Basement apartment
Turn a finished or unfinished basement into a private, income-producing rental with its own entrance.
New law starts Oct 1, 2026 — Utah’s new ADU law is now in effect
ADU Builder in Spanish Fork, Utah
Basement apartments, garage conversions, attached additions, and backyard cottages. We check what Spanish Fork allows on your lot, handle the permits, and build it.
Free home review · Licensed & insured general contractor · Serving Spanish Fork and Utah County
Spanish Fork · ADU rules
What Spanish Fork allows
Spanish Fork has been friendlier to ADUs than most Utah County cities for years. Back in 2019 the city expanded where ADUs are allowed, lowered the minimum lot size, and removed impact fees for them.
ADU-friendly city
Spanish Fork expanded its ADU rules in 2019, widening permitted zones, reducing the minimum lot size, and eliminating impact fees. The city also publishes an ADU guidebook for residents.
- ADUs have been allowed in more zones here than in most neighboring cities
- Impact fees were eliminated for ADUs in the 2019 code update
- Lots 11,000 sq ft and up now qualify for a detached unit under state law
- City setbacks, height, and parking rules still apply
Lower fees here can shave real money off the total project cost.
What ADUs rent for in Spanish Fork
Estimated ranges by unit size. Actual rent depends on finish, location, and season.
Last checked September 2026. Cities are rewriting these rules right now. We confirm Spanish Fork’s current ordinance, your zoning, HOA covenants, and utility capacity during your free home review, before you spend anything on design.
02 — What we build
Every type of ADU. One team to design, permit, and build.
Garage or shop conversion
Convert an existing detached garage or shop into a permitted, livable unit, often the fastest path to rent.
Attached addition
Add a self-contained living space onto your home with its own private entrance. Great for family.
Newly allowed on 11,000+ sq ft lots
Detached backyard cottage
A standalone home in your backyard, the type Utah’s new law opens up on larger lots.
03 — Home eligibility check
Check what your home qualifies for, free
Answer a few questions. We’ll tell you what’s likely allowed, then confirm everything with your city before you spend a dollar.
Your results appear here. Every answer is friendly. There’s almost always an option.
04 — Income calculator
Estimate what your home could earn
Pick your city, type, and size. Add financing to see your payment and monthly cash flow.
Your city
ADU type
Bedrooms
How you’d pay
Your current mortgage rate
This changes which option we recommend, not your payment.
Estimated monthly rent
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Project cost
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Payback
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Monthly payment
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Net cash flow
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10-year net cash flow, midpoint estimate
Estimates only. One ADU per lot. Payback is before taxes, insurance, and upkeep.
07 — Process
From home review to move-in ready
One team handles the whole thing: research, design, permits, and construction.
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01
Week 1
Free home review
We research your zoning, lot size, HOA, and utilities, then tell you exactly what your home allows, at no cost.
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02
Weeks 2–8
Design & permits
Floor plans, engineering, and every permit. We handle all the back-and-forth with your city.
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03
10–20 weeks
Build
Licensed crews handle site prep, framing, mechanical, electrical, plumbing, and finishes, inspected at every stage.
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04
Final week
Move-in ready
Final inspection, punch list, and a rent-ready unit handed off with permits closed out.
Free home review
Get your free home review
We’ll confirm what’s allowed on your lot and what it could earn, before you spend anything on design.
- We call you within 1 business dayQuick questions about your home and goals.
- We review your propertyZoning, lot, HOA covenants, and utilities.
- You get a clear recommendationThe best ADU type for your home and an estimate. No obligation.
Rather talk now? Call (435) 919-7275
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