What Higgins Quasebarth & Partners does

Higgins Quasebarth & Partners LLC is a New York-based historic preservation and rehabilitation consulting firm founded in 1984, headquartered at 11 Hanover Square in lower Manhattan. The firm advises private developers, cultural institutions, educational institutions, non-profit housing developers, and government entities on the preservation, rehabilitation, restoration, and regulatory approval of historic properties. Its service portfolio spans tax credit consulting (federal/state historic preservation tax credits), Landmarks Preservation Commission consultation, Section 106 and NY State Section 14.09 compliance reviews, research and documentation, restoration and rehabilitation advisory, preservation planning, special permits (including Transfer of Development Rights), and new buildings consultation within historic districts. The firm approaches each engagement by integrating the perspectives of historic preservationists, architectural historians, and architectural conservators, addressing technical, aesthetic, intellectual, and government review dimensions concurrently.

The firm operates a fee-for-service professional services model, engaged directly by property owners, developers, institutions, and government entities on a project-by-project basis. GTM is predominantly referral-led, driven by established relationships with architects, developers, and institutions; marketing is reinforced through a published project portfolio and continuous industry award recognition. Revenue derives from hourly/project-based professional service fees; no subscription, productized, or technology-enabled revenue streams are disclosed, and the firm offers no public or partner-facing API or software product.

The firm is led by five principals—Bill Higgins, Elise Quasebarth, Ward Dennis, Erin Rulli, and Cas Stachelberg—with two associate partners (Julie Rosen, Sarah Sher). It is privately held with no disclosed parent company, outside investors, subsidiaries, or M&A activity. The firm is actively operating with projects spanning NYC, Brooklyn, New Jersey, and Boston-area markets, anchored by marquee engagements such as the Whitney Museum of American Art, Hearst Tower, Bank of America Tower façade at the Henry Miller Theater, Morgan Library & Museum, Brooklyn Navy Yard Building 128, Chelsea Hotel, Lord & Taylor Building, and Pier 57.

Name

Higgins Quasebarth & Partners

Legal name

Higgins Quasebarth & Partners LLC

Website

https://hqpreservation.com

Company type

Private

Founded year

1984

Operating status

Operating

Headcount range

11–50 employees

Short description

Higgins Quasebarth & Partners is a New York-based historic preservation consulting firm founded in 1984 that advises private developers, cultural institutions, and government entities on the rehabilitation, tax credit certification, and regulatory approval of historic properties.

Ownership category

akta.pro rank

Product category

Historic Preservation Consulting

NAICS

Architectural Services (541310)

akta.pro primary industry

Historic Preservation & Conservation Planning (BPAHAKAH)

Keywords

• Historic preservation consulting
• Preservation tax credits
• Landmarks consultation
• Architectural conservation services
• Heritage compliance consulting

Headquarters

HQ city

New York

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, Infrastructure

Revenue model

1. Professional Consulting Services: Fee-for-service consulting engagements for historic preservation projects including planning, approvals, technical preservation services, and regulatory compliance from planning through execution.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels2 records

Core offering

Higgins Quasebarth & Partners LLC advises private, corporate, government and institutional clients on the preservation and rehabilitation of historic properties. The firm integrates expertise of historic preservationists, architectural historians and architectural conservators to deliver procedural guidance and technical preservation services across planning, approvals, and execution. Core offerings include Tax Credit Consulting, Landmarks Consultation, Section 106 Compliance Reviews, Research & Documentation, Restoration, Rehabilitation, Planning, Special Permits and New Buildings Consultation.

Product overview

Higgins Quasebarth & Partners is a historic preservation consulting firm founded in 1984 that offers a comprehensive suite of services for the preservation and rehabilitation of historic properties. The firm brings together historic preservationists, architectural historians, and architectural conservators to provide procedural guidance and technical preservation services spanning planning and approvals through execution. Their core offerings include Tax Credit Consulting, Landmarks Consultation, Section 106 Compliance Reviews, Research & Documentation, Restoration, Rehabilitation, Planning, Special Permits, and New Buildings Consultation—all integrated to help clients navigate technical, aesthetic, intellectual, and government review issues.

Differentiator

Problem solved

Functional benefit

Products and services

• Historic Preservation Consulting End-to-end advisory services for private, corporate, government and institutional clients on preservation and rehabilitation of historic properties, integrating technical, aesthetic, intellectual and government review issues across planning, approvals, and execution.
• Tax Credit Consulting Historic Preservation Tax Credit Reviews guiding clients through qualification for federal and state historic preservation tax credits by ensuring compliance with the Secretary of the Interior's Standards.
• Landmarks Consultation Consultation and guidance through the New York City Landmarks Preservation Commission approval process for preservation, new construction, additions, and modifications within historic districts.
• Section 106 Compliance Review Federal Section 106, NY State Section 14.09, and similar historic preservation compliance reviews for projects requiring federal or state approval.
• Research & Documentation Historical research, existing conditions surveys, and documentation of historic buildings to support National Register listings, preservation planning, and regulatory reviews.
• Restoration Services Technical preservation consulting and restoration recommendations for historic building facades, windows, interiors, and architectural elements.
• Rehabilitation Services Advisory services for rehabilitation of historic structures to meet federal preservation standards while adapting buildings for contemporary use.
• Planning Services Preservation planning studies, campus master plans, and design guidelines for institutions and historic districts.
• Special Permits Assistance with special permit applications and zoning waivers for historic properties, including Transfer of Development Rights (TDRs).
• New Buildings Consultation Landmarks consultation and public review for new construction within historic districts, including design consultation and contextual analysis.
• Additions Consultation Landmarks consultation for additions and modifications to historic properties subject to preservation review.

Named customers8 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

Feature1 record

Scale indicators2 records

Recent moves4 records

Expansion highlights3 records

Market position

Strengths1 record

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/hqpreservation

Revenue estimate

Valuation estimate

Number of profiles

Profiles7 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 Higgins Quasebarth & Partners