FREE FLOOR & SITE PLANNER

Plan your space.
See it in 3D.

Explore an extension or an additional dwelling. Draw the walls, arrange the rooms and see how your ideas fit together.

Start planning for free

No sign-up Saved on your device

A two-bedroom idea

PlanWot 3D cutaway showing bedrooms, a kitchen and living area in a fictional sample dwelling

Actual PlanWot previewFictional sample · concept only

Metres. Millimetres. Real scale. Plan, place, adjust. Your plans stay in your browser.

FROM OUTLINE TO INTERIOR

Work through the details.
Keep the whole picture.

One workspace for the building, the rooms and the space around them. Switch between plan and 3D as you make changes.

Draw with real dimensions

Edit wall lengths, move corners and join internal walls. Your plan stays to scale as the layout changes.

Find room for the everyday

Place beds, sofas, kitchen cabinets and bathroom fittings. Resize them to see what actually fits.

Walk around the idea in 3D

Switch from plan to perspective. Open the roof with cutaway views to see the layout inside.

Start with your NZ site

Look up an NZ address for LINZ aerial imagery, roof outlines and approximate property boundaries. Adjust the walls and eaves to match.

Plan beyond the walls

Arrange decking, fences, gates and driveways. Add a car to help judge the space around a building.

Bring your plan to the conversation

Export PDF drawings, DXF linework and a 3D model to share your concept with a designer or builder.

The PlanWot editor with wall controls, precise dimensions and a furnished concept floor plan

One plan. Connected views.

MADE FOR TRYING THINGS

Move a wall.
Try another layout.

Start with a simple footprint or import a plan you already have. Place furnishings where you need them, edit exact sizes and undo a change when it doesn’t work.

Edit either building on the site
Snap walls and furnishings into place
Keep multiple projects on your device

Explore a furnished sample

NO INSTALL. NO ACCOUNT.

A few steps to your first plan.

Start your project

Choose an additional dwelling or an existing-house extension. Use a simple starting footprint, a sample or a saved JSON plan.

Make the space your own

Adjust walls and dimensions. Add furniture, fittings and finishes, then check the result in 3D.

Save it. Share the idea.

Your project saves in this browser. Export a JSON backup and create drawings to discuss with your designer or builder.

LOCAL BY DESIGN

Your project. Your browser.

No account and no project uploads. Plans and imported images are stored on this device. NZ address lookup sends your search or site coordinates through Cloudflare to LINZ; your edited plan stays in the browser. Export a JSON backup to keep a separate copy or move to another browser.

Browser storage can be cleared or removed. Keep backups of plans you want to retain.

No cloud project storage

BEFORE YOU START

A few useful answers.

Free to use, including the current import and export tools.

Do I need an account?

No. Open the planner and start a plan. There is no sign-up or installation.

Where are my projects saved?

Projects are saved in this browser on this device using browser storage. They are not uploaded to a PlanWot project server or synced between devices. Export a JSON backup regularly: clearing site data, private browsing or browser storage removal can erase local plans.

Can I use a plan on another computer?

Yes. Export the project as JSON, then import that file in PlanWot on the other computer. Use the portable JSON export to include uploaded images.

Can I start with my existing house?

Yes. Start an extension project and edit the existing house outline, interior walls and furnishings. You can upload and align a background image, or import an existing PlanWot project. You can also start from a New Zealand address using LINZ imagery and outlines when the address service is available.

Does this replace an architect or designer?

PlanWot makes concept plans, not consent or construction drawings. Dimensions, boundaries, heights, sunlight settings and building rules need independent checking. Use the exports to explain your ideas to a qualified designer.

Does it work on a phone?

You can open PlanWot on a phone, but a larger screen with a mouse is recommended for precise editing. The 3D view requires a browser with WebGL support.

A PLAN YOU CAN BUILD ON

Got a layout in mind?
Give it some dimensions.

Open the free planner

No sign-up. Start with a sample if you’d like a look around.

Plan your space.See it in 3D.

Work through the details.Keep the whole picture.