- **Phone:** (203) 625-2675

## Credentials

**Certifications & Awards**
- Hobi Award Winning Builder and A-List Winner

## Selected projects

- [Plow Lane](https://www.houzz.com/hznb/projects/plow-lane-pj-vj~6297155)
  - Location: Greenwich, CT
  - Photos: 22
- [Valley](https://www.houzz.com/hznb/projects/valley-pj-vj~6297382)
  - Location: Greenwich, CT
  - Photos: 26
- [265 Valley Road](https://www.houzz.com/hznb/projects/265-valley-road-pj-vj~629622)
  - Location: Not specified
  - Photos: 20
  - Description: Twelve Development and Twelve Design Group are pleased to announce completion of their latest project, 265 Valley Road. This contemporary waterfront home offers floor to ceiling water views, decks off all three levels, swimming pool, spa and private dock. The contemporary interior incorporating wood, glass and steel components naturally compliments the traditional exterior and beautiful waterfront setting.
- [Perkins](https://www.houzz.com/hznb/projects/perkins-pj-vj~6298036)
  - Location: Greenwich, CT
  - Photos: 11

[See all 4 projects](https://www.houzz.com/professionals/general-contractors/twelve-development-pfvwus-pf~1921920998)

## Ideabooks

- [Wish List](https://www.houzz.com/ideabooks/157611594/list/wish-list) — 3 ideas
- [273](https://www.houzz.com/ideabooks/155620566/list/273) — 9 ideas
- [summer](https://www.houzz.com/ideabooks/122728692/list/summer) — 7 ideas
- [BB](https://www.houzz.com/ideabooks/122545936/list/bb) — 14 ideas
- [199](https://www.houzz.com/ideabooks/95241772/list/199) — 1 idea
- [Thomas](https://www.houzz.com/ideabooks/84909923/list/thomas) — 1 idea
- [12D Fireplaces](https://www.houzz.com/ideabooks/30303809/list/12d-fireplaces) — 2 ideas
- [Windows/Doors](https://www.houzz.com/ideabooks/30303827/list/windows-doors) — 1 idea

[See all 8 ideabooks](https://www.houzz.com/ideabooks/users/12development)

---

*Source: Houzz professional profile. Reflects the profile as of 2026-08-16.*