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Barrington City Zoning Code

ARTICLE XXII

Accessory Dwelling Units

§ 185-141 Eligibility.

A. 
Eligibility. One ADU per lot is allowed under the following circumstances:
(1) 
On an owner-occupied property as a reasonable accommodation for family members with disabilities; or
(2) 
On a lot for which the primary use is residential; or
(3) 
Where the proposed ADU is located within the existing footprint of the primary structure or existing accessory attached or detached structure and does not expand the footprint of the structure.
B. 
Dimensional requirements.
(1) 
All ADU's shall comply with the dimensional standards for an accessory structure in the same zoning district.
(2) 
The maximum unit size for an ADU is as follows:
(a) 
For a studio or one bedroom ADU, 900 square feet or 60% of the floor area of the principal dwelling, whichever is less.
(b) 
For a two bedroom ADU, 1,200 square feet or 60% of the floor area of the principal dwelling, whichever is less.
C. 
Prohibition of short-term rental.
(1) 
ADUs cannot be offered or rented for tourist or transient use (defined as occupancy less than 30 days) or through a hosting platform.
D. 
Procedural requirements.
(1) 
ADUs shall be allowed as part of applications for new primary dwelling units or subdivisions. For proposed ADUs that are part of a larger development proposal, such ADUs shall not be counted toward density of the proposal.
(2) 
Any application that includes ADUs may be considered through a unified development review process.
(3) 
An ADU that does not meet the requirements of this section shall be reviewed through an application for a variance.
E. 
Sunset provision.
(1) 
The provisions of this article shall expire 18 months from the date of enactment unless renewed by the Town Council in the same manner as the enactment of a new ordinance.