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Kevin O'Sullivan + Associates

Kevin O'Sullivan + Associates

Architects
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About Us

Luxury residential architecture and interior design firm specializing in modern homes in the Hamptons and beyond. Full-service, client-first collaborative design approach.

Category

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18 Projects

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Business Details

Business Name

Kevin O'Sullivan + Associates

Phone Number

(631) 267-3038

Website

www.kosullivan.com

Address

2408 Main St.
Suite B
Bridgehampton, NY 11932

Typical Job Cost

$2 million - 13 million

Followers

46 Followers

Socials

Find me on FacebookFind me on my blog or other site

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Services Provided

Architectural Design

Building Design

Home Remodeling

Architectural Drawings

House Plans

Home Additions

Home Extensions

Kitchen Design

Sustainable Design

Kitchen Remodeling

Energy-Efficient Homes

Floor Plans

3D Rendering

Bathroom Design

Green Building

Space Planning

Guesthouse Design & Construction

Universal Design

Multigenerational Homes

Pool House Design & Construction

Home Restoration

Drafting

Historic Building Conservation

Project Management

Handicap-Accessible Design

Outdoor Kitchen Design

Barn Design & Construction

Basement Remodeling

Mudroom Design

Basement Design

Tiny House Construction

Staircase Design

Deck Design

Garage Design

Laundry Room Design

Landscape Plans

Passive Solar Heating & Cooling

Home Gym Design & Construction

Custom Homes

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Areas Served

Manhattan

Southampton

East Hampton

Southold

Springs

North Sea

East Hampton North

Northwest Harbor

Noyack

Shelter Island

Cutchogue

Sag Harbor

Water Mill

Shinnecock Hills

Watermill

Bridgehampton

North Haven

Peconic

Amagansett

Wainscott

New Suffolk

Sagaponack

Miami

Shinecock Hills

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Credentials

6 Houzz Awards
Best of Houzz 2025 - Design
Best of Houzz 2024 - Design
Best of Houzz 2023 - Design
Best of Houzz 2022 - Design
Best of Houzz 2021 - Design
Best of Houzz 2019 - Design
2 Houzz Badges
Houzz Influencer
10,000 Ideabook Saves
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Reviews

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1 Ideabook

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24 Comments

Commented: Gorgeous bath, what is the stone in wet room?Hi! It’s 12x24 “ocean” travertine. Good luck!
October 23, 2021
Commented: Doors?Hi! Sorry just seeing this today. Doors were custom-made by a local millworker. Essentially they are flat panel doors with routed reveals and then painted. Good luck!
May 28, 2020
Commented: Front doorSide lites are by Loewen. Door is custom by a local mill worker. Hope this helps!
November 19, 2019
Commented: love the island feet*toe kick
October 14, 2019
Commented: pavers<?xml version="1.0" encoding="UTF-8"?><md>Indiana limestone.
October 11, 2019
Commented: bedroom lightingHi! The pendant lights are from Apparatus Studio in NYC. :-)
September 30, 2019
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Frequently Asked Questions

What services does Kevin O'Sullivan + Associates provide?

Kevin O'Sullivan + Associates provides the following services: 3D Rendering, Architectural Design, Architectural Drawings, Barn Design & Construction, Basement Design, Basement Remodeling, Bathroom Design, Building Design, Deck Design, Drafting, Energy-Efficient Homes, Floor Plans, Garage Design, Green Building, Guesthouse Design & Construction, Handicap-Accessible Design, Historic Building Conservation, Home Additions, Home Extensions, Home Gym Design & Construction, Home Remodeling, Home Restoration, House Plans, Kitchen Design, Kitchen Remodeling, Landscape Plans, Laundry Room Design, Mudroom Design, Multigenerational Homes, Outdoor Kitchen Design, Passive Solar Heating & Cooling, Pool House Design & Construction, Project Management, Space Planning, Staircase Design, Sustainable Design, Tiny House Construction, Universal Design, Custom Homes

Where does Kevin O'Sullivan + Associates provide services?

Kevin O'Sullivan + Associates provides services in the following areas: Amagansett, Bridgehampton, Cutchogue, East Hampton, East Hampton North, New Suffolk, North Haven, North Sea, Northwest Harbor, Noyack, Peconic, Sag Harbor, Sagaponack, Shelter Island, Shinecock Hills, Shinnecock Hills, Southampton, Southold, Springs, Wainscott, Water Mill, Watermill, Manhattan, Miami