Accessory Structures in Noblesville, IN (2026)
3 verified accessory structures rules for Noblesville, Indiana, sourced directly from the municipal code and official government pages.
Verified from official government sources
ADU Rules
Noblesville's Unified Development Ordinance regulates accessory dwelling units under § 159.121(D)(15). ADUs may share an entrance with the main house or use a secondary one, must connect to the principal dwelling's utilities, and cannot add a front-façade entrance or exterior stairway.
Noblesville Accessory Dwelling Unit Design Rules
Some RestrictionsNoblesville Code of Ordinances § 159.121(D)(15)(a)-(e)
(a) May be accessed either through a secondary entrance on the property or the main living quarters. (b) ADU must be connected to the utilities of the primary dwelling unit (principal building). Separate metering is prohibited. (c) The ADU shall be designed to blend with the architectural and exterior appearance of the principal building. To the degree reasonably feasible, the appearance ...
ADU Rental Restrictions
In the City of Noblesville, an accessory dwelling unit approved under the Unified Development Ordinance is not a general rental unit. Section 159.121(D)(15) says the ADU is initially intended for relatives or resident domestic employees, and only one ADU is permitted per lot or parcel.
Noblesville ADU Rental Restrictions For Relatives
Significant RestrictionsNoblesville Code of Ordinances § 159.121(D)(15)(f)-(g)
(f) The accessory dwelling unit is initially intended for relatives or resident domestic employees. (g) One accessory dwelling unit is permitted per lot or parcel.
Shed & Carport Rules
A shed or other detached accessory building in the City of Noblesville is capped by lot size under § 159.121(B)(3): 50% of the principal house's footprint or 1,000 square feet on a lot of an acre or less, whichever is smaller. Sheds 200 square feet or less skip the building permit entirely under division (C).
Noblesville Shed Size, Setback and Permit Rules
Some RestrictionsNoblesville Code of Ordinances § 159.121(B)(3)(a), (C)(1)(c)
(3) Where permitted detached accessory structure’s size, height, and setback are based on the following standards: (a) In the case where the property is one acre or less in size: The combined square footage of all accessory structures shall be limited to 50% of the square footage of the principal building or 1,000 square feet, whichever is less. ... (c) Accessory structures two hundred (2...
Looking for Hamilton County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Noblesville city rules.
Accessory Structures in Hamilton County →