Looking for an architect in Old Westbury, NY? Describe your project once and up to three architects and designers who work in Old Westbury and Nassau County get back to you with a quote. It's free and there is no obligation.
Old Westbury is home to about 4,950 people (2024 Census Bureau estimate), a growing community (+15.2% since 2020). With 577 people per sq mi, it is a semi-rural area. New homes, additions and remodels here go through zoning and building review, where complete drawings are required.
Old Westbury at a glance
- Population (Census Bureau estimate, 2024)
- 4,950 (+15.2% since 2020)
- Rank in New York
- 172nd of 595 cities and towns
- Land area
- 8.6 sq mi
- Population density
- 577 people per sq mi (semi-rural)
- Type
- Village (Old Westbury village)
- Main county
- Nassau County
What to check before hiring in Old Westbury
- License: in New York, check the architect's license with the state board.
- Zoning: setbacks, height limits and lot coverage shape what you can build: ask the architect to check them first.
- Scope: design, permit set and construction support are often priced separately.
- Fees: compare fixed fees and percentages on the same scope.
Useful official resources
Services available in Old Westbury
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Custom home design
Design of a new home, from concept to permit and construction drawings.
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Addition or remodel plans
Plans for an addition or a major remodel, ready for the permit and the builder.
Frequently asked questions in Old Westbury
How much does an architect cost in Old Westbury, NY?
It depends on the project size, complexity and the services. Describe your project: architects who serve Old Westbury send a proposal.
How long does design take?
From a few weeks for small projects to several months for a custom home, plus permit review.
Can I use stock plans?
Yes, often adapted by a local designer to meet local codes and site conditions.
Which architects and designers will contact me?
Up to three independent architects and designers who serve Old Westbury and the surrounding area, chosen for the service you need. Your details are shared only with your consent.
Source: U.S. Census Bureau, Population Estimates Program (Vintage 2024) and Gazetteer Files (public domain), imported on 10/31/2026. Figures describe the incorporated place or county as published; they are shown for information only.