Bates Masi Architects

What Bates Masi Architects does

Bates Masi + Architects LLC is a privately held, full-service architectural firm founded in 1967 by Harry Bates and headquartered in East Hampton, New York with a second office in Midtown Manhattan (21 West 46th Street). The firm serves high-net-worth residential clients in premier locations including the Hamptons, East End Long Island, and New York City, alongside commercial and hospitality clients across both domestic and international markets. Its services span custom residential architecture, commercial architecture (offices, hotels, restaurants), and bespoke furniture design produced in an in-house wood shop. The firm operates under a project-based professional services revenue model, with custom architectural fees per engagement and direct client inquiry as the primary go-to-market channel.

The firm's competitive positioning rests on a research-driven design methodology emphasizing material exploration, craft, and environmental response, paired with six decades of operating history and a recognized founder legacy in midcentury modernism. Current leadership comprises four principals: Paul Masi (Harvard GSD, ex-Richard Meier & Partners), Aaron Weil (UVA, ex-William McDonough + Partners), Aaron Zalneraitis (Cornell), and Katherine Dalene Weil (RISD). The firm has accumulated more than 260 design awards since 2003, published two monographs (Bespoke Home in 2019, Architecture of Place in 2023), and maintains sustained earned media presence in Architectural Record, Interior Design, the New York Times, Architectural Digest, and Forbes. Notable hospitality work includes the ASSET Restaurant in Sag Harbor and Tessa Restaurant; residential portfolio centers on coastal Long Island projects including Walking Dunes, Three Mile Harbor, Mohegan Trail, Wainscott, Shinnecock, and Signal Hill.

Name

Bates Masi Architects

Legal name

Bates Masi + Architects LLC

Website

https://batesmasi.com

Company type

Private

Founded year

1967

Operating status

Operating

Headcount range

11–50 employees

Ownership category

akta.pro rank

Product category

Architectural Services

NAICS

Custom Architectural Woodwork and Millwork Manufacturing (337212)

SIC

Operative Builders (1531)

akta.pro primary industry

ADU Design, Architecture & Engineering (HSAPAMAF)

akta.pro secondary industry

Luxury Whole-Home Renovation (High-End Finishes & Custom Build) (HSAPAEAI)

Keywords

• Custom residential architecture
• Commercial architecture design
• Hospitality interior design
• Custom furniture design
• Coastal modern architecture

Headquarters

HQ city

East Hampton

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales, Technology or R&D

Revenue model

1. Architectural Services: Project-based architectural fees for custom residential, commercial, and hospitality projects including urban and suburban residences, offices, hotels, restaurants, and furniture design

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

Bates Masi Architects is a full-service architectural firm providing custom residential, commercial (offices, hotels, restaurants), and bespoke furniture design services. The firm applies a research-driven methodology drawing on extensive investigation in material, craft, and environment to deliver site-specific architectural solutions. Projects span premier locations including the Hamptons, East End of Long Island, New York City, and international markets, supported by offices in East Hampton and Manhattan.

Product overview

Bates Masi + Architects LLC is a full-service architectural firm with offices in New York City and the East End of Long Island. The firm operates as a single unified practice offering custom residential architecture, commercial architecture (offices, hotels, restaurants), and custom furniture design. The firm has been operating for 60 years and has received more than 260 design awards. The firm publishes monographs documenting its work, including "Bespoke Home" and "Architecture of Place," which serve as both portfolio documentation and published works available to the public.

Differentiator

Problem solved

Functional benefit

Products and services

• Custom Residential Architecture
• Commercial Architecture
• Custom Furniture Design
• Architectural Consultation and Research
• Bespoke Home (Monograph)
• Architecture of Place (Monograph)

Quantifiable outcome

• 260+ design awards accumulated since 2003

Named customers3 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Scale indicators3 records

Recent moves6 records

Expansion highlights4 records

Direct peers

• Olson Kundig: Seattle-based, award-winning custom residential and hospitality architecture firm with a comparable research-driven, material-focused design philosophy and similar national publication footprint (Architectural Record, Dwell, NYT). Comparable boutique headcount and project-based fee model serving high-net-worth residential clients.
• Robert A.M. Stern Architects: New York-based full-service architecture firm with a strong custom residential, commercial, and hospitality portfolio serving affluent East Coast clients. Comparable in firm size, project mix, and reliance on a principal-led design reputation built over decades.
• Selldorf Architects: Annabelle Selldorf's New York-based firm is recognized for high-end residential, gallery, and institutional projects. Comparable in project scale, award recognition, publication footprint, and target clientele at the upper end of the NYC design market.
• Stelle Lomont Rouhani Architects: New York and Hamptons-based architecture firm focused on custom residential projects for high-end clients in similar geographies to Bates Masi. Directly comparable in coastal luxury residential focus, project scale, and award-driven positioning.
• Steven Gambrel: New York and Hamptons-based architecture and interior design firm with a long track record of luxury residential work for high-net-worth clients in the same geographies. Directly comparable in clientele, project scale, and principal-led design reputation.
• Ike Kligerman Barkley: New York-based residential architecture firm with strong Hamptons and East Coast luxury custom home portfolio and award-winning publication history. Comparable in market positioning, design philosophy emphasis, and high-net-worth client focus.
• Tsao & McKown Architects: New York-based architecture firm with comparable high-end residential, hospitality, and cultural-institution projects. Overlapping publication footprint, similar boutique headcount, and analogous principal-led design reputation at the high end of the market.
• Deborah Berke Partners: New York-based architecture firm with comparable expertise in custom residential, hospitality, and cultural projects, led by a tenured principal with a Yale School of Architecture deanship. Comparable award recognition, project mix, and East Coast client base.
• Peter Pennoyer Architects: New York-based classical and traditional architecture firm specializing in high-end residential, institutional, and commercial projects for elite clientele. Directly comparable in target market (luxury NYC/Hamptons clients) and project-based professional services model.

Emerging players

• Workstead: Brooklyn-based design studio that has expanded from interiors and lighting into architecture, including custom residential and hospitality. Comparable boutique positioning, East Coast design press footprint, and growing share of the luxury residential and hospitality market.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat3 records

Key risks6 records

Key highlights6 records

Customer concentration

• YouTubeyoutube.com/watch?v=IAuId2_PxB4
• Facebookfacebook.com/BatesMasiArchitects
• LinkedInlinkedin.com/company/bates-masi-architects

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Bates Masi Architects