Syracuse
Onondaga County portion
Also in: No County
ADU Pass helps homeowners in Syracuse, Onondaga County, New York navigate the permit paperwork for building an accessory dwelling unit. This area covers 18 ZIP codes.
Map
ADU details
ADU legality: allowed
New York preempts most local ADU restrictions. Syracuse permits ADUs by right in single-family zones per its zoning ordinance.
Cost scenarios
| Scenario | Sq ft | Permit | Build | Total |
|---|---|---|---|---|
| minimum | 150 | $3,200 | $40,500 | $43,700 |
| 600 | 600 | $3,200 | $162,000 | $165,200 |
| midpoint | 675 | $3,200 | $182,250 | $185,450 |
| maximum | 1,200 | $3,200 | $324,000 | $327,200 |
Fee breakdown
Permitting process
- Confirm ReZone Syracuse zoning district eligibility (~5d)
ReZone Syracuse (effective 2023-07-01, amended July 2024) replaced 1967 zoning. ADUs are now allowed as a 'missing middle' use in most residential districts. Confirm the parcel's new district (RA-1, RA-2, etc.) on the Syracuse Zoning Map. Owner-occupancy of one of the two dwelling units is required. - Pre-application review with Office of Zoning Administration (~14d)
Optional but strongly recommended pre-app meeting with Zoning at City Hall Commons Room 500. Zoning verifies ADU compliance with the 2024 amended ordinance (use, dimensional, parking) before plans go to Permits. - Submit Building Permit Application to Central Permit Office (~7d)
Hard-copy submittal to Central Permit Office, City Hall Commons Room 101, 201 East Washington Street, Syracuse, NY 13202. Plans, energy code (NYS ECCC) compliance, structural, plumbing, electrical, mechanical drawings required. Code Enforcement reviews in conjunction with Engineering, Fire Prevention, Zoning, Public Works, Preservation, Transportation, and Water. - Multi-department plan review (~35d)
Permits coordinates concurrent review across departments. Properties in Syracuse Local Historic Districts (Armory Square, Hawley-Green, Walton, Westcott Theater, etc.) also route through Preservation. Properties in flood zones along Onondaga Creek route through Engineering for flood-elevation compliance. - Permit issuance (~7d)
Once corrections cleared and fees paid, permit issues from the Central Permit Office. New York has no statutory ministerial deadline; Syracuse targets sub-90-day cycle but historic-district and flood-zone parcels can extend. - Construction inspections via Code Enforcement
Schedule inspections (footing, foundation, framing, rough-in plumbing/electric/mechanical, insulation, final) through Syracuse Code Enforcement. Lead-paint protocols apply for pre-1978 conversions, which is most of the housing stock. - Certificate of Occupancy (~14d)
Final inspection passes; CO issued by Code Enforcement. Required before lawful occupancy or rental of the ADU.
Viability (permitted uses)
- Long-term rental: yes Long-term rental of ADU explicitly permitted; New York owner-occupancy preemption (where applicable) makes ADU eligible for full landlord-tenant treatment.
- Short-term rental: with-restrictions STR rules vary by city. Syracuse regulates STRs separately from ADU permitting; check local STR ordinance and HOA covenants.
- Office rental: with-restrictions Detached office rental requires home occupation permit or rezoning.
- Home office: yes Home occupation permitted with restrictions on signage and customer traffic.
- Studio / workshop: yes Personal artist studio is a permitted accessory use.
- Agriculture: with-restrictions Limited urban agriculture permitted in residential zones; livestock varies by district.
- Relative support: yes Family-occupancy ADU explicitly permitted in single-family zones.
Contacts
Staff: Office of Zoning Administration (Zoning intake / ReZone Syracuse interpretation) zoning@syrgov.net, Central Permit Office (Building permit issuance), Syracuse Code Enforcement (Inspections and CO), Syracuse Fire Department - Fire Prevention Bureau (Plan review for fire/life safety)
Utilities
- Water: City of Syracuse Department of Water (Skaneateles Lake / Otisco Lake source) · 21d connect · $4,500
- Sewer: Onondaga County Department of Water Environment Protection (Metro Syracuse WWTP) · 21d connect · $5,500
- Electric: National Grid (upstate NY) · 30d connect · $1,800
- Gas: National Grid (upstate NY) · 30d connect · $1,500
Property values & taxes
Construction timeline
Realistic total: best 7mo · typical 11mo · worst 17mo
Financing
State ADU loans:
Insurance impact
HOA prevalence & preemption
New York has no statewide statute that voids HOA, condominium, or cooperative restrictions on ADUs. New York is unusual among states in that it has no general HOA-governance statute at all — common-interest communities are governed by a mix of the Condominium Act (RPL Article 9-B), the Cooperative Corporations Law, the Not-for-Profit Corporation Law, and the Business Corporation Law depending on the form of the association. Restrictive covenants in declarations and bylaws therefore continue to bind ADU construction in HOA / condominium / co-op communities except where local zoning expressly preempts them (rare in NY).
