What Calthorpe Associates does

Calthorpe Associates is a U.S.-based urban planning, design, and development firm founded in 1983 by Peter Calthorpe, an internationally recognized urban designer, author, and founding partner of the Congress for the New Urbanism. The firm specializes in regional planning, urban design, and transit-oriented development (TOD), applying smart-growth principles to create walkable, mixed-use, transit-connected communities. Its service portfolio spans the full spectrum of land development — including infill redevelopment, mixed-use development, community infrastructure, urban revitalization, parks/plazas/streetscapes, and TOD — delivered through project-based multidisciplinary teams that integrate scientists, analysts, economists, public engagement specialists, and strategists.

The firm serves a mixed public-and-private client base including regional planning councils, economic development agencies, redevelopment authorities, municipalities, healthcare providers, learning institutions, corporations, and real estate developers. Notable engagements include the Gene Leahy Mall riverfront revitalization, Wollongong Central (Australia), Capital Park Redevelopment, and the Daybreak Master Planned community. Calthorpe Associates has since been acquired by HDR, the global architecture and engineering firm, and now operates as part of HDR's Urban & Community Development practice, extending its reach across HDR's offices in the USA, Australia, Canada, and the UK.

The business model is project-based professional services delivered via direct B2B sales engagement, with pricing structured around quote-based project scopes rather than disclosed rate cards. Revenue is generated through comprehensive planning, design, and development consulting engagements, with no software, subscription, or productized offering in the mix. The firm competes on the strength of its 40-plus-year track record, thought-leadership publications (including eight authored books by Peter Calthorpe), and deep public-sector relationships rather than on technology differentiation.

Name

Calthorpe Associates

Legal name

Calthorpe Associates

Website

https://calthorpe.com

Company type

Private

Founded year

1983

Operating status

Acquired

Headcount range

11–50 employees

Short description

Calthorpe Associates is a 1983-founded U.S. urban planning and design firm specializing in transit-oriented development and smart growth, serving public agencies, municipalities, healthcare, education, corporations, and developers via project-based consulting.

Ownership category

akta.pro rank

Product category

Urban Planning & Design Services

NAICS

Architectural, Engineering, and Related Services (5413)

SIC

Services-Engineering Services (8711)

akta.pro primary industry

Transportation & Traffic Engineering Consulting (BPAHAIAC)

Keywords

• Urban planning services
• Transit-oriented development
• Urban design
• Regional planning
• Smart growth planning

Headquarters

HQ city

Berkeley

HQ country

United States

HQ region

North America

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales

Revenue model

1. Professional Services - Planning and Design: Comprehensive land planning, design and development services delivered through collaborative project-based engagements with public and private sector clients

Go-to-market motion1 record

Distribution channels1 record

Marketing channels2 records

Core offering

Calthorpe Associates provides comprehensive land planning, urban design, and transit-oriented development services to public and private sector clients. The firm specializes in regional planning, community design, urban redevelopment, and smart growth strategies delivered through multidisciplinary teams that integrate planners, scientists, analysts, economists, public engagement specialists, and strategists.

Product overview

Calthorpe Associates, now part of HDR's Urban & Community Development practice since 1983, offers a unified portfolio of land planning, design and development services. The company's service offerings center on three core disciplines—Regional Planning, Urban Design, and Transit-Oriented Development—complemented by specialized service lines including Community Design, Parks/Plazas/Streetscapes, and Urban Redevelopment. Operating as an integrated service offering within HDR's broader multidisciplinary teams, Calthorpe's planning and design services are delivered alongside HDR's scientists, analysts, economists, and public engagement strategists to streamline project development. The company is globally recognized as international leaders in smart growth and founding partners in the Congress for the New Urbanism.

Differentiator

Problem solved

Functional benefit

Products and services

• Regional Planning Services Comprehensive regional planning services focused on uncovering strategies to realize the full potential of development projects at regional scale, for public and private sector clients.
• Urban Design Services Urban design services creating vibrant, sustainable developments that shape the vision and future framework of successful and active communities, for public and private sector clients.
• Transit-Oriented Development Specialized planning and design services combining smart growth principles with sustainable urban planning to create walkable, transit-connected communities.
• Community Design Community design services within HDR's Urban & Community Development practice, focusing on creating livable communities through collaborative planning approaches.
• Parks, Plazas & Streetscapes Design services for parks, plazas, and streetscapes as part of comprehensive land planning and development services.
• Urban Redevelopment Urban redevelopment services revitalizing districts and corridors using achievable and proven implementation tactics, including infill redevelopment and mixed-use development.

Named customers4 records

Segments5 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Scale indicators2 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• OLIN: Landscape architecture and urban design firm focusing on public realm, parks, and urban revitalization projects, competing for similar municipal and developer clients in the urban design and streetscape space.
• SWA Group: Landscape architecture and urban design practice working on waterfronts, parks, plazas and large-scale community design projects — directly overlapping with Calthorpe's parks/plazas/streetscapes and community design offerings.
• Sasaki Associates: Multidisciplinary planning, urban design and landscape architecture firm with comparable practice areas in regional planning, TOD, and urban revitalization, serving similar public and private-sector clients.
• Moule & Polyzoides: Architecture and urbanism firm rooted in New Urbanism principles, with deep overlap in TOD, walkable community design, and form-based coding that aligns with Calthorpe's new-urbanism orientation.

Broad incumbents

• WSP: International professional services firm with a planning and urban design practice spanning TOD, transit corridor planning, and community development, competing on multi-region public-sector bids.
• HDR: Parent company and global AEC firm whose Urban & Community Development practice now houses Calthorpe; offers engineering, planning, and architecture across transportation, water, civic, and health markets.
• AECOM: Global infrastructure consulting firm providing urban planning, transit, and landscape architecture services at much greater scale, frequently competing for the same large public-sector master-planning commissions.
• Stantec: Global design and consulting firm offering urban planning, community development, and landscape architecture, commonly engaged on the same types of municipal and redevelopment projects as Calthorpe.
• Skidmore, Owings & Merrill (SOM): Architecture, engineering and urban planning firm with a long-standing urban design practice tackling large-scale district planning and TOD engagements overlapping with Calthorpe's portfolio.

Emerging players

• Kimley-Horn: Growing planning and engineering consultancy expanding its urban planning and TOD capabilities; frequently competes on US municipal planning assignments and is adding multidisciplinary capacity analogous to HDR's.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/calthorpe-associates

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Funding overview

Funding rounds1 record

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 Calthorpe Associates