If you have spent a few evenings dragging walls around in a free floor plan app, you are in good company. Many of the families who walk into our Smithfield office arrive with a printout, a napkin sketch, or a folder of screenshots. They know exactly how they want to live, and they want to know one thing: can I just design this house myself?
The honest answer is yes, you can. You can also save real money doing much of the design work yourself. But there is a gap between a floor plan that looks right on a screen and a set of plans that a building department will approve and a builder can price and build. This guide explains where that gap is, what free software can and cannot do, and when it makes sense to bring in a professional drafter.
Key Takeaways
- Utah law generally allows homeowners and non-architects to prepare plans for one- and two-family homes.
- Free floor plan software is excellent for exploring layouts, but it does not check code, structure, or snow loads.
- A building permit requires a complete plan set, not just a floor plan.
- The most cost-effective path for most people is to sketch the layout yourself, then have a drafter turn it into buildable plans.
- Professional drafting in Cache Valley typically costs a small fraction of the overall build budget.
Yes, You Can Legally Design Your Own House in Utah
Utah does not require a licensed architect for most single-family homes. The state’s architect licensing law includes an exemption for plans for one- and two-family dwellings, which you can read in Utah Code Section 58-3a-304. That exemption is why residential drafters like us can produce plans for custom homes, and it is also why a homeowner can legally draw their own.
Legal, however, is not the same as approved. Your county or city building department still has to review the plans against the adopted residential code before it issues a permit. In Cache County, that means plans that satisfy the International Residential Code as adopted by Utah, plus local amendments. Our plain-English guide to Utah building codes for homeowners covers what reviewers look for.
What Free Floor Plan Software Does Well
We are genuinely fans of homeowners using these tools. Free and low-cost apps are good at:
- Testing room sizes and seeing whether your furniture actually fits.
- Comparing an open layout with a more traditional one.
- Visualizing the house in 3D so you can get a feel for the flow.
- Communicating your ideas clearly to your family, your builder, and your drafter.
A client who has already worked through these questions in software usually makes faster decisions in the design phase. If you are still deciding on overall size, start with our room-by-room guide to how many square feet you actually need.
What Free Floor Plan Software Can’t Do
Here is where a pretty layout and buildable house diverge.
It Doesn’t Check Your Plans Against Building Code
Most consumer apps will happily let you draw a bedroom with no egress window, a staircase that is too steep, a hallway that is too narrow, or a bathroom without proper clearances. None of those mistakes is obvious until a plan reviewer flags it, or worse, until an inspector does.
H3: It Can’t Engineer for Cache Valley Snow
Northern Utah roofs carry heavy snow loads, and the required design load changes with elevation. Free software does not size headers, beams, or roof framing, and it has no idea whether your lot sits on the valley floor or up on the bench. You can look up the design loads for your site on the ASCE Hazard Tool, but translating those numbers into framing is real structural work. We explain the details in designing for Utah winters.
It Doesn’t Produce a Permit-Ready Plan Set
A floor plan is one sheet. A permit set typically includes a site plan, foundation plan, floor plans, exterior elevations, building sections, roof and framing plans, and electrical layouts. If those terms are new to you, our guide on how to read house plans walks through every sheet. You can also open one of our finished home plan sets to see what a complete set looks like.
It Can’t See Your Lot
Setbacks, slope, utility locations, easements, and the direction of the view all shape the right design. A layout drawn without the lot in mind often has to be flipped, rotated, or reworked once it meets the real site. Our post on how to choose a lot in Cache Valley explains the site factors that matter most.
It Won’t Warn You When Something Is Expensive to Build
A software model will let you add another roof valley, an offset wall, or a cantilever without a second thought. Each of those choices adds framing labor and material. Someone with construction experience spots them immediately and can suggest a simpler option that keeps the look you want.
The Smart Middle Ground: Sketch It Yourself, Then Hand It Off
For most families, the best value is not choosing between doing everything yourself and hiring someone to do everything. It is splitting the work.
You do what you know best: how your family lives, which rooms matter, where you want the kitchen, and how much space you need. You sketch it on graph paper or in an app. Then a drafter does what software cannot: checking code, sizing structure, fitting the plan to the lot, simplifying anything expensive, and producing the full plan set.
That is exactly how many of our projects begin. Our home drafting services are built to work from client sketches, photos, and inspiration pictures, and our article from sketch to blueprint shows each step. If you started from a plan you bought online, read stock house plans vs custom home design before you build it as drawn.
Signs It’s Time to Call a Drafter
Designing alone works for early ideas. Bring in a professional when:
- You are ready to apply for a building permit.
- Your builder or lender has asked for a complete set of plans.
- The house has a basement, a second story, vaulted ceilings, or large open spans.
- Your lot is sloped, narrow, or has a view you want to capture.
- You have redrawn the same layout several times and something still feels off.
- You want an accurate bid from a builder before you commit.
Many of the custom home building mistakes Utah homeowners regret most trace back to plans that skipped this step.
What It Costs to Turn Your Design Into Real Plans
Professional drafting costs far less than most people expect. We price by the square foot: $0.80 for main living areas, $0.40 for basements and second floors, and $0.20 for attached garages. A home with a 2,000 square foot main floor, a 2,000 square foot basement, and an 800 square foot garage would come to about $2,560 in drafting fees.
That is less than a single framing change in the field usually costs. Our custom home design cost guide for Logan, Utah breaks the pricing down in more detail, and you can compare a drafter with an architect in home draftsman vs architect.
Frequently Asked Questions
Can I submit my own drawings for a building permit in Cache County?
Yes, if they meet code and include every sheet the building department requires. Check the submission requirements with the Cache County Building Department or your city before you apply. Incomplete sets are the most common reason for delays.
Do I need an architect to design a house in Utah?
Usually not for a one- or two-family home. A residential drafter can prepare your plans, which typically costs much less than full architectural services.
Will a drafter just redraw my sketch?
No. A good drafter keeps the layout you love, then corrects code issues, adds structure, fits the house to your lot, and suggests changes that save money.
How long does it take to turn a sketch into plans?
Most custom plans take four to eight weeks, depending on size and revisions. See our permit to move-in timeline for the whole build.
Bring Us Your Sketch
Designing your own house is one of the most rewarding parts of building. You should absolutely do it. Just do not let a free app be the last set of eyes on your plan before construction starts.
Poulsen Home Design has drafted custom homes in Cache Valley since 1997. Mont and Mary-Ellen Poulsen worked as general contractors before moving to design and drafting full time, so every plan we draw is checked against how it will actually be built. Learn more about our team, browse our home plans, or read how to prepare for your first meeting with a home designer.
Ready to turn your sketch into a real plan? Call or text (435) 512-5852 or contact Poulsen Home Design for a free consultation.