Architecture, engineering, zoning, permits & construction in-house
Response within one business day
Drag the bar — from teardown to a brand-new home!
Schedule Your Free In-Home Consultation
Takes 30–45m
No obligation
Same-week
Preferred time
Your information is private and never shared.
After
Before
4.9 on Google
33+ reviews
20+ years
in Fairfield County
One in-house crew,
every trade
Licensed · Insured · Certified
NHC #0017262
Why Homeowners Choose Omega
A custom home, done right from the ground up
Free 3D Design & VR Preview
Walk through your future home in a realistic 3D rendering — and in 360° VR — before you ever break ground, saving up to $15,000 in design fees.
One In-House Crew
Foundation, framing, mechanicals, and finishes by one accountable team — no subcontractor juggling, no finger-pointing, from groundbreaking to final trim.
Zoning, Permits & Engineering
We manage the survey, site plan, P&Z and wetlands review, variances, structural engineering, and every inspection — the approvals a new home lives or dies by.
Licensed, Insured & Warrantied
Connecticut New Home Construction license (NHC #0017262), fully insured, and backed by a written workmanship warranty.
What We Do
Cos Cob new home construction
Custom Homes
Ground-up custom homes designed around how you live — from the foundation and framing to the final finishes, built by one in-house crew.
Start with a complimentary consultation. We create full architectural plans and a 3D design of your home — you approve every room before a shovel hits the ground.
02
Zoning, Survey & Permits
We handle the property survey and site plan, zoning setbacks, FAR and lot coverage, P&Z, any wetlands or variance review, and all permits with your Connecticut town.
03
Ground-Up Build
Once approvals are in, we're on-site every day. Our "no ghosting" policy means constant progress — foundation, framing, mechanicals, and finishes by one in-house crew.
04
Final Handover & Warranty
We conduct a rigorous quality check — structure, systems, weather-sealing, and finishes — before handing over your finished home, backed by our written warranty.
Local Expertise
New Home Construction in Cos Cob, Connecticut
Cos Cob packs waterfront, wetlands, and historic village into a small footprint, which makes new construction here a careful, approval-heavy endeavor. Many lots sit along or near the Mianus River, where Inland Wetlands (IWWA) review and flood elevation govern what can be built, while village parcels ask for a design that respects a tight, historic streetscape. Omega Development is a licensed Connecticut New Home Construction contractor (NHC #0017262) with more than 20 years building across Greenwich and Cos Cob.
A new home near the water is an engineering project first — flood-compliant foundations, wetlands buffers, and coastal-grade construction — layered under Greenwich's rigorous review. One in-house Omega crew carries every trade, and each home is designed in 3D before we break ground. We manage the Greenwich/Cos Cob permits, P&Z, and Inland Wetlands review from start to finish.
What to know about building a new home in Cos Cob
Waterfront and low-lying Cos Cob lots typically trigger Inland Wetlands (IWWA) review and flood-zone construction. A new home may need a raised or piling foundation to meet base flood elevation, wetlands buffers that limit the buildable area, and FEMA and CT coastal compliance — all under Greenwich's zoning of FAR, coverage, setbacks, and height. We map the buildable envelope and sequence the wetlands and P&Z approvals up front.
In the historic Village and on the hillside lots around Palmer Hill and Rock Ridge, the build shifts toward fitting an established neighborhood and managing grading and access on tighter parcels. We design coastal-shingle homes suited to Cos Cob's waterfront-New England character, and on a teardown we handle demolition and utilities in-house.
Waterfront homes through Cos Cob's review
A new home near the Mianus River has to clear Inland Wetlands and flood requirements under Greenwich's rigorous review — buffers, base flood elevation, and coastal-grade construction. We navigate that process and build coastal-shingle homes that lift the living space above the flood plane while fitting the village character.
