Recent iPhones and iPads carry a LiDAR scanner — the same depth sensor used for AR — and it's accurate enough to turn a two-minute walkthrough into a clean, measured floor plan. Here's the whole process, end to end.

An AI-generated floor plan with room areas, ceiling heights and measurements — An AI floor plan generated from a LiDAR scan — north-aligned, with room areas and measurements.

What you need

An iPhone or iPad with a LiDAR sensor. That's any Pro iPhone from the iPhone 12 Pro onward (Pro and Pro Max), and iPad Pro models from 2020. The non-Pro iPhones don't have LiDAR.
iOS 26 or later.
A scanning app. This guide uses FloorLens, which is free to scan, measure and export.

Step 1 — Scan the space

Open the app and start a scan. Hold the device up and walk slowly along the walls, keeping the sensor roughly 1–2 metres from surfaces. Take your time at corners, doorways and windows — those are the edges that define the plan. FloorLens shows live coverage feedback while you move, highlighting any areas that still need a better pass, so you get a clean capture the first time rather than discovering gaps later.

For a single room this takes under a minute; a whole apartment is usually a few minutes of unhurried walking.

Step 2 — Your floor plan and 3D scene are ready instantly

There's no separate "generate" step and no waiting. The moment the scan finishes you have both a clean, north-aligned floor plan and an editable 3D scene of the same space. FloorLens uses the device's compass so the drawing faces the real world, right down to magnetic north, and it already includes room areas, ceiling heights, door swings and window placements.

Measurements come for free, too: wall lengths, room areas, ceiling heights, and object dimensions and footprints are all computed automatically for every element — no tape measure, no manual dimension lines.

Step 3 — Review and edit — in either view

Give the result a quick review and tidy anything the scan missed. You can add, remove, move, rotate or resize walls and objects, and set a door's swing or sliding direction. The key thing: you can edit in either the floor plan or the 3D scene, and a change in one is reflected in the other — the two views stay in sync and never drift apart. A minute of cleanup makes the finished plan look professional. Add room names, notes and property details (address, price, bedrooms) so it's ready to hand to a client.

Step 4 — Export or share

You have two ways to get the plan out of the app:

Export a file. A polished PDF with the plan, measurements and property info, or the current view exported as JPG, PNG or SVG.
Share a web link. Upload the scan and you get a link plus a QR code. Whoever you send it to opens a fast, browser-based 3D viewer — dollhouse, floor-plan and first-person photo modes — with no app and no login, on a phone or a laptop.

The web share is the part clients love: instead of a flat PDF, they get an interactive 3D walkthrough in one tap. On the free plan you can keep one scan shared on the web at a time (it auto-deletes after 48 hours); paid plans keep more, for longer.

Tips for a clean scan

Scan in even lighting and open the blinds — LiDAR doesn't need light to measure, but it helps the photo textures.
Declutter a little; a clear floor and walls give tidier geometry.
Walk the full perimeter of each room rather than standing in the middle.
Face window walls straight on so openings are captured cleanly.
If coverage feedback flags a thin area, do a slow second pass over it.

How accurate is it?

iPhone LiDAR is typically accurate to within a few centimetres across a room — more than enough for listings, rental ads, space planning and renovation quotes. It isn't survey-grade for legal or construction sign-off, but for advertising and planning a home it's fast, repeatable and genuinely useful.

How to make a floor plan from an iPhone LiDAR scan