ADU · Erie County

Can you build an ADU in Blasdell, NY?

Village of Blasdell has 8 districts. All districts prohibit ADUs. Check your address to confirm the district that applies to your parcel:

Check my address for ADU feasibility → Free · no account needed to start

What the Blasdell code says

Blasdell has no accessory apartment. In R-2, the two-family district, an existing building can be converted into more dwelling units by right, which changes the use of the house rather than adding a subordinate unit.

Conditions the code attaches:

A conversion may not exceed the number of dwelling units the district permits, and needs one off-street parking space per unit
The lot must meet the district minimum, and the State Multiple Residence Law must be met
No other district allows a conversion
R-1 permits one-family houses only, and L-C no dwelling
R-3 permits new two-family and multifamily dwellings
C-1 and C-2 take multifamily attached dwellings only by special use, and the industrial districts list no dwelling

What the Blasdell code indicates by district

The table below shows how each district treats ADUs, alongside the lot and setback standards that govern a second unit. District boundaries and conditions vary, so treat this as a starting point and confirm the district that applies to your parcel.

District	Min lot	Setbacks F / S / R	Max height	ADU
R-1 Single-Family Residential	0.13 ac	25 / 5 / 25 ft	35 ft	No
R-2 Two-Family Residential	0.13 ac	25 / 5 / 25 ft	35 ft	No
R-3 Multifamily Residential	1 ac	40 / 10 / 30 ft	35 ft	No
L-C Land Conservation	0.46 ac	40 / 20 / 50 ft	35 ft	No
Commercial District	0.11 ac	10 / 0 / 25 ft	25 ft	No
Commercial District	0.23 ac	30 / 10 / 25 ft	25 ft	No
Light Industrial District	0.34 ac	25 / 15 / 25 ft	40 ft	No
Heavy Industrial District	—	—	—	No

R-1 Single-Family Residential - The 5,750 sq ft figure is both the lot minimum and the land required for each dwelling unit, so the two come to the same thing for a single house.

Height is capped twice over: the limit in feet and the storey count both apply

R-2 Two-Family Residential - A two-family dwelling needs no more land than a house here, the same 5,750 sq ft lot, but the land per dwelling unit halves to 2,875 sq ft and the rear yard grows from 25 ft to 35 ft.

Height is capped twice over: the limit in feet and the storey count both apply

R-3 Multifamily Residential - A two-family dwelling is held to a far smaller standard than the acre shown: 5,750 sq ft on a 50 by 115 ft lot, with a 25 ft front yard, a 5 ft side yard and a 35 ft rear yard.

The acre is the multifamily figure, and what governs yield is the 2,500 sq ft of land required for each dwelling unit
Multifamily dwellings need 600 sq ft per unit against 900 sq ft for a house
Height is capped twice over: the limit in feet and the storey count both apply

L-C Land Conservation - Height is capped twice over here, the limit in feet and the storey count both applying. No minimum habitable floor area is set.

Commercial District - The 10 ft front yard is a floor rather than the answer: it is ten feet or the average of the block, whichever is greater, so on an established street the block sets it.

No side yard is required, but a side yard actually provided must be at least ten feet
No area per dwelling unit and no minimum habitable floor area are set in this district

Commercial District - Both height limits bind at once, the 25 ft figure and the two-storey count.

Light Industrial District - The 15 ft side yard becomes fifty feet from any Single-Family or Two-Family Residential district, which is the separation that really governs a site on the edge of this district.

Appendix I to the chapter sets performance standards for sound, vibration, radioactivity, odour, glare, heat, dust and smoke

Heavy Industrial District - This district states no lot area, width, depth, yard, height or coverage standard at all. Beyond its use list, the only controls the chapter places on this district are its performance standards for sound, vibration, radioactivity, odour, glare, heat, dust and smoke.

Confirm the buildable envelope with the village before planning anything here

ADUs vs. short-term rentals in Blasdell

No local short-term-rental law on record - which is not the same as permission for Village of Blasdell. The village has no local short-term rental law. That is not the same as permission, so confirm with the village before counting on renting a home short term. These are separate questions from whether you can build an ADU — a unit you're allowed to add isn't automatically one you're allowed to rent nightly, so check both.

Good to know

Residential lot minimum0.13–1 ac — an ADU still has to fit the district's lot and setback envelope.
UtilityNational Grid territory.
Zoning codeecode360.com/9000321
Building dept(716) 822-1921

ADU FAQ — Blasdell, NY

Are ADUs allowed in Blasdell, NY?

Village of Blasdell has 8 districts. All districts prohibit ADUs. Check your address with the free ADU checker, or confirm with the building department at (716) 822-1921.

Do I need a special permit for an ADU in Blasdell?

No. No district in Village of Blasdell permits an ADU, so there is no permit to apply for. Codes change, so verify with the building department at (716) 822-1921 before ruling it out.

Can I use an ADU as a short-term rental in Blasdell?

No local short-term-rental law on record - which is not the same as permission for Village of Blasdell. ADU occupancy and short-term-rental rules are separate: an ADU you can build isn't automatically one you can rent nightly. Confirm both before you count on STR income.

Run the free ADU check for your parcel →

What an ADU costs to build in Blasdell

Permission is one question and budget is another. An 800 sq ft accessory unit here runs roughly $200k–260k at a standard finish, and the per-square-foot rate comes in above a full house because the kitchen, bath, panel and heating plant cost the same either way. See the full cost to build an ADU in Blasdell, priced by size.

How we know this

Sections analyzed: § 267-29 · § 267-10 · 267 Attachments 1 to 5 (Schedule I)
Districts confirmed: 8 of 8 — every mapped district.
Last reviewed: 2026-09-10
Not covered here: Overlay districts, the zoning map, and any conditions attached to an individual parcel. Size limits and owner-occupancy terms sit in the code section above, not in this summary.

More on Blasdell: Full zoning for new construction · ADU build cost · House build cost · ADU rules across Erie County · All Erie County towns

ADU information for Village of Blasdell is compiled from the municipal code (last reviewed 2026-09-10) and provided for decision-support only — not legal or architectural advice. ADU eligibility, size, owner-occupancy and permit conditions vary by district and often carry exceptions; verify with the building department at (716) 822-1921 before relying on any answer. Source: the Offsite / Aldo zoning dataset.