Building throughout Cos Cob, including:
Mianus River WaterfrontPalmer HillRock RidgeMillbrookDowntown Cos Cob Village
Cos Cob, CT · 06807
What Cos Cob-area homeowners say
4.9
Based on 33+ verified Google reviews
JV
Jo Vo
2 years ago
It was a pleasure working with Inacio and the Omega team! My home renovation project was not an easy or simple one, with many challenges along the way, as most construction projects tend to be. Inacio was able to navigate his way through the tough times and find solutions, ultimately leading to a stellar finished product, far exceeding expectations. What's also nice is that we've developed and continue to maintain a strong relationship even to this day. Inacio is a great person and a solid resource to have.
JB
John Bazzano
7 months ago
Inacio and his team at Omega built a stunning three-season porch for my family. There aren't enough words to say how impressed we were with his honesty, integrity, and craftsmanship. Inacio was always available and frequently came to check on the work. His team is professional and meticulous — especially the finish carpentry guys, amazing! When an issue came up, Inacio fixed it, no questions asked — truly a man of his word. I will never use anyone else. I HIGHLY recommend him!
MV
Mike Veras
3 months ago
Omega Development renovated my home's living room, hallway, two full bathrooms, and a half powder room after a water leak from the second-floor bathroom. I was amazed by Omega crew's craftsmanship and detail-oriented finishes — the work really came out great. I fully recommend them.
AT
Andy Tregurtha
4 months ago
Absolutely incredible team!! Very consultative and always striving to perform first-in-class service at a great price. They match your desires and dreams for a project and thoroughly cover all bases, so you're satisfied not only now but for the long term. 10/10 recommend — they are phenomenal!!
JP
Joye Preece
5 months ago
Omega did two jobs for us and we are so pleased with the results. They have skilled workers who complete whatever you ask while keeping the rest of the home and their work area as clean as possible. They replaced sheet rock and repainted a ceiling in one room, then did a tile demo and wall/tile install in another bathroom. Very timely — they'd arrive early to get started as soon as they could.
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MT
Marc Trimuschat
8 months ago
Fantastic experience with Omega on the renovation of my home. Inacio and his team were always there, over-communicating, and the end results are extremely high quality. It's hard to find honest, high-quality contractors today, and I'm delighted to have hired Inacio and his team — I'd recommend them highly to anyone.
MN
Mary Noel
a year ago
The best! I cannot recommend Inacio, Rafa, and their entire team more highly. Omega Development executed a major home renovation for my family — extending our living room, a full kitchen reno, and an additional master bedroom and bath.
PV
Pedro Viggiano
a year ago
I recently had my kitchen and bathroom renovated and my bar area completely redone by Omega Development, and I couldn't be happier with the results. From start to finish, their team provided top-notch service.
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JQ
Jose Quintao
5 months ago
Great work by Omega Development. Inácio is very professional, responsible, and committed to quality. Very trustworthy company!
JP
Jonnatan Pinheiro
8 months ago
I had a great experience with Omega. Very reasonably priced. They were very committed to our project. I strongly recommend them.
CL
Cleiton Leite
4 months ago
What a great experience to work with Omega. I strongly recommend them.
RO
roisinblack
Jan 16, 2025
We have used Omega for all our needs these past few years. That has included everything from minor repairs, a full house painting (inside and out), and floor refinishing, to an addition on the third floor.
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Cos Cob New Construction FAQ
New construction in Cos Cob generally runs from about $450 to $800+ per square foot, so most homes land between roughly $1.75M and $4.5M+, with waterfront and flood-compliant builds at the higher end — land purchased separately. You get an itemized budget after a free consultation.
Yes. We design and build to base flood elevation with raised or piling foundations and meet FEMA and CT coastal requirements, working within the wetlands buffers a riverfront lot requires.
Yes. We manage the full Greenwich/Cos Cob permit set, Planning & Zoning, and Inland Wetlands (IWWA) review where a waterfront or low-lying lot triggers it.
A custom home typically runs about 14–22+ months from design through completion, with wetlands and flood approvals adding time on waterfront lots. We give you a realistic schedule with your budget.
