ADU · Saratoga County
Can you build an ADU in Ballston Spa, NY?
Village of Ballston Spa has 5 districts. All districts prohibit ADUs. Check your address to confirm the district that applies to your parcel:
What the Ballston Spa 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 Residential (the Village's lower-density residential district and the ONLY DISTRICT WHERE A ONE-FAMILY DWELLING IS THE PRINCIPAL RESIDENTIAL USE WITHOUT A TWO-FAMILY ALTERNATIVE: 10,000 SF minimum lot with 80 ft of width, 20% maximum building coverage, a 30% MINIMUM LANDSCAPE COVERAGE, 2½ STORIES OR 36 FT, and 25 ft front, 12 ft side and 25 ft rear yards. HEIGHT IS STATED IN BOTH STORIES AND FEET AND BOTH BIND. maxHeight records the foot figure; the storey count is the companion limit, so a design under the height limit and over the storey count fails. SCHEDULE B STATES TWO PERCENTAGES AND THEY PULL IN OPPOSITE DIRECTIONS: a 'Maximum Building Coverage' — a genuine cap, which maxLotCoverage records — and a separate 'Minimum Landscape Coverage', an inverse standard requiring a share of the lot be landscaped. In the residential districts the landscape minimum is 30%; in CBD, C and M/CEE it is 'None'. The two are NOT complements, because the remainder after building and required landscaping is driveway, walk and parking. Read both before sizing anything. THE SPECIAL PERMIT ROW IS A CROSS-REFERENCE, NOT A BLANK: Schedule B prints '(a)' in every dimensional column for R-1 special permit uses, and note (a) resolves it — special permit uses in R-1 MUST MEET THE R-2 REQUIREMENTS FOR THE CORRESPONDING USE. So a hospital, school, club or funeral home on R-1 land is held to the R-2 figures for that use, not to R-1's. The one exception is landscape coverage, which stays at 30% on its own line rather than being deferred. Only the one-family dwelling is permitted here — two-family, multifamily, boarding house and bed-and-breakfast are all prohibited in R-1 and confined to R-2.) | 0.23 ac | 25 / 12 / 25 ft | 36 ft | No |
| R-2 Residential (the Village's general residential district and the one that carries nearly all of its housing variety: one-family, two-family and multiple-family dwellings are ALL PERMITTED BY RIGHT, as are boarding or rooming houses, bed-and-breakfasts and an apartment over a business office. THE LOT STANDARD IS INCREMENTAL AND THAT IS THE KEY NUMBER: 15,000 SF PLUS 2,500 SF FOR EACH ADDITIONAL DWELLING UNIT, with 100 ft of width, 30% maximum building coverage, a 30% minimum landscape coverage, 3 STORIES OR 40 FT, and 25 ft front, 15 ft side and 25 ft rear yards. A four-unit building therefore needs 22,500 sf rather than 15,000 — and at 2,500 sf per additional unit the marginal cost of density here is among the lowest in the county, which makes R-2 the most efficient multifamily district in Saratoga on a per-unit land basis. HEIGHT IS STATED IN BOTH STORIES AND FEET AND BOTH BIND. maxHeight records the foot figure; the storey count is the companion limit, so a design under the height limit and over the storey count fails. SCHEDULE B STATES TWO PERCENTAGES AND THEY PULL IN OPPOSITE DIRECTIONS: a 'Maximum Building Coverage' — a genuine cap, which maxLotCoverage records — and a separate 'Minimum Landscape Coverage', an inverse standard requiring a share of the lot be landscaped. In the residential districts the landscape minimum is 30%; in CBD, C and M/CEE it is 'None'. The two are NOT complements, because the remainder after building and required landscaping is driveway, walk and parking. Read both before sizing anything. NON-RESIDENTIAL USES CARRY THEIR OWN ROWS AND SEVERAL ARE MUCH LARGER: a mobile home park or cemetery needs 80,000 SF with 200 ft of width (the largest requirement in the Village) at a reduced 30 ft height; funeral homes, churches and schools take 30,000 sf; hospitals, health care facilities, nursing homes, libraries, museums, boarding houses and bed-and-breakfasts 15,000 sf; a club or lodge 20,000 sf; and professional or personal service uses, apartments over businesses, and state, federal or county offices only 10,000 sf at 80 ft of width. Libraries, museums, boarding houses and bed-and-breakfasts reach 45 ft where the rest of the district stops at 40. Note (b) subjects most of these coverage figures to the sanitary disposal and off-street parking regulations.) | 0.34 ac | 25 / 15 / 25 ft | 40 ft | No |
