How much does adu construction cost in Staten Island, NY?

Most Staten Island homeowners spend between $195,000 – $390,000 on adu construction, with an average around $292,500. Local labor prices 30% above the national average, so Staten Island quotes tend to land at the higher end of national ranges.

Why is adu construction more or less expensive in Staten Island than elsewhere?

Staten Island offers the most suburban-style pricing in the five boroughs. Storm surge exposure raises requirements near the water.

Do I need a permit for adu construction in Staten Island, New York?

DOB permits with coastal-zone review in shoreline areas. Always confirm current requirements with the local building department before signing a contract, and make sure the permit is pulled by your licensed contractor.

How many quotes should I get in Staten Island?

Get at least three written quotes from licensed, insured New York contractors. Comparing line items — not just the bottom line — is the fastest way to spot an inflated bid in the New York City market.

How much does adu construction cost in 2026?

Most homeowners pay between $150,000 and $300,000, with a national average near $225,000. Small, simple jobs land at the low end; large or premium-material jobs run well above the high end.

What is the cost per square foot?

Installed pricing usually runs $250.00 to $500.00 per square foot, including labor and materials. Expensive metros can run 15–45% higher than that range.

What drives the price up the most?

Scope and access. Larger quantities lower your per-square foot price, but difficult access, demolition of existing work, structural repairs found mid-job, premium materials and rush scheduling each add 8–30%.

Permits are typically required when the work changes structure or ties into electrical, plumbing, gas or mechanical systems. Budget $75–$600 in most cities and confirm whether your contractor pulls it — unpermitted work can block a future home sale.

How long does the job take?

Most residential projects of this type finish in one to five working days once materials are on site. Custom orders, inspections and weather are the usual causes of delay.

How many quotes should I get?

Three. Bids on the same scope commonly vary 20–40%, and the middle bid with the strongest warranty and references is usually the best value — the cheapest bid often excludes prep, disposal or permits.

Home/Cost guides/ADU Construction/Staten Island, NY

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ADU Construction cost in Staten Island, NY

Staten Island homeowners typically pay $195,000 – $390,000 for adu construction. Local labor and materials price 30% above the national average.

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Staten Island average

$292,500

Typical low

$195,000

Typical high

$390,000

Per square foot

$325 – $650

Sample ZIP

10301

What drives Staten Island pricing

Local labor

Staten Island offers the most suburban-style pricing in the five boroughs.

Permits & code

DOB permits with coastal-zone review in shoreline areas.

Climate & conditions

Storm surge exposure raises requirements near the water.

Instant cost calculator

Adjust the inputs to see live pricing

ADU size (sq ft)600 square feet

Quality / material level

Site access

Removal / prep work

Timing

Estimated project cost

$171,000 – $236,550

Most homeowners pay around $203,775

Compare quality / material level

Cost by material in Staten Island

Installed Staten Island pricing per square foot.

Option	Installed cost	Pros	Cons
Prefab studio ADU	$300 – $415	—	—
Site-built 1-bedroom	$415 – $545	—	—
Site-built 2-bedroom	$545 – $705	—	—
Custom high-end ADU	$705 – $975	—	—

Where the money goes in Staten Island

A typical $292,500 Staten Island project, broken down by line item.

Labor0.45% · $1,316
Materials0.38% · $1,112
Permits & inspections0.05% · $146
Overhead & profit0.12% · $351

Common add-ons

Extras that show up on Staten Island quotes but rarely in the headline price.

Utility connections

$10,400 – $39,000

Site work and foundation

$19,500 – $78,000

Design and permits

$10,400 – $39,000

Impact fees

$2,600 – $26,000

Ways to save in Staten Island

Use pre-approved ADU plans where your city offers them — saves months and design fees.
Detach only if required; attached and conversion ADUs cost far less.
Collect three written bids on an identical scope — spreads of 20–40% are normal.
Book in the off-season and stay flexible on the start date to save 5–15%.
Bundle nearby work into one mobilization so you only pay setup and travel once.
Ask what the contractor would change to cut 10% without hurting durability.

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Best adu construction companies in Staten Island ADU Construction permits in New York ADU Construction near me All New York prices

ADU Construction cost near Staten Island

ADU Construction cost in New York, NY

$213,000 – $426,000

ADU Construction cost in Brooklyn, NY

$207,000 – $414,000

ADU Construction cost in Queens, NY

$199,500 – $399,000

ADU Construction cost in Bronx, NY

$196,500 – $393,000

ADU Construction cost in Yonkers, NY

$193,500 – $387,000

ADU Construction cost in Long Island, NY

$195,000 – $390,000

More New York cities

Buffalo Rochester Albany Manhattan Syracuse White Plains

Other project costs in Staten Island

Fence Installation in Staten Island

$1,950 – $5,200

Roof Replacement in Staten Island

$11,050 – $44,200

Kitchen Remodel in Staten Island

$23,400 – $123,500

HVAC Replacement in Staten Island

$7,150 – $23,400

Deck Building in Staten Island

$5,720 – $15,600

Window Replacement in Staten Island

$585 – $1,950

See every Staten Island cost guide