Building height is capped by your city. In the Fishers R3 single-family district, the maximum building height is 35 feet. Carmel's single-family residential districts also cap most homes at about 35 feet.
Hamilton County cities set maximum building height through their zoning ordinances under IC 36-7-4. In the Fishers UDO R3 Residential District (Sec. 3.2.4), the maximum building height is 35 feet. Carmel's primary single-family residential districts likewise limit homes to roughly 35 feet. Height is measured per each city's UDO definition, and accessory structures usually have a lower cap. Districts with different densities (townhome, multifamily, commercial) carry their own maximums, and overlay districts may add restrictions. Only unincorporated parcels follow the county Plan Commission's height standards. Confirm your parcel's city, zoning district, and any overlay before designing a tall or multi-story structure.
Exceeding the district height maximum is a zoning violation; a variance from the city Board of Zoning Appeals is required to build taller.
Other ordinances people look up for this city. Green dot = verified primary-source excerpt.
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See how Hamilton County's structure height limits rules stack up against other locations.
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