Short answer: Exchange lists 26 architecture practices in New York. Architects in New York are licensed by the State Education Department's Office of the Professions under Education Law Article 147, not by a contractor board, and the licence is personal — a firm offering architecture must be a professional corporation, PLLC or design professional service corporation, never an ordinary LLC. In New York City the practical constraint is not the licence but DOB NOW filing, Local Law 97 carbon limits and Landmarks review.
Architects in New York
New York is the only state where a practice's day-to-day work is shaped as much by three municipal laws as by the building code itself. An architect stamping drawings in Buffalo, Rochester or the Hudson Valley works under the New York State Uniform Fire Prevention and Building Code and a town building department. An architect stamping the same building type in Manhattan works under the New York City Construction Codes, files through DOB NOW as a registered design professional, may be carrying Local Law 97 emissions liability into the energy model, and may need Landmarks Preservation Commission sign-off before the Department of Buildings will look at the application. The two practices hold the same licence and do materially different jobs.
This directory lists architecture firms working across the state: institutional and healthcare practices, residential and interiors studios, adaptive-reuse and office-to-residential conversion specialists, historic preservation architects working in the city's landmark districts, and multi-discipline firms carrying architecture alongside engineering under a single design professional corporation.
Licensing: a personal licence, and a firm structure that follows from it
Architecture in New York is licensed by the State Education Department's Office of the Professions, which is unusual — most states license architects through an independent registration board. Licensure requires a NAAB-accredited professional degree, AXP experience, the Architect Registration Examination, and triennial registration with 36 hours of continuing education in each three-year cycle, of which the health, safety and welfare component is mandatory. The seal belongs to the individual, and Education Law Article 147 makes the individual responsible for the work under it regardless of who signs the client's cheque.
The consequence most often missed is structural. A New York architecture firm cannot be an ordinary limited liability company. It must be a professional service corporation, a professional limited liability company, or a design professional service corporation under Business Corporation Law Article 15-A — the last of these being the vehicle that lets architects and engineers hold shares in the same entity, which is why so many of the state's multi-discipline practices carry "DPC" after their name. Out-of-state firms need a Certificate of Authority from the Education Department before they may offer services here, and a firm that has merely registered with the Department of State has not done that.
New York City: the filing layer is the practice
Work in the five boroughs is filed electronically through DOB NOW, and the applicant of record is a licensed architect or professional engineer who takes on statutory responsibility for the filing. Professional certification lets an experienced applicant self-certify code compliance and skip plan examination — and it carries audit exposure, with the Department pulling filings for review after approval. Special inspections under Chapter 17 of the city code are documented on TR-1 forms, and the design professional is responsible for identifying which inspections a job requires at filing time rather than discovering them at sign-off.
Three local laws dominate scoping conversations. Local Law 97 caps greenhouse gas intensity for most buildings over 25,000 square feet, with the limits tightening in 2030, which has moved decarbonisation retrofits — heat pump conversions, envelope work, submetering — from an owner's aspiration to a compliance deadline with a penalty attached. Local Laws 92 and 94 require a green or solar roof on most substantial roof replacements. And Local Law 11, administered as the Facade Inspection Safety Program, puts every building over six storeys on a five-year facade inspection cycle, which sustains a specialist practice area in facade assessment and remediation that barely exists elsewhere in the country.
Landmarks and preservation
New York City has more than 37,000 landmarked properties across its historic districts, and any exterior change to one requires a Landmarks Preservation Commission permit before the Department of Buildings will issue its own. Staff-level certificates of no effect handle routine work; anything visible from the street can end up at a public hearing. Upstate, the State Historic Preservation Office administers the federal and state rehabilitation tax credits, and the state credit for commercial properties in qualifying census tracts is what makes many Buffalo, Syracuse and Troy mill and warehouse conversions financeable at all. Preservation is not a niche in this state — it is a routine project delivery path, and the architect is usually the one navigating it.
