What Interface Studio Architects does

Interface Studio Architects (ISA) is a Philadelphia-based architecture and urban design firm founded in 2004, operating from the Crane Arts building in the city's South Kensington neighborhood. The firm is led by three Principals — Brian Phillips (Founding Principal/Creative Director, Pew Fellow and University of Pennsylvania lecturer), Deb Katz (Managing Director, Columbia GSAPP-trained), and Alexandra Gauzza (Studio Director, Harvard GSD-trained) — alongside a core team of approximately 11 including a Design Director, project managers, and designers. The firm's practice spans four service lines: Housing + Mixed Use, Institutional + Civic, Adaptive Reuse, and Workspace + Interiors, complemented by a formal research arm called ISA LAB that produces grant-funded experiments, exhibitions, and methodology toolkits such as Meantime, Gray Area, Better Barriers, and Process Lab.

ISA designs high-performance buildings that respond to urban context, with particular emphasis on attainable urban housing, sustainable design (multiple LEED Platinum certifications), and adaptive reuse of existing structures. Notable technical achievements include the 100K House prototype (eight sustainable homes at $100/SF constructed during the subprime mortgage crisis), XS House (seven apartments on a narrow infill lot, 2019), The Block (49-unit mixed-use, 2022), The Gio (160 units at 2.5x typical rowhouse density, 2025), Lodge Evanston (30-unit church adaptive reuse, 2024), The Magnet (81 units adjacent to elevated transit, 2024), and Cherry Street Pier (industrial-to-cultural pier conversion, 2018). The firm holds 60+ American Institute of Architects awards including six AIA National Housing Awards, plus the 2015 Architectural League of NY Emerging Voices recognition.

Revenue is generated through project-based professional services — architecture fees tied to construction costs, hourly rates, or fixed project fees — with work won via RFPs, design competitions, and direct commissions. The go-to-market motion is sales-led, targeting for-profit developers, nonprofit developers (Habitat for Humanity Philadelphia), civic agencies (Delaware River Waterfront Corporation, NYC HPD), and creative/retail SMBs (Lobo Mau). Distribution relies on competition wins, professional referrals, civic partnerships, and thought leadership through awards, publications (Architect Magazine, Architectural Record, Dwell, NYT), lectures, and academic teaching. The ISA LAB generates proprietary methodologies partly funded by external grants from the Pew Center for Arts and Heritage, Knight Foundation, and the Sachs Program, creating IP that is periodically deposited into institutional collections such as the Cooper Hewitt Smithsonian Design Museum.

Name

Interface Studio Architects

Legal name

Interface Studio Architects

Website

https://is-architects.com

Company type

Private

Founded year

2004

Operating status

Operating

Headcount range

11–50 employees

Short description

Interface Studio Architects is a Philadelphia-based architecture firm founded in 2004 that designs high-performance buildings, master plans, and urban installations for developers, civic agencies, and nonprofit clients across the US.

Ownership category

akta.pro rank

Product category

Architecture Services

NAICS

Architectural Services (54131), Interior Design Services (54141), Architectural, Engineering, and Related Services (5413)

akta.pro primary industry

Architectural Design Services (BPAHAKAA)

akta.pro secondary industry

Interior Design Services (BPAHAKAB)

Keywords

• Architecture design services
• Urban housing design
• Adaptive reuse projects
• Mixed-use development
• Sustainable building design

Headquarters

HQ city

Philadelphia

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Architecture and Design Services: Professional architecture services for building design, master plans, installations, and research projects. Revenue generated through project fees based on construction costs, hourly rates, or fixed fees for specific engagements.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels4 records

Core offering

Interface Studio Architects is a Philadelphia-based architecture firm providing design services for buildings, master plans, and installations across four practice areas: Housing + Mixed Use, Institutional + Civic, Adaptive Reuse, and Workspace + Interiors. The firm also operates the ISA LAB, a research and experimental arm producing funded exhibitions, publications, and special projects that address urban and climate challenges. Services are delivered through project-based commissions, design competitions, and grant-funded research initiatives.

