Can You Draw Your Own House Plans for a Permit? (Yes — Here's How)

If you're planning a room addition, garage, deck, or even a new house on your own lot, the first question that usually stops people cold is this: do I have to hire someone to draw the plans, or can I do it myself?

The short answer is: in most jurisdictions, yes — you can draw your own house plans and submit them for a permit. It's called owner-drawn or owner-builder plans, and building departments across the country accept them every day. But there are real limits, and what's allowed depends entirely on where you live and what you're building.

This guide walks you through what owner-drawn plans are, what they need to include, when you'll need professional help, and how to actually get your drawings accepted.

Disclaimer: The rules around owner-drawn plans, engineer stamps, and permit submissions vary by state, county, and city. Nothing here is legal or engineering advice. Always confirm requirements with your local building department before you start.

What Are Owner-Drawn Plans?

Owner-drawn plans (sometimes called owner-builder plans) are construction drawings prepared by the property owner rather than a licensed architect or designer. Most jurisdictions allow this for residential projects — meaning a single-family home or accessory structure on property you own and plan to occupy.

The reasoning is straightforward: you have a right to build on your own property, and simple residential construction doesn't always demand the expertise of a licensed professional. A homeowner adding a bedroom, building a detached garage, or finishing a basement is often well within their ability to document what they intend to build.

That said, "owner-drawn" doesn't mean "anything goes." The drawings still need to communicate the project clearly enough that a plan reviewer can verify code compliance. Sloppy, unscaled sketches get rejected. Legible, dimensioned, to-scale drawings get approved.

The Real Limits: When You Can't Just DIY the Plans

There are situations where owner-drawn plans won't be accepted, or where certain portions of your plans must be prepared or stamped by a licensed professional. Here are the most common ones:

Structural or engineered elements

If your project involves structural changes — removing a load-bearing wall, designing a new foundation, specifying beam or header sizes for large spans, or adding a second story — most jurisdictions require a licensed structural engineer to design and stamp those elements. You might still draw the rest of the plans yourself; the engineer just handles the structural pages.

New construction thresholds

Some states or counties require a licensed architect or engineer for any new residential construction above a certain square footage. Others require it for all new construction, period. There's no universal rule — it depends on your location.

Commercial or multi-family work

Owner-drawn plans are generally a residential privilege. Commercial buildings, multi-family housing (duplexes, apartment buildings), and mixed-use projects almost universally require a licensed design professional. If you're building anything other than a single-family home or simple accessory structure, expect that requirement.

HOA and lender requirements

Even if your building department accepts owner-drawn plans, your HOA or mortgage lender might not. If you're financing a construction project, check with your lender early — some require architect-stamped drawings regardless of what the building department asks for.

What Your Drawings Must Include

Every building department has its own submittal checklist, but most residential permit packages share a common core. Here's what to expect:

Floor plan(s)

• Drawn to a consistent, stated scale (e.g., 1/4" = 1'-0")
• All rooms labeled with their use (bedroom, kitchen, bathroom, etc.)
• Wall dimensions, room dimensions, and overall building dimensions
• Door and window locations, with sizes noted
• Location of stairs, if applicable

Site plan

• Shows the property boundary and where the structure sits on the lot
• Distances from the structure to all property lines (setbacks)
• Location of existing structures, driveways, and utility connections

Elevations

Many jurisdictions require exterior elevation drawings (front, rear, and at least one side) showing wall heights, roof pitch, windows, and doors as they'll appear from the outside. Not every department requires all four elevations for simple additions, but it's worth asking.

Title block

Every sheet needs a title block in the corner identifying the project address, the sheet name, the scale, the date, and who prepared the drawings. This is basic drafting practice, but it's also a formal submittal requirement.

Notes and specifications

Building material callouts, insulation values, and any relevant notes about construction methods. Some departments want these on the drawings; others accept a separate spec sheet.

For a deeper dive into what each drawing type requires, see our guide on how to draw floor plans for a building permit.

