relative to annual reporting on accessory dwelling unit construction and use.

HB 1625 requires New Hampshire's Office of Planning and Development to produce an annual report on accessory dwelling units (ADUs), including data on their type (attached/detached), occupancy (owner, tenant, vacant), use as short-term rentals, affordability status, and conversions from existing structures. The report must include specific metrics to help state and local governments plan for housing growth and development. The bill takes effect July 1, 2026, and does not change ADU construction rules or funding requirements. The state anticipates the reporting system will require new staff and cost between $100,000 and $500,000 annually.