Product overview

Interface Studio Architects (ISA) is a Philadelphia-based design and research architecture firm offering a portfolio of building and research services. The core offerings include four main practice areas: Housing + Mixed Use (urban residential and commercial development), Institutional + Civic (mission-driven institutional projects), Adaptive Reuse (transformation of existing structures), and Workspace + Interiors (commercial and creative space design). Complementing the built work is the ISA LAB, a formal research initiative encompassing experiments, exhibitions, and special research assignments that address urban challenges. The firm has completed numerous notable projects including The Block, The Gio, Lodge Evanston, XS House, and Cherry Street Pier, among others spanning housing, civic, and commercial typologies.

Differentiator

Problem solved

Functional benefit

Brands

• Meantime: A non-profit organization that began as an ISA initiative seeking to activate underutilized storefronts in service of urban communities. Working between the real estate industry, city government, land owners and neighborhood stakeholders, the organization's mission is to activate spaces that facilitate connections, test ideas, reach new audiences and support local economies.

Products and services

• Housing + Mixed Use Design Services Urban housing and mixed-use development projects combining residential units with commercial spaces, focused on high-performance buildings that respond to their contexts and transform modest budgets into design opportunities. For developers of residential, mixed-use, and infill housing projects.
• Institutional + Civic Design Services Projects with mission-driven institutions, civic agencies, and non-profit developers, planning for equitable urban futures with buildings, spaces, and programming that support operations and maximize positive community impacts. For civic agencies, non-profit institutions, and cultural organizations.
• Adaptive Reuse Design Services Transformation of existing structures to maximize their lifespan, embodied energy, materials, and labor, targeting new investment in areas of highest impact while preserving character-rich historic features. For owners of historic buildings, developers, and institutions seeking preservation-oriented renovation.
• Workspace + Interiors Design Services Interior designs for restaurants, retail, and creative workspaces, accommodating the changing dynamic of creative production away from downtown offices toward warehouses and neighborhood storefronts. For retailers, restaurateurs, and creative businesses.
• ISA LAB Research Initiatives Research and experimental projects including research initiatives, experiments, exhibitions, and special assignments—including In Our Back Yard, Process Lab, Better Barriers, Block Party, Loose Fit, and other urban design explorations—delivered under formal grant funding arrangements. For funders, civic partners, and communities addressing urban challenges.
• Meantime Activation Toolkit Non-profit initiative offering a methodology and toolkit enabling low-cost, short-term agreements between landlords and entrepreneurs to activate vacant storefronts. For landlords, municipalities, and community organizations seeking to revitalize vacant urban spaces.

Quantifiable outcome

• 60+ AIA awards including six AIA National Housing Awards
• +3 more outcomes

Named customers5 records

Segments4 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

16 partnerships are on record, tiered core and minor.

• Tiny WPAcoreImplementation/ SI/ Consulting PartnerLocal community-based fabrication studio that collaborated on Better Barriers project and Rowhouse Workshop exhibition, fabricating exhibition totems and community building elements.
• Groundswell Design GroupcoreImplementation/ SI/ Consulting PartnerCollaborated on Cherry Street Pier design, providing landscape and design services for the adaptive reuse of the industrial pier into public cultural space.
• Elise ViderminorStrategic or Co-development PartnerCollaborated on Gray Area project series - three-year public events and publications on preservation funded by Pew Center for Arts and Heritage.
• HealthxDesignminorStrategic or Co-development PartnerHealth science research collaboration on Mass Logic (Syracuse supportive housing) and Healthy Urbanism (Brooklyn) projects, developing evidence-based design frameworks.
• Now and Then MarketplaceminorStrategic or Co-development PartnerPartner for Meantime activation events, providing pop-up retail programming.
• Hungry MonstersminorStrategic or Co-development PartnerPartner for Meantime activation events.
• Modular on the Spot PhillyminorStrategic or Co-development PartnerPartner for Meantime activation events.
• Postgreen HomescoreStrategic or Co-development PartnerDeveloper partner for 100K House prototype - eight LEED Platinum sustainable homes built during the subprime mortgage crisis as early ISA experiment in attainable urban housing.
• Fishtown Kensington Area BIDcoreStrategic or Co-development PartnerCommissioned Fishtown Kensington Vision Plan and Better Barriers initiative, representing key civic partnership for neighborhood improvement.
• Philadelphia Department of StreetsminorStrategic or Co-development PartnerPartner on Better Barriers initiative with city-approved water-filled jersey barrier retrofit.
• Cooper Hewitt, Smithsonian Design MuseumcoreStrategic or Co-development PartnerISA curated Process Lab exhibition extension featuring Citizen Design installation. Gray Area project featured in By the People exhibition. Card decks now part of museum collection.
• NYC Department of Housing Preservation and DevelopmentminorStrategic or Co-development PartnerPartner for Loose Fit competition entry addressing NYC's small lots and housing challenges.
• Philadelphia Art AllianceminorStrategic or Co-development PartnerHosted RE: ROWHOUSE group exhibition exploring rowhouse typology variations.
• Cypress Hills Local Development CorporationminorStrategic or Co-development PartnerPartner for Healthy Urbanism framework deployment across four case study sites along Atlantic Avenue in Brooklyn.
• Delaware River Waterfront CorporationcoreStrategic or Co-development PartnerNon-profit managing Cherry Street Pier and Northbank development, funding and programming public art events and performances.
• Philadelphia Habitat for HumanitycoreStrategic or Co-development PartnerDeveloper partner for Oxford Green - 20-unit affordable housing project, largest greenest project by the Philadelphia Habitat chapter.

