ChatGPT House Design: Exterior and Paint Ideas From a Photo
ChatGPT can redraw a photo of your house from a written prompt. HomeGPT is built for that one task: no prompt to write, two options from one photo, and a list of what each would take. Here is what each does well, and a fair way to try both on your own photo.
HomeGPT is an independent tool. It is not affiliated with, endorsed by or part of OpenAI or ChatGPT.
ChatGPT or a purpose-built tool: how each works
Both start from a photo of your own house. The difference is what you do next, and what you get back.
ChatGPT: you write the brief
Upload the photo and describe the change in words. The more exactly you say what to change and what to keep, the closer the picture comes. Each new idea is another message.
HomeGPT: you pick the job
Upload the photo and pick what you are changing: a whole new look, paint, siding, the patio, deck and fence, the garden or a room. There is no prompt to write; a short note is optional.
What comes back
ChatGPT returns a picture, and text if you ask for it. HomeGPT returns two options on your photo, each with a list of its changes, rough quantities and typical local prices.
Can ChatGPT design a house exterior from a photo?
Yes. Upload a photo, describe the change and ChatGPT returns an edited picture. It is a general assistant, so it will try any idea you can put into words, and it can also explain materials, write a plan or draft a message to a contractor in the same chat. For house design the work is in the prompt: it changes what you ask for, and it keeps what you tell it to keep.
How to ask ChatGPT for a house design
- Say what to change and nothing else: "repaint the siding a warm white and the trim black".
- Say what must stay: "keep every window, door, the roof and the camera angle exactly as in the photo".
- Ask for one change at a time. A long list of changes in one prompt is where details go missing.
- Ask for a second version in a different direction, so you have something to compare.
- Ask it to list the materials and colors it used, then check any paint name on the brand’s own site.
- Compare the result with your photo before you trust it: count the windows and check the roofline.
OpenAI sets what each ChatGPT plan includes and changes it over time. Check ChatGPT's own pricing page for today's image limits and prices.
What a purpose-built tool adds
Not a better picture: HomeGPT's pictures are drawn by a general-purpose image model too. What it adds is the work around the picture.
No prompt to write
You pick a job and a direction, such as light and fresh or dark and classic. A short note is optional, for anything specific like "keep the red door".
The photo is read first
Before anything is drawn, HomeGPT works out what kind of space is in the photo and which jobs fit it, and suggests them.
Two options from one photo
Every design draws option A and option B on the same photo, so you compare two directions without asking twice.
A line-item list
Each change is an item: its material or paint, a rough quantity with what it was measured from, and a typical local price. Paint items carry a real paint name and brand code.
A list of what is kept
Each design says what it keeps, such as the windows, the roofline and the porch, so you know what to check against your photo.
Color swaps and picks
Tap an item to swap its color, or untick items and redraw with only your picks. Each design includes 1 of these for free.
A saved project
Keep the option you like in a project, add other spaces of the same home and come back to it. A free account keeps it across devices.
A contractor brief
Turn the plan into one brief with every item numbered and send it to contractors, so their quotes cover the same work.
What it does not do: HomeGPT works only on its set jobs, each added after it passed blind tests on real photos, so it will not attempt an addition or a new roof. Like any AI picture, a result can alter a detail it was asked to keep; compare it with your photo. Quantities and prices are rough ranges from a photo, not a quote.
HomeGPT and ChatGPT for house design, side by side
How each works, in words. We have not run a controlled head-to-head test of picture quality, so there is no score here.
| For house design | HomeGPT | ChatGPT |
|---|---|---|
| How you ask | Pick a job and a direction; a note is optional | Write a prompt for each change |
| Starts from your own photo | Yes | Yes, when you upload one |
| Options per request | Two, side by side | Typically one picture; ask again for another |
| List of changes | Every change as a line item | Only if you ask, as text it writes |
| Quantities and prices | A rough quantity and a typical local price per item | An estimate in text if you ask; check it locally |
| Paint names | Real paints with brand codes, checked against a catalog | May suggest names; verify them with the brand |
| What is kept | A kept list with every design | Whatever your prompt asks it to keep |
| Changing one color | Tap the item and swap it | Ask in a follow-up message |
| Saving and sharing | A project, a plan and a contractor brief | Your chat history and the image |
| Scope | A set list of house, garden and room jobs | Anything you can describe |
| Picture quality | Not compared here: judge both on your own photo | Not compared here: judge both on your own photo |
| Price | 2 free designs a day; optional plans | Free and paid plans; check OpenAI for current limits and prices |
ChatGPT details are general and change often: check OpenAI directly for current features, limits and pricing (ChatGPT pricing). HomeGPT's plans and prices are on the pricing page.
A fair test on your own photo
Do not take our word for it, or anyone's. Run the same job through both tools and judge the results yourself:
- Use the same straight-on, daylight photo in both tools, with the whole area you want to change in the frame.
- Ask both for the same change: the same color direction or style, and nothing else.
- Check that the windows, doors, roofline and anything you wanted kept are where they were.
- Zoom in on the detail: siding boards, trim edges, paving and planting.
- Note the date and the plan you were on, how many results you got and how long each took you, prompts included.
Which should you use?
Use ChatGPT if...
- Your idea does not fit a set job: an addition, a new roof shape, an unusual material.
- You like steering in words and do not mind several rounds of prompts.
- You want to talk the project through as well as see a picture.
- You already pay for ChatGPT and want to use what you have.
Use HomeGPT if...
- You would rather pick a job than write and rewrite a prompt.
- You want two options to compare from one upload.
- You want to know what a design would take: materials, rough quantities and typical local prices.
- You want real paint names and codes on a paint design.
- You want a plan and a brief to send to contractors, not just a picture.
House design jobs you can start without a prompt
- AI exterior design: a whole new look for the front of the house in one style.
- AI paint visualizer: new wall and trim colors with real paint names, or start from a whole scheme in the house color visualizer.
- Siding visualizer: two different wall materials on your own house.
- AI garden design and AI patio design: planting, paving, decking and fences.
- AI room makeover: a new look for a living room or bedroom.
Plan this project
Everything for this project in one place: preview it with AI, estimate the materials, then read what it costs.
Visualize with AI
Preview the idea on a photo of your own home.
Plan and estimate
Turn the concept into material quantities.
Read before you build
Real 2026 price ranges and ideas.
ChatGPT house design FAQ
Comparing other AI home design tools?
See how HomeGPT stacks up against the other tools people search for, or read the comparison of what each free tier actually includes.
Try it on your own house photo
One photo, no prompt, two options and a list of what each would take. Free to start, no sign-up.
Start a house design