York planning staff propose sweeping density changes to meet LD1829

The Planning Board and planning staff presented Article 10F on June 22, a package of zoning amendments intended to put York ahead of LD1829 and related state housing statutes that require higher minimum densities in growth areas.

Staff explained the state’s framework: where water and sewer are available and an area is in a growth designation, the minimum lot size will be 5,000 square feet and towns must allow up to four dwelling units on that 5,000‑square‑foot lot. Planning staff described a mathematical approach—2.5 times a base residential density in some scenarios—that can yield substantially higher base densities for developments that qualify as affordable housing under state definitions.

Article 10F would add dimensional changes, pedestrian‑safety performance standards, and an option for market‑rate units inside larger projects: if a development has 10+ units, up to 30% of those units could be market rate while a majority would remain targeted to affordability thresholds (staff cited 80% AMI as the primary target and up to 120% AMI for the “missing middle” band). The amendment also includes a state‑required height allowance for qualifying affordable housing—planning staff referenced permitting increases to roughly 49 feet where the law allows taller buildings for affordable projects.

Select Board members asked for mock parcel examples and more analysis of how setbacks, buildable envelopes, and sewer/water capacity would interact with the new minimum lot size and density allowances. Several members expressed concern that adopting the overlay before the town finishes reworking base densities and growth‑area maps would lock in outcomes without a full view of the effects across other zoning districts.

Planning staff said they continue to work with stakeholders including York Housing and local developers and recognized the board’s request for more detailed visualizations and growth‑area work before layering this overlay on top of other major changes. They also noted the statutory compliance deadline (state provisions discussed in the presentation) driving the timing for some actions.

Next steps: planning staff will prepare additional analysis, examples and fuller growth‑area mapping; the board asked staff to return with clearer buildable‑envelope illustrations and a proposed sequencing for adoption that balances legal compliance deadlines and local evaluation of impacts.