Scale indicators3 records

Recent moves5 records

Expansion highlights4 records

Broad incumbents

• Perkins&Will: Large global architecture practice with significant housing, civic, and institutional portfolios. While ISA's specialty in affordable/attainable housing and mission-driven civic work differentiates it, Perkins&Will competes for many of the same RFPs from civic agencies and institutional clients at greater scale.
• SHoP Architects: Larger NYC-based architecture firm with parallel focus on urban housing, large-scale mixed-use, and innovative construction methods. While significantly larger than ISA, SHoP competes for many of the same institutional and developer clients on urban housing and civic commissions.

Direct peers

• Bohlin Cywinski Jackson: Multi-office architecture firm with comparable award pedigree and design excellence across residential, civic, and adaptive reuse typologies. Both firms share reputations for high-craft, contextually responsive design with strong AIA recognition.
• David Baker Architects: San Francisco-based architecture firm specializing in affordable and multifamily housing with strong sustainability credentials. Directly comparable to ISA's Housing + Mixed Use and Institutional + Civic practice areas, particularly around attainable urban housing innovation.
• KieranTimberlake: Philadelphia-based architecture firm with comparable focus on sustainability, high-performance buildings, and design excellence. Both firms share the Philadelphia base, academic ties to UPenn, and reputation for research-driven design innovation across housing and civic typologies.
• Studio Gang: Architecture and urban design practice with comparable focus on sustainability, urban housing innovation, and civic projects. Both firms share reputations for research-driven design, sustainability leadership, and award recognition in housing typologies.
• Handel Architects: Architecture firm with strong urban housing and mixed-use practice, particularly on complex urban infill and high-density residential projects. Comparable to ISA's Housing + Mixed Use specialty around dense urban infill, adaptive reuse, and attainability.
• WRT (Wallace Roberts & Todd): Philadelphia-based urban design, planning, and architecture firm. Highly comparable given shared Philadelphia base, urbanism focus, civic/mission-driven client base, and emphasis on sustainable urban futures.
• Lake|Flato: San Antonio-based architecture firm with parallel emphasis on sustainability, residential design, and adaptive reuse. Both firms share reputations for context-responsive design, regional identity, and consistent AIA award recognition across residential and civic work.
• MASS Design Group: Mission-driven architecture and design firm focused on social impact, equitable urban futures, and civic/health institutions. Highly comparable to ISA's research-driven LAB practice, institutional/civic work, and emphasis on community engagement frameworks.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat3 records

Key risks5 records

Key highlights6 records

Customer concentration

• Instagraminstagram.com/isaphila
• Facebookfacebook.com/isaphila
• LinkedInlinkedin.com/company/isa-interface-studio-architects-llc

Revenue estimate

Valuation estimate

Number of profiles

Profiles8 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 Interface Studio Architects