Can you build a PSL Modular unit in Maine?

Yes, broadly. LD 2003 (signed 2022, fully phased in by 2024) requires every municipality to allow at least one ADU on a lot with an existing single-family home, by right in most residential areas. Crucially, a town must allow the ADU even if the owner doesn't live on the lot (no owner-occupancy requirement). Towns set the maximum size but must allow at least 190 sq ft, and local rules can be more permissive but not more restrictive than the state standard.

For one- and two-unit modular homes, the Maine Manufactured Housing Board (within the Department of Professional and Financial Regulation) governs the program — it licenses companies, requires factory inspection, and the unit carries an approved label/seal evidencing certification to the Board's adopted ICC codes. Your local jurisdiction permits the site work — foundation, utilities, zoning.

Maine's residential modular program covers one- and two-unit homes and townhouses. For 3+ unit residential and commercial buildings, the state currently lacks a separate modular code and inspection system — a known gray area — so those projects route through local building departments and standard processes. Plan the inspection path early on larger jobs.

Snow and cold. Maine winters demand a high-performance thermal envelope and roofs designed for heavy ground-snow loads, especially inland and in the mountains. The coast adds wind exposure. Seismic risk is low. PSL Modular sets the snow load and envelope from your site coordinates.

Yes — Maine's coast and lakes are strong cabin and seasonal-rental markets, and modular places a finished, winter-ready unit quickly through a short build season. The Board seal clears the building; your work is the town land-use, septic, shoreland zoning, and any local STR ordinance.