Technical envelope (climate & building code)
Climate & energy code
Building code
Amendments:
- Amendment
- Amendment
Legal history (timeline)
Current ordinance: City of Syracuse Municipal Code — Accessory Dwelling Units, adopted 2020-01-01, last amended 2024-04-01
- 2024-01-01 — City of Syracuse ADU code refresh (city-ordinance)
Conforming local-code amendments aligning with current New York accessory-dwelling framework.
Effect: Codified by-right ADU standards consistent with state law and local zoning.
Onondaga County — county ADU rules and overlays
County ADU ordinance
Onondaga County, NY (472,000 residents, Syracuse metro) does not have countywide ADU land-use authority. Onondaga comprises Syracuse (the city), 19 towns, and 15 villages. Syracuse has been an active Plus One ADU Program participant; suburban Onondaga towns vary. The state Plus One ADU Program is available to income-eligible homeowners.
State-floor overlay: No NY statewide ADU preemption.
County regulatory overlays
Onondaga County administers flood-hazard, and (where mapped) coastal, wildland-fire, historic, and airport overlays that shape ADU project feasibility. The most consistent overlay across the county is FEMA NFIP floodplain regulation; other overlays apply to specific geographies inside the county.
- FEMA NFIP Special Flood Hazard Areas in Onondaga County — A new ADU in a mapped SFHA must be elevated to or above the Base Flood Elevation; cost impact on the project is often material.
- Historic districts and individually-listed historic resources
New York state — ADU law and programs
State financing programs
New York operates the Plus One ADU Program, a state-funded grant initiative administered by NYS Homes and Community Renewal (HCR) that finances new ADU construction and the legalization of existing unpermitted units for low- and moderate-income homeowners. The program was capitalized at $85 million over five years by the FY2022-2023 NYS Capital Budget; approximately $59 million had been awarded to local government and non-profit subrecipients across the first two rounds. A separate NYC-administered Plus One ADU pilot (run by HPD) layers additional grant + loan dollars on top within the five boroughs.
State housing programs
Beyond the Plus One ADU funding stream, New York's statewide ADU policy footprint is concentrated in HCR's Plus One technical-assistance and pre-development resources for subrecipient localities. The state does not currently operate a statewide pre-approved ADU plan catalog, statewide impact-fee waiver, or statewide streamlined-review timeline floor — those tools sit at the municipal level (notably the City of Yes for Housing Opportunity package adopted by NYC in late 2024). New York's 'City of Yes' is a NYC zoning text amendment, not a state program, and is therefore not state-primary.
- Plus One ADU technical assistance — Bundled with the Plus One grant award — HCR-funded TA for subrecipients on ADU project scoping, contractor selection, design review, and homeowner outreach. Layered with local code-compliance support.
Federal (United States) — ADU-relevant rules and programs
Federal ADU law
The United States has no federal statute that directly regulates accessory dwelling unit entitlement or design. Land-use authority over ADUs resides with states and local governments under the traditional police power. Federal engagement is limited to financing (Fannie/Freddie/FHA/VA/USDA), flood insurance (FEMA/NFIP), and discretionary housing programs (HUD), which are recorded in sibling sections of this file.
Federal financing programs
Federal housing-finance agencies and GSEs set nationwide underwriting rules that govern whether an ADU can be financed, appraised, and counted toward mortgage qualifying income. The relevant actors are Fannie Mae, Freddie Mac, FHA (HUD), VA, and USDA Rural Development.
Federal tax credits
There is no ADU-specific federal tax credit. ADUs may incidentally qualify for existing federal energy-efficiency and clean-energy tax credits when the ADU construction includes qualifying measures.
Federal housing programs
HUD administers several discretionary programs that can fund ADU-related activity at the grantee's election, but none is an ADU-specific program.
ZIP Codes
- 13031
- 13120
- 13202
- 13203
- 13204
- 13205
- 13206
- 13207
- 13208
- 13209
- 13210
- 13211
- 13212
- 13214
- 13215
- 13219
- 13224
- 13290
Post Office
- 1801 Milton Ave, 13209
- 1900 Brewerton Rd, 13211
- 2200 S Salina St, 13205
- 226 Teall Ave, 13217
- 2509 James St, 13206
- 401 W Division St, 13218
- 4912 W Seneca Tpke, 13215
- 5640 E Taft Rd, 13220
- 6581 Kinne Rd, 13214