Looking for an addition contractor in Port Washington North, NY? Describe your project once and up to three addition contractors who work in Port Washington North and Nassau County get back to you with a quote. It's free and there is no obligation.
Port Washington North is home to about 3,146 people (2024 Census Bureau estimate), a shrinking community (−1.1% since 2020). With 6,571 people per sq mi, it is a densely built-up area. Growing families here often add space instead of moving.
Port Washington North at a glance
- Population (Census Bureau estimate, 2024)
- 3,146 (−1.1% since 2020)
- Rank in New York
- 226th of 595 cities and towns
- Land area
- 0.5 sq mi
- Population density
- 6,571 people per sq mi (densely built-up)
- Type
- Village (Port Washington North village)
- Main county
- Nassau County
What to check before hiring in Port Washington North
- Zoning: check Port Washington North's setbacks, lot coverage and height limits first.
- License and permit: in New York, additions are built by licensed contractors under a permit.
- Structure: second stories need an engineer to check the existing house.
- Price drivers: size, foundation, roof tie-in, plumbing and finishes.
Useful official resources
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ICC: International Code Council
Official information and guidance.
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NAHB
Official information and guidance.
Services available in Port Washington North
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Room addition
Ground-floor addition with foundation, framing, roof and finishes.
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Second-story addition
New floor over the existing house, with structural engineering.
Frequently asked questions in Port Washington North
How much does an addition cost in Port Washington North, NY?
It depends on size, foundation and finishes. Describe your project: contractors who serve Port Washington North reply with a quote.
How long does it take?
Often a few months, plus design and permits.
Does an addition raise property taxes?
Usually, since it increases the assessed value.
Which addition contractors will contact me?
Up to three independent addition contractors who serve Port Washington North 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.