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Utica, NY Accessory Structures: ADU Rules (2026)

Some Restrictions

Compiled from the official code textEditor Martyn O'NeillLast verified September 2026

ADU rules in Utica, NY, also called accessory dwelling unit regulations or granny flat ordinances, cover setbacks, owner-occupancy, parking, and permit requirements.

Key Facts

Max ADU size: 800 sq ft gross floor area
Number allowed: One per dwelling
Owner-occupancy: Required (main or ADU)
Multi-family lots: ADU not permitted
Code section: Zoning Code, Dwelling, Accessory Units

ADU Eligibility Quick-Check

An Accessory Dwelling Unit (ADU) is a smaller, independent living unit on the same lot as a single-family home: converted garages, detached cottages, basement or attic conversions, and attached additions all qualify. Most states have streamlined ADU permitting since 2020, but local rules still control size, height, and setback.

Is your lot zoned single-family or multi-family residential?
Does your lot have at least 1,200 sq ft of buildable space?
Is your existing home owner-occupied (in most states this is not required, but some require it for ADU permits)?
Will the ADU stay under your state's size cap (commonly 850-1,200 sq ft for detached)?
Can you provide one off-street parking space (waived in many states within 0.5 mi of transit)?

If you answered 'yes' to most of these, you likely qualify in New York under recent ADU streamlining laws. The Utica, NY rules below cover local size, height, and setback requirements.

Summary

Utica permits one ADU per single- or two-family dwelling. The owner must occupy either the main house or the ADU as a primary residence, and the ADU may not exceed 800 square feet of gross floor area.

Only one ADU per single family dwelling, or one ADU per two family dwelling shall be permitted... The property owner shall occupy either the primary or the ADU as his or her primary residence... An ADU shall not exceed 800 square feet of gross floor area.

View official code

Full Breakdown

The 2021 Zoning Code allows one ADU per single-family dwelling or one per two-family dwelling; ADUs are barred on lots with a multi-family or apartment building. The property owner must occupy the primary dwelling or the ADU as their primary residence. In the R1 district the ADU must be within the principal structure or in an accessory structure attached to it, with only one entrance facing the front lot line. An ADU may be accessed from an alley but not by a separate driveway, and no major (Type 2) home occupation is allowed inside an ADU. Adequate parking must be provided.

Violations & Fines

Building without required zoning approval or exceeding 800 sq ft violates the Zoning Code, enforced by the Commissioner of Code Enforcement; correction orders and fines apply.

Frequently Asked Questions

Can I rent out an ADU in Utica?

Yes, but the owner must live on-site in either the primary dwelling or the ADU as a primary residence; both cannot be non-owner rentals.

How big can a Utica ADU be?

An ADU may not exceed 800 square feet of gross floor area, whether attached to or detached from the primary dwelling structure.

Sources & Official References

[1]City of Utica Zoning Code (Adopted Feb. 3, 2021) — Dwelling, Accessory Units (ADU)

Other rules in Utica

Parking Rules: Overnight ParkingSome Restrictions Shed & Carport RulesSome Restrictions Garage ConversionsSome Restrictions Parking Rules: Curb Color RulesSome Restrictions Parking Rules: Loading ZonesSome Restrictions Parking Rules: EV ChargingSome Restrictions Parking Rules: Driveway RulesSome Restrictions Parking Rules: Abandoned VehiclesSome Restrictions

All Utica rules

How Utica compares: Easiest Cities to Build an ADU·New York rules heatmap·Compare Utica to another location·View the New York accessory structures overview

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