Planning board begins overhaul of zoning definitions, asks staff for diagrams on frontage and lot rules

Newcastle — The Newcastle Planning Board spent much of its March 20, 2025 meeting reviewing a first pass of proposed zoning-definition changes aimed at clarifying terms such as frontage, frontage zone, lot area, and the distinction between temporary and accessory structures.

Planning staff framed the effort as a "first step" to clean up the core zoning code and recommended keeping definitions broad while placing regulatory standards elsewhere in the ordinance. "I like to have them very broad so that basically things don't fall outside of them," staff said, explaining that the definitions should avoid embedding standards that could create loopholes.

Board members debated specific items: whether land "within or under public rights-of-way" should be excluded from lot area calculations; how to treat corner, through and L-shaped lots; and whether waterfront and island lots require special handling in standards rather than definition text. The group also discussed a proposal to tie temporary-structure extensions to stated uses (for example, storing construction materials) and to add screening or utility thresholds to separate temporary from permanent accessory structures.

On "frontage," members disagreed about whether the term should designate a line or an area and whether a separate "frontage zone" is required for architectural components and setbacks. Multiple board members requested that staff bring diagrammatic examples next month so the board can visualize the relationship between the primary front lot line, frontage line, frontage zone and various setback lines.

No formal code changes were adopted at the meeting; staff will revise the drafts, prepare diagrams and return to the board for further review.