Salt Lake City’s housing market has stayed hot in recent years, with demand for family-friendly homes and flexible living spaces continuing to rise. Whether you live in Sugar House, Millcreek, or The Avenues, adding square footage can give your property a competitive edge—if you choose the right project. Before you expand your living space with a custom addition, here’s what the data and local buyer trends say about which upgrades pay off the most at resale.
1. Primary Suite Over Garage
Why it works:
- Uses existing foundation and utilities, keeping costs moderate.
- Offers modern buyers a spacious bedroom, walk-in closet, and spa-like bath—amenities that older homes often lack.
Average ROI: Up to 65–70 % when designed with energy-efficient windows, double-sink vanities, and low-maintenance finishes.
2. Multi-Purpose Bonus Room
Think of a vaulted great room behind the kitchen or a bright loft above the garage. Buyers love adaptable spaces that can serve as a home office, teen hangout, or guest suite.
Key design tips:
- Include ample outlets and strong Wi-Fi coverage.
- Add built-in storage to keep the room clutter-free.
- Use large windows or skylights to capitalize on Utah’s natural light.
3. Accessory Dwelling Unit (ADU)
Salt Lake City’s updated zoning laws make detached or above-garage ADUs increasingly popular. An ADU can function as a rental for extra income or as an in-law suite—a big plus for multigenerational households.
Potential perks:
- Boosts property value by 20–25 % in neighborhoods where rentals are in demand.
- Offers tax advantages if rented out long-term.
Pro tip: Make sure the ADU has a separate entrance, kitchenette, and full bath to meet code and maximize appeal.
4. Four-Season Sunroom
A well-insulated sunroom with energy-efficient glass creates a year-round oasis that sets listings apart. Buyers are drawn to bright, versatile spaces for dining, reading, or plant keeping—especially valuable during Utah’s cold winters.
Cost factors:
- High-performance windows and heating add expense but also increase comfort and resale value.
- Return on investment ranges from 45–55 %, often higher if the space is integrated seamlessly with HVAC.
5. Kitchen-Bump Out
Rather than a complete overhaul, a modest bump-out—adding 40–80 sq ft—can provide room for an island, pantry, or breakfast nook without breaking the bank.
Why it’s smart:
- Kitchens consistently deliver strong resale returns.
- Smaller footprints keep structural changes manageable, speeding up permit approvals and construction time.
How to Maximize ROI on Any Addition
- Match Neighborhood Norms
Over-building can backfire. Keep size and finishes in line with comparable listings. - Prioritize Energy Efficiency
Low-E windows, LED lighting, and high-R insulation appeal to eco-conscious buyers and reduce utility costs. - Maintain Architectural Harmony
Blend rooflines, siding, and trim so the addition looks original to the home, not tacked on. - Plan for Function and Flexibility
Choose open layouts and neutral finishes that let future owners adapt the space to their needs.
If you’re ready to build a home addition with licensed contractors, work with professionals who understand local building codes, permitting hurdles, and market preferences. A well-executed addition not only enhances daily living for you but also positions your home to sell faster—and for more—when the time comes.
Final Thought
The “best” addition is one that meets both your lifestyle goals and the expectations of Salt Lake City’s buyers. From luxurious primary suites to income-generating ADUs, strategic expansions can deliver high satisfaction now and solid returns later. Plan carefully, build smart, and watch your investment grow.