Heitzman Architects

What Heitzman Architects does

Heitzman Architects is a small architectural firm founded in 1984 by Frank Heitzman and headquartered in Oak Park, Illinois. The firm specializes in historic preservation and restoration, operating in a niche that requires navigating preservation codes, landmark commission approvals, and specialized standards for rehabilitating historic structures. Its service scope spans the full project lifecycle, including architectural plans and drawings, engineering, permitting, budgeting, project management, interior design, and accessibility design, enabling the firm to serve as a single point of accountability for complex renovation and restoration engagements.

The firm serves a diverse mix of institutional and public-sector clients across the Chicago metropolitan area, including the University of Chicago, the Park Districts of Evanston and Oak Park, Lincoln Park Zoo, the Oak Park Senior Services Building, public libraries in the Chicago region, a Kohler showroom, and churches in Chicago and Naperville. Frank Heitzman, the founder and principal, holds American Institute of Architects (AIA) and American Society of Interior Designers (ASID) credentials and is a Past-President of the Chicago AIA chapter. The firm maintains architectural licensure in Illinois and Indiana, allowing it to serve clients across adjacent state markets.

The business model is project-based professional services, with revenue derived from fees for architectural design, restoration, and project management services. With 1-10 employees and a 40-year operating history, the firm operates as a privately held, founder-led boutique practice. There is no disclosed funding, no outside investment, and no evidence of M&A activity. Customer relationships appear long-tenured, with multiple institutional clients engaged across repeated projects, consistent with a stable, referral-driven practice in a specialty niche.

Name

Heitzman Architects

Legal name

Heitzman Architects

Website

https://heitzman.org

Company type

Private

Founded year

1984

Operating status

Operating

Headcount range

1–10 employees

Short description

Heitzman Architects is a small Oak Park, IL-based firm founded in 1984 that provides historic preservation, restoration, and full-scope architectural services to institutional and public-sector clients across the Chicago metropolitan area.

Ownership category

akta.pro rank

Product category

Architectural Services

NAICS

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

SIC

General Bldg Contractors - Residential Bldgs (1520)

akta.pro primary industry

Architectural Design Services (BPAHAKAA)

akta.pro secondary industries

Architectural Reconfiguration & Structural Alterations (HSAPAEAB), Whole-Home Interior Renovation (Non-Structural) (HSAPAEAC)

Keywords

• Historic preservation services
• Building restoration architecture
• Adaptive reuse design
• Accessibility design consulting
• Residential remodeling architecture

Headquarters

HQ city

Oak Park

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

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

Revenue model

1. Architectural and Design Services: The firm generates revenue through professional architectural services including architectural plans and drawings, engineering coordination, permitting, budgeting, project management, and interior design. Revenue is project-based, derived from contracts with residential and commercial property owners for historic preservation, restoration, rehabilitation, adaptive use, and remodeling projects.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels2 records

Core offering

Heitzman Architects provides professional architectural services for the preservation, restoration, rehabilitation, adaptive reuse, and remodeling of historic residential and commercial buildings. The firm delivers integrated services spanning architectural plans and drawings, engineering coordination, permitting, budgeting, project management, interior design, and accessibility design for property owners and institutional clients across the Chicago metro area.

Product overview

Heitzman Architects is an architectural firm that provides a comprehensive suite of services for historic preservation and property enhancement. The firm operates as a single integrated practice offering historic preservation and restoration, architectural plans and drawings, engineering, permitting, budgeting, project management, interior design, and accessibility design services. The firm serves the Chicago metro area and specializes in upgrading historic properties with modern, energy-efficient solutions while preserving their architectural heritage.

Differentiator

Problem solved

Functional benefit

Products and services

• Historic Preservation and Restoration Services

Named customers8 records

Segments3 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Scale indicators1 record

Recent moves4 records

Expansion highlights2 records

Direct peers

• Vinci Hamp Architects: Vinci Hamp Architects is a Chicago architecture firm with a strong preservation, adaptive reuse, and community-focused practice—comparable in size, regional positioning, and emphasis on historic and community-oriented work.
• Bauer Latoza Studio: Bauer Latoza Studio is a Chicago-based architecture firm with deep experience in historic preservation, adaptive reuse, and restoration of landmark buildings—closely comparable to Heitzman Architects in service mix and Chicago market focus.
• Harboe Architects: Harboe Architects is a long-established Chicago firm specializing in historic preservation, restoration, and adaptive reuse of significant architectural landmarks—directly comparable in niche specialization and geography.
• Building Conservation Associates: Building Conservation Associates is a preservation-focused consulting and architecture practice providing historic restoration, masonry conservation, and adaptive reuse services—comparable to Heitzman's preservation and restoration service line.
• McGuire + Iglesiaski + Associates: McGuire + Iglesiaski + Associates is an Oak Park/Chicago-area architecture firm with a focused practice in historic preservation, rehabilitation, and restoration of residential and institutional buildings—comparable in regional footprint and niche service profile.
• Johnson Lasky Architects: Johnson Lasky Architects is a Chicago preservation architecture firm focused on historic restoration, rehabilitation, and adaptive reuse—closely aligned with Heitzman Architects' core service offerings and Midwestern institutional client base.
• MacRostie Historic Advisors: MacRostie Historic Advisors is a Chicago-area historic preservation consulting firm specializing in historic tax credits, preservation planning, and rehabilitation work—overlapping with Heitzman's institutional and adaptive reuse offerings in the same geography.

Broad incumbents

• Wiss, Janney, Elstner Associates: Wiss, Janney, Elstner Associates is a nationally prominent engineering and architecture firm headquartered in the Chicago suburbs with deep historic preservation and structural restoration expertise—considerably larger and broader than Heitzman but a key overlap on preservation projects.
• Holabird & Root: Holabird & Root is a long-standing Chicago architecture firm with notable historic preservation work on institutional and civic buildings—substantially larger than Heitzman and broader in scope, but competes for similar institutional preservation engagements.

Emerging players

• LSA Design: LSA Design is a Midwest architecture and planning firm with active historic preservation and adaptive reuse projects—partially overlapping with Heitzman's preservation-focused practice while serving a broader regional footprint.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat3 records

Key risks5 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/heitzman-architects

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

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 Heitzman Architects