| CBD Central Business District (THE MOST PERMISSIVE DIMENSIONAL STANDARD FOUND ANYWHERE IN SARATOGA COUNTY, and it is what makes Ballston Spa's downtown possible: a 5,000 SF minimum lot with 50 ft of width, 100% MAXIMUM BUILDING COVERAGE, NO landscape coverage requirement, 4 STORIES OR 50 FT, and NO FRONT, SIDE OR REAR YARD AT ALL — Schedule B prints 'None' in all three yard columns. A hundred percent coverage with zero setbacks is full-lot, party-wall, build-to-the-sidewalk urbanism: the entire parcel may be built upon, edge to edge. The recorded zeros are the genuine standard, not missing data. HEIGHT IS STATED IN BOTH STORIES AND FEET AND BOTH BIND. maxHeight records the foot figure; the storey count is the companion limit, so a design under the height limit and over the storey count fails. AT FOUR STOREYS AND FIFTY FEET THE CBD ALSO CARRIES THE VILLAGE'S TALLEST ALLOWANCE, shared only with the M/CEE district. General commercial is the permitted principal use; MULTIPLE-FAMILY DWELLINGS ARE AVAILABLE BY SPECIAL PERMIT and an apartment over a business office is permitted by right, so residential above ground-floor commercial is an intended outcome here rather than a tolerated one. Note (b) subjects the coverage figure to the sanitary disposal and off-street parking regulations, which in practice is the only real check on a full-lot building. One-family and two-family dwellings are prohibited.) | 0.11 ac | 0 / 0 / 0 ft | 50 ft | No |
| C Commercial (the Village's other commercial district and a markedly quieter one than the CBD: the same 5,000 SF minimum lot and 50 ft of width, but 75% maximum building coverage against the CBD's 100%, and 2 STORIES OR 30 FT against 4 storeys and 50 ft — so C permits a little over half the height and a quarter less coverage on an identical lot. THE YARD PATTERN IS THE INTERESTING PART: a 25 FT FRONT YARD IS REQUIRED, but the side and rear yards are 'None'. That combination is the dimensional signature of a highway or arterial commercial strip — buildings set back from the road for parking and visibility, but free to abut one another on the sides and rear — where the CBD's zero front yard produces a continuous street wall. The two districts share a lot standard and differ entirely in the form they produce. HEIGHT IS STATED IN BOTH STORIES AND FEET AND BOTH BIND. maxHeight records the foot figure; the storey count is the companion limit, so a design under the height limit and over the storey count fails. No landscape coverage is required. General commercial is the permitted principal use; multiple-family dwellings are available by special permit and an apartment over a business office is permitted by right. One-family and two-family dwellings are prohibited.) | 0.11 ac | 25 / 0 / 0 ft | 30 ft | No |
| M/CEE Industrial / Cultural-Economic Enhancement (a combined district covering general industrial use and what the Village calls cultural and economic enhancement, amended into this form 7-24-2000 by L.L. No. 1-2000. A 5,000 SF minimum lot with NO MINIMUM LOT WIDTH AT ALL — the only district in the Village where the width column reads 'None' — 50% maximum building coverage, no landscape requirement, 4 STORIES OR 50 FT (tied with the CBD for the tallest in the Village), and NO front, side or rear yard. HEIGHT IS STATED IN BOTH STORIES AND FEET AND BOTH BIND. maxHeight records the foot figure; the storey count is the companion limit, so a design under the height limit and over the storey count fails. THE COMBINATION OF NO MINIMUM WIDTH AND NO YARDS IS UNUSUAL AND WORTH UNDERSTANDING: it means an M/CEE parcel of essentially any shape is buildable, with the 50% coverage cap and the 5,000 sf lot as the only dimensional constraints. That flexibility is what lets the district absorb both a conventional industrial building and an adaptive-reuse cultural project on the Village's older mill parcels. Schedule A lists it simply as 'M Industrial' while Schedule B heads it 'M/CEE' with the cultural/economic enhancement purpose appended — the same district under two labels. No dwelling of any kind is permitted here: one-family, two-family, multiple-family and the apartment-over-business are all prohibited, making M/CEE the only Ballston Spa district with no residential route at all.) | 0.11 ac | 0 / 0 / 0 ft | 50 ft | No |
