Aldo

Columbia County

Town of Hillsdale, NY: zoning for new construction

3 districts Min residential lot 1–3 ac NYSEG

Residential lots in the Town of Hillsdale run from a 1-acre minimum in Hamlet up to 3 acres in Rural, across 3 zoning districts in all. Short-term rentals allowed with local rules. Power here is NYSEG territory. The district table below has the setbacks, height limits and coverage - confirm the specifics with the building department at (518) 325-5073 before you rely on a figure.

Looking specifically at an accessory dwelling unit? See ADU rules for Hillsdale →

Zoning districts

District Min lot Setbacks F / S / R Max height ADU
Rural 3 ac 50 / 50 / 100 ft 35 ft Occupancy restricted
Hamlet 1 ac 25 / 30 / 20 ft 35 ft Occupancy restricted
Hamlet Business 1 ac 40 / 50 / 100 ft 35 ft Occupancy restricted

Rural - Beyond lot area and width, a lot has to contain a square measuring at least 200 ft on a side. The front setback shown applies to a town or county road; it is 70 ft on a state road and 30 ft on a private road.

  • A flexible lot subdivision under § 245-22 is barely the same district: the side yard falls from 50 ft to 10 ft, the rear from 100 ft to 20 ft, and the front from 50 ft to 40 ft on a town road.
  • Maximum impermeable surface rises from 10% to 60%, the buildable square drops from 200 ft to 40 ft, and that column publishes no minimum lot size or town-road frontage; it is not available by right.
  • Minimum road frontage is 200 ft on a town or county road, 300 ft on a state road and 100 ft on a private road.
  • The coverage cap limits impermeable surface, not building footprint alone.

Hamlet - A lot here must contain a square of at least 100 ft in each dimension, a requirement separate from lot area and width, and needs 100 ft of road frontage on a town or county road, 200 ft on a state road.

  • Clustering takes the side yard from 30 ft to 10 ft and the rear from 20 ft to 10 ft, and raises maximum impermeable surface from 20% to 80%; the cluster column publishes no minimum lot size.
  • HM also sets a front-yard maximum: 40 ft on a town or county road and 80 ft on a state road.
  • The front setback shown applies to a town or county road. On a state road the front setback is 40 ft.
  • The coverage figure is a cap on impermeable surface, not on buildings alone.
  • In the Hamlet District the Planning Board may permit more than one building or use on a single lot.
  • Dimensional and setback requirements are applied in light of the siting guidelines in Appendixes I and II (§ 245-21), and supplementary dimensional regulations are in § 245-27.

Hamlet Business - Beyond the one acre minimum, a lot must also contain a square of at least 400 ft minimum dimension. The coverage figure shown is a cap on total impermeable surface, not on buildings alone.

  • On a state road the front setback is 50 ft rather than the figure shown.
  • Minimum road frontage is 100 ft on a town or county road and 400 ft on a state road.
  • Lot size and density are further governed by § 245-26.
  • Dimensional and setback requirements are applied in light of the siting guidelines in Appendixes I and II, and the guidelines are consulted where the two conflict (§ 245-21).
  • See § 245-27 for supplementary dimensional regulations and § 245-66 for existing nonconforming lots.

Short-term rentals

Short-term rentals allowed with local rules. Renting a home for stays of under 30 days is regulated here. An owner needs a special permit from the ZBA and a certificate of occupancy from the building inspector before renting short term.

Conditions the code attaches:

Good to know

Working out a budget? A standard-finish build here runs $202–$265/sq ft , and a conforming lot adds about $12,419 on top - see the full cost to build a house in Hillsdale, or what an ADU costs here.

Sizing up a specific parcel in Hillsdale?

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Other Columbia County towns

Zoning figures for Town of Hillsdale are compiled from the municipal code (last reviewed 2026-06-02) and provided for decision-support only - not legal, engineering, or architectural advice. Setback and dimensional standards often carry conditions and exceptions; verify with the building department at (518) 325-5073 before relying on any number. Source: the Offsite / Aldo zoning dataset.

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