Energy code and the conversion market
The state Energy Conservation Construction Code and the separate New York City Energy Conservation Code both run ahead of the national baseline, and the state's Climate Leadership and Community Protection Act targets keep pushing them. For an architect the practical effect is that envelope and thermal bridging detailing has moved from a consultant's problem to a drawing-set problem — continuous insulation, balcony and shelf-angle thermal breaks, and blower-door verification on multifamily work.
The other market shaping practices right now is office-to-residential conversion. Midtown and Lower Manhattan floor plates built for open-plan tenancies do not naturally yield code-compliant dwelling units, and the binding constraints are light and air, legal window requirements, egress stair count and core geometry rather than structure. The 2024 changes to the state's housing law and the city's conversion incentives widened the eligible building stock; the architects doing this work are the ones who can test a floor plate for yield in a week rather than a month.
Liens, insurance and payment
Design professionals in New York have lien rights under Lien Law Article 2 for services performed in the improvement of real property, with an eight-month filing window on private commercial work and four months on single-family residential. Professional liability insurance is not required by the state for licensure, but it is required by almost every institutional client and by the city on public work, and the standard of care claim — not a warranty claim — is the exposure that matters. Firms doing city work should also expect to carry the Department's own insurance requirements and the site safety documentation that comes with a Buildings filing on any job with a construction superintendent.
Architect contractors in other regions: California, Illinois, Texas.
Other trades in New York: General Contracting, Roofing & Waterproofing.
Jump to licence verification sources for Architect in New York, or back to all architect contractors on Exchange.
Frequently asked questions
Who licenses architects in New York?
The New York State Education Department's Office of the Professions, under Education Law Article 147 - not a contractor licensing board. Licensure requires a NAAB-accredited professional degree, AXP experience and the Architect Registration Examination, with triennial registration and 36 hours of continuing education per cycle including a mandatory health, safety and welfare component.
Can an architecture firm in New York be an LLC?
No. A firm offering architectural services must be a professional service corporation, a professional limited liability company, or a design professional service corporation under Business Corporation Law Article 15-A. An ordinary LLC registered with the Department of State cannot lawfully offer architecture in New York, and out-of-state firms need a Certificate of Authority from the Education Department.
What is professional certification on a New York City DOB filing?
It allows an experienced licensed applicant to self-certify that a filing complies with the code, bypassing plan examination and speeding approval. It also carries audit exposure - the Department of Buildings pulls a share of professionally certified filings for post-approval review, and the applicant of record carries statutory responsibility for what was certified.
How does Local Law 97 affect an architect's scope?
Local Law 97 sets greenhouse gas intensity caps on most buildings over 25,000 square feet, with limits tightening in 2030 and financial penalties for exceedance. It has turned decarbonisation retrofits - heat pump conversions, envelope upgrades, submetering - into deadline-driven compliance work, and it usually lands in the architect's energy model and scope narrative rather than only in the mechanical engineer's.
Do I need Landmarks approval before filing with the Department of Buildings?
Yes, if the property is an individual landmark or in a historic district. The Landmarks Preservation Commission must issue its permit first; routine work can often be handled by a staff-level certificate of no effect, while anything materially visible from the street may go to a public hearing. The Department of Buildings will not issue a permit without the Landmarks approval in hand.
Do architects have lien rights in New York?
Yes. Lien Law Article 2 gives design professionals a lien for services performed in the improvement of real property. The filing window is eight months from the last item of service on private commercial work and four months on single-family residential, so the deadline moves depending on the property type - not the contract type.
What makes office-to-residential conversion work in New York specialised?
The binding constraints are light and air, legal window requirements, egress stair count and core geometry rather than structure. Deep office floor plates do not naturally yield code-compliant dwelling units, so the useful skill is testing a floor plate for unit yield quickly. Recent state housing law changes and city incentives widened the eligible building stock, which is why this has become a distinct practice area.