Step-by-Step: Drawing Your Own Plans for a Permit

Step 1: Call your building department first

Before you draw a single line, call or visit your local building department and ask two questions: (1) Do you accept owner-drawn plans for this type of project? (2) Can I get your residential permit submittal checklist?

Most departments are happy to answer both. This one call can save you from doing work the wrong way and having your plans rejected.

Step 2: Measure your existing space (or your lot)

Whether you're adding to an existing structure or starting from scratch, accurate measurements are the foundation of accurate plans. Measure every wall, door opening, and window opening. For a site plan, you'll need your property survey or a copy of your plat — available from the county assessor or recorder in most areas.

Step 3: Draw to scale

This is where many homeowners get tripped up. "To scale" means every element on the drawing is proportionally accurate — a 10-foot wall is drawn exactly twice as long as a 5-foot wall, at whatever scale you've chosen.

A tool like Easy Draft handles this automatically: you set real-world dimensions and the software keeps everything proportional as you draw. When you export, the scale is locked in and labeled on the sheet. No manual math, no guessing.

Step 4: Add required details

Once your floor plan is to scale, add room labels, dimension strings, window and door sizes, and any notes the building department requires. Fill in your title block. If you need elevations, draw those on separate sheets at the same scale.

Step 5: Export a clean PDF

Most building departments now accept digital submissions — either uploaded to a portal or submitted via email. A clean, high-resolution PDF is the standard format. Make sure each sheet is on an appropriate paper size (typically 24"x36" or 11"x17", depending on your department's preference) and that the scale prints correctly.

Easy Draft exports permit-ready PDFs directly from the browser, already formatted with a title block and scale notation — so what you submit looks like it was drawn by someone who knows what they're doing, because the format is right.

Step 6: Submit and respond to corrections

Plan review takes anywhere from a few days to several weeks, depending on your department's workload. If the reviewer sends back correction requests (called "plan check comments" or "corrections"), read them carefully and address each one. Owner-drawn plans sometimes get more scrutiny than professional submissions, so expect at least one round of revisions on a first submission.

How to Improve Your Chances of Approval

A few things that consistently help owner-drawn plans get through faster:

• Get the checklist and follow it exactly. Don't guess what the reviewer wants. Every item on the checklist is there because someone's plan was rejected for not including it.
• Use real software, not graph paper. Digital plans are easier to revise when corrections come back. They also read more clearly on screen during digital review.
• Label everything. If a reviewer has to guess what a room is for or what a wall height is, they'll send it back. Label room uses, ceiling heights, door swing directions, and any structural materials.
• Don't undersize egress windows or doorways on paper. If a bedroom window is supposed to meet egress requirements, make sure the dimensions on the drawing actually reflect that. The reviewer will check.
• Ask before you assume. If you're unsure whether something requires a stamp or a special detail, call and ask. Most plan reviewers will tell you what they need — they'd rather answer a question upfront than reject a submittal.

Should You Hire Someone Instead?

Owner-drawn plans make sense for straightforward projects: adding a room, building a garage, finishing a basement, constructing a simple deck. If your project is more complex — new construction, structural modifications, anything with unusual spans or load paths — the cost of hiring a designer or engineer upfront is usually less than the cost of rejected plans, project delays, or worse, a structure that fails inspection.

If you're on the fence, read our piece on whether you need an architect for a home addition — it walks through the decision honestly, including when a full architect isn't necessary but a structural engineer might be.

And if you're wondering what professional drawings actually cost before you commit to doing it yourself, our breakdown of how much it costs to have house plans drawn gives you real numbers to compare against.

The Bottom Line

Drawing your own house plans for a permit is legal and practical for most residential projects in most places. What it requires is accurate measurements, drawings to scale, the right details and labels, and a willingness to follow your specific building department's submittal checklist.

The biggest mistake people make is assuming the rules are the same everywhere. They're not. A jurisdiction in one county might happily accept a homeowner's PDF floor plan; the next county over might require an architect's stamp for anything above a certain square footage. The only way to know is to ask.

Call your building department. Get the checklist. Draw clean, accurate plans to scale. Submit a clear PDF. That's the whole process — and it's genuinely within reach for anyone willing to do it right.