Planning commissioners approve zoning clearance for family addition, condition approval on attached construction and UDOT permit

Trenton planning officials voted to approve a zoning clearance allowing a new addition to be attached to an existing single-family home on a roughly 15-acre property, with conditions requiring the new structure to be attached so the residence will read as a single house and pending final approval from the Utah Department of Transportation (UDOT).

The matter was discussed after a contractor described plans to attach the new construction to the existing home, enlarge the septic system and use the existing water hookup. The contractor said the owners had combined parcels so the lot had been expanded from roughly two-thirds of an acre to about one acre, and that UDOT had indicated only one residential access would be allowed; the closer access will be closed and a second, existing access with a culvert will be used instead.

Commissioners and staff focused on whether the new work would constitute an internal accessory dwelling unit (ADU) under state law and local code. Staff advised that for the project to qualify as an internal ADU (and remain a single-family dwelling for zoning purposes) the new unit must be physically attached to the existing house and the finished building must “look like one house,” including a common wall connecting the new and old parts. Commissioners asked for a revised drawing showing the common wall and for the carport to be enclosed if needed so the exterior appearance would read as a single dwelling. They also discussed locating the new main entrance on the side or rear rather than creating two front entrances.

Staff said the parcel will proceed to county permitting once the planning commission’s zoning clearance is finalized and UDOT completes its conditional-use/access review and fees. A planning commissioner moved to approve the zoning clearance “with the noted changes on the e-drawing as well as the UDOT permit being brought up.” The motion passed on a voice vote; no roll-call tally was recorded in the meeting transcript.

Why it matters: The conditions clarify how Trenton treats additions that could otherwise appear as separate dwellings, and they set the next steps for county permitting. The requirement to show a common wall and to submit revised drawings gives the planning staff and county building officials material to inspect for building, fire and health-code compliance before a permit is issued.

Key details discussed - Project scope: build an addition attached to an existing house on a combined set of parcels totaling roughly 15 acres, with the building lot expanded from about two-thirds acre to about one acre (contractor statement). - Septic and utilities: contractor said a new, enlarged septic system permit is in place and the project will use the existing water hookup. - UDOT access: UDOT’s review indicated only one residential access is permitted; the closer access will be removed and the other access (existing with a culvert) will be used. - Attachment requirement: staff and commissioners insisted on a common wall and exterior treatment so the property reads as a single-family dwelling (internal ADU), and asked for revised site/floor drawings to show compliance. - Front entrances: commissioners advised the new unit’s main door should be side- or rear-facing so the façade does not present two front doors.

Action taken - Motion: Approve the zoning clearance with the noted changes on the e-drawing, and contingent on UDOT permit finalization. (Mover/second not specified in transcript.) - Outcome: Approved (voice vote). The transcript records “All in favor? Aye. Any opposed? Okay.” No roll-call vote or named vote tally was recorded.

Next steps and constraints - Staff will collect the revised drawing showing the common wall and any enclosure of the carport and will forward required documents to McCall (staff) for the county permitting process. - County building inspection will determine additional upgrades required to bring the older portion of the house up to current building, plumbing and electrical codes at the time of permitting.

Speakers quoted or paraphrased in the meeting included a contractor describing the development plans, a participant identifying himself as Kevin Pack during public comment, and planning commissioners and staff directing the changes and approval conditions. No named commissioner spoke on the record in the provided transcript excerpt about who made the motion; the motion language appears in the transcript but is not tied to a named speaker.