Commission debates workforce-housing and ADU provisions in development-code update; staff to rewrite workforce-housing section and seek agency input

During a lengthy workshop Aug. 22, 2025, the Mariposa County Planning Commission reviewed proposed development-code amendments focused on housing types, workforce housing provisions, density bonuses and standards for recreational vehicles and park trailers. The commission did not adopt the workforce-housing text presented; staff agreed to revise the proposal and return it for additional review. Nut graf: Commissioners identified several conflicts and gaps in the draft — overlapping authorities with state Housing & Community Development (HCD) and Health & Safety code requirements, unclear references to environmental‑health “policies” versus county code, potential conflicts with Cal Fire standards and redundancy with the county’s existing planned-residential/cluster-development provisions — and asked staff to bring back a rewritten workforce-housing section after consulting Environmental Health and other agencies. Key points from the discussion included: - Overlap with existing tools: Staff and several commissioners said many of the workforce‑housing goals can be achieved under the county’s planned-residential/cluster-development (PRD) rules, which already allow clustering, varied housing types and (for larger parcels) open-space preservation. Commissioners debated whether a new, standalone workforce‑housing section is necessary or whether adjustments to the PRD language would suffice. - Density and ADU accounting: Commissioners asked how the county would calculate density for a PRD that proposes clustered housing and ADUs on a single parcel. Staff said density should be based on the zone’s allowed residential units and that state ADU law would also apply if an applicant proposed ADUs. Commissioners discussed a hypothetical 20-acre Mountain Home parcel and whether the county’s calculation would yield 8 units (per current zoning density rules) plus any ADUs allowed by state law; staff said state ADU rules must be applied where ADUs are proposed. - Density bonus and affordability requirements: The draft incorporated state density-bonus provisions and increased local bonuses slightly; commissioners pressed whether workforce housing that is not income‑restricted (for example, employer‑provided housing for workers who earn above the “very low” threshold) could qualify. Staff noted the state’s density-bonus statute ties bonuses to recorded affordability covenants and income tiers (very low, low, moderate), and that the county can adopt greater or lesser bonuses under local findings but must document how concessions satisfy public-purpose findings. - Health, septic and agency standards: Commissioners questioned proposed text that referenced Environmental Health “policies” rather than county code. Several commissioners asked staff to invite Environmental Health to explain the need for additional septic/inspection provisions proposed in the draft; staff agreed to request Environmental Health’s presence at a subsequent meeting. - RV/park-trailer and HCD jurisdiction: Multiple participants (including public commenter Ken Melton) noted that HCD regulates manufactured‑home and park‑trailer construction and in‑park standards; commissioners and staff agreed to clarify which development elements are local land‑use decisions and which are HCD-regulated building standards. - Fire and access: Commissioners raised Cal Fire access, defensible-space and water-supply concerns and asked staff to ensure any project submittal would be circulated early to Fire and Cal Fire reviewers. - Procedural/permit level: Commissioners discussed whether PRDs or workforce-housing projects should be allowed administratively (administrative use permit) or require discretionary (planning commission) review. Several commissioners favored lowering barriers by using administrative approval where impacts are within zoning allowances and elevating projects to commission review only when applicants seek density bonuses or other exceptions. Outcome and next steps: Staff will rework the draft workforce‑housing section (17.52.0xx) to resolve conflicts, remove redundant RV‑park text and align references to county code and state law; staff will also invite Environmental Health and Cal Fire to provide technical input at a future meeting. The commission agreed to move the Sept. 5 meeting to Sept. 12, 2025, and to return the development-code discussion to a future agenda after staff brings draft revisions and requested agency clarifications. Ending note: Commissioners repeatedly emphasized the county’s need to make housing options feasible while ensuring projects meet health, fire‑safety and infrastructure standards; staff said they will supply revised code text and supporting analysis before the next hearing.