Room Addition Contractors in Staten Island, NY
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Staten Island
Room Additions in Staten Island
Staten Island is New York City's borough of houses: 47% of owner-occupied homes are detached and only 3% are in buildings of five or more units, so additions are a real option for many owners. Rear extensions, second floors and dormers are common; each starts with zoning, the existing structure and a Department of Buildings filing. Goodhaus does not do the work; it is a free service that puts owners in touch with independent addition contractors.
Ideas & Inspiration
Room Addition Ideas to Consider in Staten Island
General ideas for inspiration only. These are not projects performed by Goodhaus, which is a free matching service and not a contractor.
File before building
In New York City, construction without Department of Buildings approval or permits is illegal, and the work must be legalized or removed.
Near the shore
If the lot is in a mapped flood hazard area, an improvement costing 50 percent or more of the structure's market value is a substantial improvement under the federal flood rules, which can require the whole building to meet current flood requirements.
Second floor
Building up depends on whether the foundation and framing can carry it; an engineer's assessment comes before design.
Costs
How much does a room addition cost in Staten Island?
Staten Island addition quotes depend on size, foundation, the roof tie-in, flood requirements on mapped lots, the New York City filing and the trades required.
Cost guide
Room Addition Cost
Staten Island, NYRoom additions are estimated from the cost per square foot of new contractor-built houses (U.S. Census Bureau), an experimental comparison, so only a range is shown. Prices as of August 2026. This is an estimate for planning, not a quote or a guaranteed Goodhaus price. Your actual cost depends on your home, your choices and your contractor, and quotes may be lower or higher. Open the cost calculator
Get Free QuotesInspiration
Room Addition Inspiration
Example images to help you describe the look you want. These are not projects performed by Goodhaus.
Questions
Room Additions in Staten Island: FAQs
When can construction happen?
New York City noise rules allow construction from 7:00 am to 6:00 pm on weekdays, with limited weekend hours for owner-occupied one- and two-family homes.
What licence should an addition contractor have?
New York City requires a Home Improvement Contractor licence from the Department of Consumer and Worker Protection for residential remodeling work.
Service Area
Where You Can Request Room Additions in Staten Island
Areas where we accept room additions requests. Contractor availability varies by area and project, and a match is not guaranteed.
Neighborhoods
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Other Services in Staten Island
Nearby
Room Additions in Nearby Cities
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Helpful Guides
Choosing a Mini-Split Comes Down to Room-by-Room Sizing, Head Placement and Replace or Supplement
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Remodeling to Stay or to Sell Follows One Tax Basis Rule, and the Exclusion Tests Frame the Sale
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