ADUs vs. short-term rentals in Ballston Spa
No local short-term-rental law on record - which is not the same as permission for Village of Ballston Spa. No short-term-rental provision exists in the Village of Ballston Spa Zoning Law. Chapter 205 defines no short-term rental, vacation rental or transient-occupancy use, and Schedule A, the Schedule of Uses by Zoning District, lists none. There is no registration or licensing requirement. THE ENUMERATED TRANSIENT-LODGING USES ARE TWO AND BOTH ARE CONFINED TO R-2: the BED-AND-BREAKFAST and the BOARDING OR ROOMING HOUSE, each permitted by right in R-2 at a 15,000 sf lot and prohibited in R-1, CBD, C and M/CEE. A SCHEDULE A FOOTNOTE ADDS THE ONE EXCEPTION AND IT IS WORTH KNOWING: owner-occupied bed-and-breakfasts are ALSO allowed in the HISTORIC DISTRICT by special permit, and the footnote states expressly that THE OWNER MUST RESIDE IN THE BED-AND-BREAKFAST STRUCTURE. That owner-residence condition is the Village's only rule anywhere touching short-stay accommodation, and it applies to the Historic District route only. Schedule A uses an explicit key — P for permitted, SP for special permit, X for prohibited — so a use marked X is affirmatively prohibited rather than merely unaddressed. Recorded 'unknown' rather than 'prohibited' because the Village has never legislated on short-term rental specifically, and whole-house rental of a permitted one-family dwelling is arguably the residential use itself. Absence of a found STR provision is NOT permission. Ballston Spa is the Saratoga County seat and a walkable historic village a short drive from Saratoga Springs, so short-stay demand is real — get a written answer from the Village before underwriting it. Separately, New York State has required every short-term-rental host to register the unit with the State through the county registry since 2025, regardless of what the municipality allows, and Saratoga County HAS adopted a county-level short-term-rental programme: a 3% occupancy tax and a MANDATORY county registry, covering any room or space in a dwelling let for under 30 consecutive days. Registration runs two years, an unregistered host faces fines of up to $500, and the booking platform is separately liable for processing an unregistered listing — so Airbnb and Vrbo will delist. The City of Saratoga Springs runs its own registry alongside it. 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.
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- Last reviewed2026-08-01
ADU FAQ — Ballston Spa, NY
Are ADUs allowed in Ballston Spa, NY?
Village of Ballston Spa has 5 districts. All districts prohibit ADUs. Check your address with the free ADU checker, or confirm with the building department.
Do I need a special permit for an ADU in Ballston Spa?
No. No district in Village of Ballston Spa permits an ADU, so there is no permit to apply for. Codes change, so verify with the building department before ruling it out.
Can I use an ADU as a short-term rental in Ballston Spa?
No local short-term-rental law on record - which is not the same as permission for Village of Ballston Spa. 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.
What an ADU costs to build in Ballston Spa
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 Ballston Spa, priced by size.
More on Ballston Spa: Full zoning for new construction · ADU build cost · House build cost · All Saratoga County towns
ADU information for Village of Ballston Spa is compiled from the municipal code (last reviewed 2026-08-01) 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 municipality before relying on any answer. Source: Offsite / Aldo zoning dataset, municipalData.js.