Kotas/Pantaleoni Architects

What Kotas/Pantaleoni Architects does

Kotas/Pantaleoni Architects is a privately held architecture firm founded in 1981 and headquartered in San Francisco, California, with a secondary office in Ventura. The firm provides architectural design services across three primary practice areas: residential (custom single-family homes on challenging or hillside sites), multi-family (townhouses, apartments, live/work buildings, courtyard developments), and commercial (retail, restaurants, adaptive reuse, and institutional facilities). The firm also engages in urban design and planning exercises for mixed-use urban infill projects. The firm's stated specialization is designing cost-effective, livable buildings with wit and directness for unusual or awkward urban sites—projects that fit community context while maintaining distinct character.

The firm operates with a six-member team led by Principal Architect Anthony A. Pantaleoni, including Senior Project Manager Milan Gill, Project Manager Mike Guillory, Bert Martinez, and Office Manager Theresa Gotshalk. Two team members hold LEED AP credentials, signaling expertise in sustainable design. The firm has received recognition through Gold Nugget, DIFFA, and AIA/Sunset Magazine awards, and its work has been featured in Progressive Architecture, Sunset Magazine, Northern California Home & Garden, SF Magazine, and Masonry Design West, as well as in books including Bay Area Houses by Sally Woodbridge, Cottage Life by Richard Sexton, and New Architecture San Francisco by James Shay. Notable projects include the Tansev House, Ulloa Street House, House of Faith, Tower Car Wash, Warren Orthodontics, Marianist Retirement Center, Brainwash (San Francisco's first cafe/laundromat), and Vedanta Temple.

The business model is project-based professional services, with revenue generated through custom-quoted design fees tied to project scope, complexity, and requirements. The firm engages clients directly through sales-led relationships with individual homeowners, property developers, commercial clients, and institutional customers in the San Francisco Bay Area. Distribution is entirely direct, with no intermediaries or digital channels. No pricing is publicly disclosed, and there are no app, API, subscription, or technology-product revenue streams—the business is purely a professional services practice dependent on reputation, referrals, and project portfolio visibility.

Name

Kotas/Pantaleoni Architects

Legal name

Kotas/Pantaleoni Architects

Website

https://kp-architects.com

Company type

Private

Founded year

1981

Operating status

Operating

Headcount range

11–50 employees

Short description

Kotas/Pantaleoni Architects is a San Francisco-based architecture firm founded in 1981 that designs residential, multi-family, and commercial buildings, specializing in energy-efficient mixed-use urban infill and challenging sites. It serves Bay Area homeowners, developers, and institutional clients through a six-person team.

Ownership category

akta.pro rank

Product category

Architectural Services

NAICS

Architectural Services (541310), Residential Remodelers (236118), Interior Design Services (54141)

akta.pro primary industry

Custom Home Building (IMAFABAC)

akta.pro secondary industries

Multi-Family Residential Construction (Apartments, Condos, Townhomes) (IMAFABAB), Residential Design-Build & Renovation-Integrated Builders (IMAFABAE), Whole-Home Interior Renovation (Non-Structural) (HSAPAEAC)

Keywords

• Architectural design services
• Residential architecture
• Multi-family housing design
• Commercial building design
• Urban infill architecture

Headquarters

HQ city

San Francisco

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D

Revenue model

1. Architectural Design Services: Project-based professional fees for architectural design services including residential, commercial, multi-family, and mixed-use projects. Revenue generated through design fees, project management, and related architectural consulting services.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels1 record

Core offering

Kotas/Pantaleoni Architects provides architectural design, planning, and project management services for residential (single-family homes), multi-family (townhouses, apartments, live/work), and commercial (retail, restaurant, adaptive reuse, institutional) buildings. The firm focuses on cost-effective, contemporary design solutions for unusual or challenging urban sites, with most work located in the San Francisco Bay Area.

Product overview

Kotas/Pantaleoni Architects is an established architecture firm founded in 1981 offering a comprehensive portfolio of architectural services. The firm specializes in residential architecture (single-family homes), multi-family architecture (townhouses, apartments, live/work buildings), and commercial architecture (retail, restaurants, adaptive reuse, institutional). Their six-member team focuses on cost-effective, livable buildings with contemporary design solutions, particularly for unusual or challenging sites. The firm has produced award-winning work published in notable periodicals and books including Progressive Architecture, Sunset Magazine, and Bay Area Houses by Sally Woodbridge.

Differentiator

Problem solved

Functional benefit

Products and services

• Residential Architecture Services Custom single-family home design services including custom homes, renovations, and residences in San Francisco's Glen Park and other Bay Area neighborhoods, with particular expertise on hillside properties and unusual or challenging sites.
• Multi-Family Architecture Services Multi-family residential building design including townhouses, apartments, live/work spaces, and courtyard developments throughout the Bay Area, targeted at property developers and investors.
• Commercial Architecture Services Commercial building design services including retail, restaurants, adaptive reuse projects, and institutional facilities for commercial property owners and businesses.
• Urban Design and Planning Services Urban design exercises and planning consultation for mixed-use urban infill projects and neighborhood development, including upcoming projects such as Thomas Berkley Way, Larkin Street, DeHaro, 95 Nordhoff, Alice Street, and Chenery Street.

Named customers4 records

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Scale indicators3 records

Recent moves1 record

Expansion highlights3 records

Direct peers

• John Maniscalco Architecture: San Francisco architect focused on custom residential design on challenging urban and hillside sites, directly comparable to K/P's specialty in awkward, infill parcels.
• Aidlin Darling Design: San Francisco-based architecture firm with a comparable practice across residential, multi-family, and civic/commercial projects, similarly known for design rigor and Bay Area urban-context work.
• Studio VARA: San Francisco architecture studio with a residential-led practice including custom homes, additions, and small multi-family work, closely overlapping K/P's core offerings.
• Swatt Architects: East Bay (Emeryville) architecture firm with comparable custom residential, multi-family, and small commercial work targeting Bay Area clients and developers.
• Stanley Saitowitz | Natoma Architects: San Francisco design-led architecture firm recognized for residential and urban infill work, comparable in typology and Bay Area positioning despite a different stylistic signature.
• Butler Armsden Architects: San Francisco boutique architecture firm specializing in custom single-family residential and selected multi-family work, similar size and craft-driven positioning to Kotas/Pantaleoni.
• Edmonds + Lee Architects: San Francisco residential and adaptive-reuse architecture firm of comparable scale, focused on custom homes and small commercial work in the Bay Area.
• Levy Art + Architecture: San Francisco-based boutique firm with a similar custom residential and small-scale commercial practice, sharing the design-led, client-direct model.
• Jensen Architects: San Francisco-based residential and small commercial architecture practice with a similar boutique profile serving homeowners and developers in urban Bay Area contexts.

Broad incumbents

• Skidmore, Owings & Merrill: Global architecture and engineering firm with a San Francisco presence working on large-scale residential, mixed-use, and civic projects—an incumbent K/P occasionally competes against on developer-led RFPs.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat2 records

Key risks5 records

Key highlights6 records

Customer concentration

• Facebookfacebook.com/profile.php
• LinkedInlinkedin.com/company/kotas-pantaleoni-architects

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 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 Kotas/Pantaleoni Architects