How to Create a Floor Plan for Your House

Before you renovate, build, or redesign a space, you first need a clear understanding of the layout.

That’s where a floor plan comes in.

A floor plan is a scaled drawing that shows the layout of walls, doors, windows, and rooms, helping you understand how the space actually works before you start making changes.

It’s also one of the first things architects, contractors, and permit offices will ask for.

The good news is that creating a floor plan is much easier than most people expect. With RoomSketcher, there are several ways to get started, depending on what you already have.

Choose Your Starting Point

Most homeowners fall into one of these situations:

• You have an old floor plan as a sketch, blueprint, PDF, or image
• You have an existing home but no floor plan
• You’re designing a new build completely from scratch

Each situation needs a slightly different approach.

Path A: You Already Have a Floor Plan

A lot of homeowners already have some kind of floor plan, but it usually isn’t in a format that’s easy to edit or work with.

Maybe you found an old blueprint, received a PDF from a real estate listing, sketched the layout by hand, or want to update an outdated plan before renovating.

In most cases, you don’t need to start over from scratch. If you already have some kind of plan, you’re starting from the easiest position.

Check that the plan is still accurate

Before you digitize anything, quickly verify that the plan still matches the actual property.

Older floor plans are often outdated. Extensions, renovations, moved walls, and informal changes may never have been added to the original drawings.

Walk through the property with a tape measure and check:

• Overall exterior dimensions
• Main room sizes
• Door positions
• Window placements

If the plan and the property disagree, trust the property.

If you’re unsure how to interpret symbols, dimensions, or wall types, we've put together a quick guide on how to read a floor plan.

Once everything looks accurate, you can choose how you want to digitize the plan.

Option 1: Convert with AI

One of the easiest ways to reuse an existing floor plan is to digitize it.

Instead of redrawing everything manually, you can convert the plan into an editable digital project.

That’s where AI Convert comes in.

Upload your floor plan image or PDF, and AI maps out the walls, doors, and windows automatically, creating a fully editable floor plan inside RoomSketcher in just a few seconds.

Once converted, the project stays saved in your RoomSketcher account, making it easy to revisit and update later.

This works best when the original floor plan is reasonably clear and easy to read.

Option 2: Trace the plan yourself

You can also import your floor plan as a background image and trace over it manually.

This works best for older, hand-drawn, faded, or hard-to-read floor plans that may not convert cleanly with AI.

By tracing the layout yourself, you can rebuild the plan step by step while still using the original drawing as a reference.

Path B: You Have a House but No Floor Plan

Capture the space with LiDAR

If no floor plan exists yet, you’ll first need a way to capture the space.

For existing homes, using a LiDAR capture is usually the fastest and most convenient option.

Instead of manually measuring every wall, door, and window, LiDAR helps you quickly map out the layout as you walk through the property.

With FloorCapture, you can use an iPhone or iPad with LiDAR to walk through the home while the app captures measurements automatically.

AI then converts the capture into an editable digital floor plan in RoomSketcher.

No LiDAR device?

You can still create the floor plan yourself by drawing it manually.

Start by sketching the layout room by room and collecting measurements as you go.

Once you have the basics mapped out, open RoomSketcher and draw the floor plan digitally.

You can type exact measurements directly into the wall tool, add doors and windows as you draw, and adjust the layout anytime afterward.

This approach takes more time than FloorCapture, but it works well when you want to shape the layout as you go or experiment with different ideas.

Path C: You’re Designing a New Build

Designing a new build means creating the floor plan from scratch, rather than documenting an existing home.

Before you start drawing, check the local building and planning rules for your property. These may affect the size, height, placement, and layout of the home.

Common things to check include:

• Setbacks from property lines
• Maximum building height
• Site coverage limits
• Heritage restrictions
• Flood or bushfire zones

It’s also worth thinking about how the site itself should shape the layout. Consider sunlight, views, privacy, noise, and slope before deciding where rooms should go.

Once you have a rough idea, open the RoomSketcher app and start drawing digitally. Begin with the exterior walls, divide the layout into rooms, and add doors and windows as the design develops.

Because everything stays editable, you can test different layouts, move rooms around, and refine the floor plan as you go.

Once You Have Your Floor Plan: Test and Share It

Test the layout before you build

One of the biggest mistakes homeowners make is assuming empty rooms will feel spacious once furnished.

They often don’t.

Before finalizing anything, drag furniture from the RoomSketcher furniture library onto your floor plan.

This immediately reveals problems like:

• Hallways that are too narrow
• Dining areas without enough clearance
• Bedroom layouts that don’t fit properly
• Doors colliding with furniture
• Awkward walking paths

Then switch to Live 3D and walk through the layout.

Flat floor plans hide a surprising amount. A room that looks fine in 2D can suddenly feel cramped once you experience it in 3D.

Catching these problems early is much cheaper than fixing them later.

Start Your Floor Plan

RoomSketcher is free to start and gives you multiple ways to create a floor plan depending on your project.

• Have a floor plan image or PDF? Use AI Convert
• Want full control? Trace your own floor plan
• Have an iPhone or iPad with LiDAR? Use FloorCapture
• Starting from nothing? Draw from scratch

Create your RoomSketcher account and start planning your house today.