Home Additions in Cache Valley, Utah
Most home additions in Cache Valley run $150,000 to $250,000. We publish our numbers before you call, so you know where you stand.
Request Your Estimate
A few questions so we can give you a real number.
We use these details only to contact you about your project. We do not sell or share them. See our Privacy Policy.
Detailed Scope, One Price
Design-Build Under One Contract
1-Year Workmanship Warranty
Serving Cache Valley
Ask The People We Built For
We have been building in Cache Valley since 2023. Our reviews live on Google and Facebook, where we have no ability to edit or remove anything — so read them there rather than take our word for it.
Built To Look Like It Belonged There
An addition is the most complex thing we build, and it is the project where the gap between what people expect and what is actually involved is widest. The phrase that gets us every time is “we are just adding a room.” You are not. You are pouring a foundation, framing and roofing a structure, running electrical, plumbing and HVAC into it, and then marrying all of that into a house that is already finished and standing.
That last part — the tying-in — has no equivalent in new construction, and it is usually the hardest part of the job. The roof has to meet the existing roofline and stay watertight for thirty years. The floor has to land level with the floor it opens onto. The new siding has to sit against fifteen-year-old siding without looking like an afterthought.
Most additions here run three to six months of construction and land between $150,000 and $250,000. Before any of that there is design, structural engineering and permitting, which move at the jurisdiction’s pace rather than ours.
The Additions We Actually Get Asked For
Most additions are not a simple room bolted onto the back of a house. They are usually tied to fixing how the whole home works — which is why they touch more of the existing structure than people expect.
- Garage extensions, sometimes with living space above
- Kitchen expansions that open up the back of the house
- Living room or family room additions
- Creating or expanding a primary suite
- Mudrooms, entries and the spaces that fix daily traffic
Three Levels, And What Sits Behind Each
Additions carry the widest range of anything we build — $80,000 to $400,000 and up. That is not vagueness. It reflects genuinely different projects, and size is not the main thing separating them.
Small Addition
A smaller room addition with a simpler layout and limited plumbing or utilities. Still a foundation, still a roof tie-in — but fewer systems to extend and less structural work against the existing house.
Mid-Range
Larger spaces with real integration into the existing home, structural work, and utility extensions. This is where most of ours land, and where a primary suite usually sits.
Large or Complex
Multiple rooms, significant square footage, garage builds with living space above, major structural change, higher-end finishes. Effectively a small house attached to your existing one.
You Are Not Adding A Room. You Are Building A House.
This is the single biggest gap between what homeowners expect and what an addition costs. “We are just adding a room” sounds modest. But you are doing nearly every step of new construction — foundation, framing, roofing, electrical, plumbing, HVAC — and then tying all of it into a house that is already standing, level, and finished. The tying-in is the part that has no equivalent in new construction, and it is often the hardest part.
Foundation
Unlike a remodel, an addition starts from the ground. Excavation and concrete before a single stick of framing goes up, and before you see anything that looks like progress.
Structural engineering
Almost always required to tie the new structure safely into the existing one. It is a real line item, it happens before construction, and it is not optional.
Roof tie-ins
Every addition has to marry into the existing roofline. It is one of the most technically demanding parts of the job and the one most likely to cause problems later if it is done cheaply.
Utility extensions
HVAC capacity for the new space, electrical service that can carry it, and plumbing if there is a bathroom or a kitchen involved.
Three To Six Months, Plus Planning
Additions run three to six months of construction for most projects. What people underestimate is everything in front of that — design, engineering, and permitting, which move at the jurisdiction’s pace rather than ours.
Before we break ground
Design, structural engineering, and permit review. Additions get more scrutiny than remodels because you are changing the footprint of the building.
Construction
Foundation, framing, roof tie-in, dry-in, mechanicals, then finishes. More inspection points than any other project we do.
Questions We Get About Additions
Between $80,000 and $400,000 or more. Small additions with simpler layouts and limited utilities run $80,000 to $150,000. Mid-range additions with real structural integration land between $150,000 and $250,000. Larger projects with multiple rooms, garage builds with living space above, or major structural change start around $250,000.
Because a remodel works inside a structure that already exists. An addition builds a new one. Foundation work alone runs $10,000 to $30,000, structural engineering adds $6,000 to $7,000, and utility extensions another $10,000 to $30,000 — all before you get to the framing, roofing and finishes that people picture when they imagine the project.
Three to six months for most, and larger or more complex builds run longer. Permitting and planning sit before that and add weeks depending on the jurisdiction and the time of year. An addition also has more inspection points than a remodel, because you are inspecting foundation, framing, mechanical rough-in and finish separately.
Almost always, yes, and we will say so. Finishing a basement gives you real square footage without a foundation, a roof or an exterior envelope, which is why it costs a fraction of what the same area costs as an addition. If your goal is space rather than a specific room in a specific place, ask us to price both before you commit.
That is one of the first things to check, and it is free to check. Setbacks, lot coverage limits, easements and in some cases an HOA all constrain where and how far you can build. We would rather find out in week one than after you have paid for a design that cannot be permitted.
Usually not dollar for dollar, and anyone who tells you otherwise is selling. Additions are a lifestyle decision more than a financial one. They make sense when the alternative is moving, when the layout is the actual problem, or when you plan to stay long enough that living well in the house matters more than the resale arithmetic.
Worth Reading Before You Build
Create The Feel Of Your Forever Home
Serving Cache County and Box Elder County, from Logan.