Add Independent Living Space Without Leaving Your Lot
Accessory Dwelling Units (ADUs) in Farmington for homeowners who need rental income, guest housing, or separate living quarters on their property
High Altitude Renovations designs and constructs accessory dwelling units for homeowners in Farmington who need to create a standalone residence for aging parents, generate rental income, or provide private workspace separate from the main house. You might need a secondary structure that includes a full kitchen, bathroom, sleeping area, and its own entrance, built within setback and height limits that apply to your zoning district. These units must meet building codes for plumbing, electrical, and mechanical systems while fitting the character and scale of the existing property.
ADU construction begins with site evaluation and design. The location is chosen based on access to utilities, setbacks from property lines, and orientation for natural light. Foundation work involves pouring a slab or building a crawlspace, depending on soil conditions and frost depth. Framing follows residential standards for wall studs, floor joists, and roof trusses. Plumbing and electrical rough-ins are inspected before insulation and drywall close up the walls. Exterior finishes are selected to match or complement the main house, and interior finishes are chosen for durability and ease of maintenance.
If you need additional living space on your property but do not want to add onto the main house, contact us to discuss lot constraints, zoning requirements, and how an ADU would be designed and permitted.
How the Unit Is Built and Connected
ADU projects move through permitting, site preparation, foundation work, framing, systems installation, and finish work. You will see a foundation crew excavate and form the slab or footings, then pour concrete that cures for several days before framing begins. Walls are raised and sheathed, and the roof structure is set and covered with underlayment and shingles. Windows and doors are installed and flashed to prevent leaks.
Once the unit is enclosed, you will notice that it functions as a complete residence with its own heating, plumbing, and electrical systems. High Altitude Renovations ensures that water and sewer lines are connected to the main house or to municipal services, electrical panels are sized and wired to code, and HVAC equipment is installed and tested. The finished ADU will provide independent living space that increases the utility and value of your property without requiring you to purchase additional land.
Interior layouts typically include an open kitchen and living area, a separate bedroom, and a full bathroom with a shower or tub. Some designs add a small laundry closet or a covered porch at the entrance. Exterior finishes match the main house to maintain visual consistency, and landscaping is adjusted to create a pathway and entry that feels distinct but connected. Permitting requires submittal of site plans, structural drawings, and energy calculations that demonstrate compliance with state and local codes.
Planning and Code Considerations
Homeowners in Farmington often want to know about zoning limits, construction timelines, and utility connections. The answers depend on lot size, existing structures, and local regulations.
What size ADU is allowed?
Most zoning districts in Farmington permit ADUs up to a certain percentage of the main house square footage or a maximum of 800 to 1,200 square feet, depending on lot dimensions and setbacks.
How long does it take to build an ADU?
Construction typically takes three to six months from permit approval to final inspection, depending on weather, material availability, and the complexity of site utilities.
When do utilities need to be upgraded?
If the main house electrical panel or water service is undersized, upgrades are required before the ADU can be connected and inspected.
Why do ADUs require separate entrances?
Code requires that the unit function independently, with its own entrance, kitchen, and bathroom, so it can be used as a rental or separate residence.
What permits are required in Farmington?
You will need a building permit, electrical and plumbing permits, and possibly a zoning variance if your lot does not meet standard setback or coverage requirements.
When you are ready to add independent living space to your property, High Altitude Renovations will assess your lot, design a unit that meets code, and manage the permitting and construction process from foundation to final inspection.
