Is the home addition visualizer free?

You sign in with Google or e-mail — no card — and get 6 free credits, enough for 3 designs. Each design costs 2 credits. Free results carry a small genroom.io watermark; one-time credit packs remove it. There is no subscription.

Which additions can I try?

The “Add-on & extension” mode offers seven: Extra floor, Garage, Room extension, Covered porch, Sunroom, Carport and Covered patio. Anything else — a dormer, a wraparound porch, a flat-roof wing — you can describe in your own words.

Will the rest of my house change?

The mode keeps the existing house and the surroundings and builds the addition in the same materials. Where the addition joins the house, the model redraws that part, and on some photos the house shifts a little in the frame to make room — compare with the slider.

Can it design the floor plan of the second floor?

No. It shows how the house looks from outside with the new floor. For rooms inside, upload a floor plan on the floor plan page: it turns an existing plan into a furnished top view and room pictures.

Is this a drawing I can build from?

No. It is a visualization: the look, the size relative to the house and the materials. Structure, dimensions and permits need an architect or a builder — the picture helps you brief them.

How do I say where the addition goes?

Write it in the “What to add” field: “a garage on the right, at the end of the driveway” or “a one-room extension on the left with a flat roof”. Keep the free space visible in the photo — the model builds where it can see room for it.

What photo works best?

Daylight, the whole house in the frame, and the place for the addition visible: the side yard for a garage or wing, some sky above the roof for an extra floor. A phone photo from the street is fine.

Can architects and builders use it with clients?

Yes. Commercial use is allowed on every plan, Free included. Upload the client's house, show two or three options on the same photo and use them to agree on the direction before drawings.

AI home addition visualizer

See a second story, a garage or an extension on your own house

Upload one photo of your house and add an extra floor, an attached garage, a room extension, a covered porch or a sunroom. The addition is built in the materials and style of your house, and the rest of the photo stays as it was.

Add to my houseSee all additions

2 credits: per design
6 free credits: after sign-in, no card
Under a minute: per result

A one-story sage green bungalow on a wide lawn before the addition

Original

Same photo · one addition at a time

Stays as in your photo

The existing house
Siding and roof materials
Garden and driveway
Neighbours and sky
Camera angle

How it works

One photo, three steps

1
Photograph the whole house
A daytime photo with the whole house in the frame and the free space where the addition should go — the side yard, the driveway or the sky above the roof.
Add-on & extension
What to add (optional)
Extra floorGarageRoom extensionCovered porchSunroomCarportCovered patio
2
Pick “Add-on & extension” and what to add
The Studio opens with the “Add-on & extension” mode already chosen. Pick what to add, or describe it in your own words — where it goes and what it looks like.
After
Before
3
Compare and try the next one
Drag the before/after slider, then try another addition on the same photo. Each design costs 2 credits.

One house, eight additions

Every addition on the same house

All eight results were made in the GenRoom Studio from one photo with the “Add-on & extension” mode. Nothing else was edited.

Extra floor

A full second story on the same footprint, with matching siding, windows and roof.

Try on my house

Garage

An attached garage at the end of the driveway, under a roof that follows the house.

Try on my house

Room extension

A one-room wing on the side, in the same siding and window style.

Try on my house

Covered porch

A covered porch across the front, with posts and a railing.

Try on my house

Sunroom

A glass room on the side, for a bright dining or garden room.

Try on my house

Carport

An open carport on posts beside the house, roofed like the house.

Try on my house

Covered patio

A roofed patio on the side of the house, open on three sides.

Try on my house

Flat-roof extension (own words)

Your own words instead of a ready choice: what to add, where and how it looks.

Try on my house

Drag to compare

Different houses, different additions

A brick bungalow, a two-story house with a free side lot and a Swedish cottage: the addition joins the house, the street and the garden stay.

AfterBefore

Brick bungalowExtra floor

AfterBefore

Gravel by the sideAttached garage

AfterBefore

Red cottageRoom extension

AfterBefore

One and a half storiesFull second story

AfterBefore

Gravel by the sideCarport

AfterBefore

Red cottageGlass sunroom

Your own words

Say where it goes and what it looks like

The “What to add” field takes your own words too: the side of the house, the roof shape, the windows. People write things like “Make the house double story, very modern” — this one asked for a flat-roof room on the left.

“a one-storey room extension on the left side with a flat roof and large windows”

Try my own words

What it is — and what it is not

A picture of the outside, not a plan
You see the volume, the roof and the materials. The Studio does not draw a floor plan or a layout for the new rooms.
Not a construction drawing
No dimensions, structure or loads. Whether the house can take a second story is for an engineer to say.
Permits are yours to check
Setbacks, height limits and planning rules are not known to the model. Take the picture to your architect or council as a starting point.

AfterBefore

Here: the words above in the “What to add” field. The existing house kept its door, windows and siding.

Questions

Home addition visualizer FAQ

What the tool adds, what it keeps and what it costs.

Live support

Still unsure?

Ask us anything about the Studio — we read every message.

You sign in with Google or e-mail — no card — and get 6 free credits, enough for 3 designs. Each design costs 2 credits. Free results carry a small genroom.io watermark; one-time credit packs remove it. There is no subscription.
The “Add-on & extension” mode offers seven: Extra floor, Garage, Room extension, Covered porch, Sunroom, Carport and Covered patio. Anything else — a dormer, a wraparound porch, a flat-roof wing — you can describe in your own words.
The mode keeps the existing house and the surroundings and builds the addition in the same materials. Where the addition joins the house, the model redraws that part, and on some photos the house shifts a little in the frame to make room — compare with the slider.
No. It shows how the house looks from outside with the new floor. For rooms inside, upload a floor plan on the floor plan page: it turns an existing plan into a furnished top view and room pictures.
No. It is a visualization: the look, the size relative to the house and the materials. Structure, dimensions and permits need an architect or a builder — the picture helps you brief them.
Write it in the “What to add” field: “a garage on the right, at the end of the driveway” or “a one-room extension on the left with a flat roof”. Keep the free space visible in the photo — the model builds where it can see room for it.
Daylight, the whole house in the frame, and the place for the addition visible: the side yard for a garage or wing, some sky above the roof for an extra floor. A phone photo from the street is fine.
Yes. Commercial use is allowed on every plan, Free included. Upload the client's house, show two or three options on the same photo and use them to agree on the direction before drawings.

More tools for the outside of your house

The same photo can get new siding, a roof, a front door or a full makeover.

Read in the blog

Your house with an addition, in under a minute

Upload a photo of the whole house and try the first addition. 6 free credits after sign-in — that is 3 designs.

Add to my house

No card neededOne-time packs, no subscriptionCommercial use on every plan

See a second story, a garage or an extension on your own house

One photo, three steps

Photograph the whole house

Pick “Add-on & extension” and what to add

Compare and try the next one

Every addition on the same house

Extra floor

Garage

Room extension

Covered porch

Sunroom

Carport

Covered patio

Flat-roof extension (own words)

Different houses, different additions

Say where it goes and what it looks like

Home addition visualizer FAQ

Still unsure?

More tools for the outside of your house

AI facade design

AI exterior design

AI roof design

AI Siding Visualizer

Front Door & Window Visualizer

Floor Plan to 3D

Read in the blog

Your house with an addition, in under a minute