Zoning Amendment Committee proposes six ordinance clarifications; Planning Board schedules Dec. 17 public hearing

The Zoning Amendment Committee presented six proposed amendments to Alton’s zoning ordinance and the Planning Board set a public hearing for Dec. 17, 2024.

The proposed changes are chiefly clarifying and organizational, the committee said: adding definitions for terms used in the ordinance, expanding definitions for accessory dwelling units and seasonal cabins, reorganizing rules on nonconforming structures and uses, distinguishing modular/pre-site building housing from manufactured home park standards, clarifying that only one residential use is permitted per lot in the residential-rural zone, and adding a new list of potential conditions the Zoning Board of Adjustment may attach to approvals.

Why it matters: The amendments change how staff, applicants, and property owners interpret existing rules such as setbacks, permissible use changes and replacement/expansion of nonconforming structures. Revisions to nonconforming-use language and manufactured housing standards could affect permitting for additions, replacements and conversions.

Highlights of the six proposals: - Article 200 definitions: Add or clarify definitions (boathouse, cupola, density, fence, legal footprint, front yard, etc.). - Accessory dwelling units/seasonal cabins: Expanded definitions to reduce ambiguity in permitting ADUs and seasonal structures. - Nonconforming structures/uses/lots (consolidated): Reorganize and remove language that allowed special exceptions in places where a variance should be required; permit certain changes where a use has equal or lesser impact and limit expansions (a 10% guidance item for staff processes was discussed). - Manufactured/pre-site building housing: Separate modular/pre-site building housing definitions from manufactured-home-park standards and create a discrete section for each. - Residential-rural zone restriction: Add text to confirm only one residential use is permitted on a lot in that zone (to align with other zones). - Article 500, Section 535: Add a nonexhaustive list of conditions the Zoning Board could apply when granting special exceptions and variances.

Committee members said many changes are housekeeping or respond to recurring interpretive problems raised by the building inspector and planning staff when processing applications. Tara Bamford, who helped draft the nonconforming-use reorganization, explained the proposal would limit voluntary replacement of nonconforming structures and allow controlled changes of use when impacts are not increased.

The Planning Board scheduled a public hearing on these proposed amendments for Dec. 17 at 6 p.m.; a snow date of Jan. 21 was discussed for weather contingency.

Next steps: The Dec. 17 public hearing will solicit comment and the board will consider whether to forward amendments to Town Meeting or other formal adoption paths.