Skillion roof design

Skillion Roof Design: See a Skillion Roof on Your Home

A skillion roof is a single flat roof plane that slopes in one direction, high on one side and low on the other. It is also called a shed roof or mono-pitch roof, and it is a favourite of modern houses in Australia, where many people search for skillion roof designs before they build or re-roof. This AI skillion roof design tool starts from a picture: upload a photo of your house or block, a sketch or a clay model, and ArchitecturesAI renders it in the same view; then describe the slope, the metal roofing and the high windows in a sentence. The result is an idea picture of the outside. It is not a roof plan, a structural design or a quote.

Upload your house photo or sketch

Sign in with Google or email to render. New accounts get 2 free renders (watermarked); free renders are not available in India on this site.

A plain single-storey cream brick house with a hipped roof in red concrete tiles, white windows, a front door, a concrete driveway and a lawn — An AI-generated pair made with our own image model. The "before" is an AI-drawn stand-in for a photo of a brick house with a hipped roof, not a real house. Edit prompt used: "Change ONLY the roof into a skillion roof: remove the hipped roof and put one single flat sloping roof plane over the whole house, rising in a straight line from the left wall up to the right wall, dark grey corrugated metal with a thin fascia, the right side wall becomes taller to meet the high edge. Keep the front brick wall, the windows, the door, the driveway, the lawn and the camera angle exactly the same." What followed it: the hipped tile roof is gone and one dark grey metal roof plane slopes up from left to right with a thin fascia; the front brick wall, the windows, the door, the driveway and the lawn stayed. What differs from the prompt: the high edge ends in a tall dark clad wall on the right instead of a taller brick wall, and the slope is steeper than most skillion roofs. We ran this one twice: the first run kept a hipped roof and only added a raised strip of windows, so we reworded the prompt and ran it again on the same "before". The pair shown is the second run.

The same brick house with a single dark grey corrugated metal roof rising from the left to a tall dark clad wall on the right, with the same windows, door, driveway and lawn — An AI-generated pair made with our own image model. The "before" is an AI-drawn stand-in for a photo of a brick house with a hipped roof, not a real house. Edit prompt used: "Change ONLY the roof into a skillion roof: remove the hipped roof and put one single flat sloping roof plane over the whole house, rising in a straight line from the left wall up to the right wall, dark grey corrugated metal with a thin fascia, the right side wall becomes taller to meet the high edge. Keep the front brick wall, the windows, the door, the driveway, the lawn and the camera angle exactly the same." What followed it: the hipped tile roof is gone and one dark grey metal roof plane slopes up from left to right with a thin fascia; the front brick wall, the windows, the door, the driveway and the lawn stayed. What differs from the prompt: the high edge ends in a tall dark clad wall on the right instead of a taller brick wall, and the slope is steeper than most skillion roofs. We ran this one twice: the first run kept a hipped roof and only added a raised strip of windows, so we reworded the prompt and ran it again on the same "before". The pair shown is the second run.

What a skillion roof is

Australian builders and design guides such as Habitus Living, Carlisle Homes and Brighton Homes describe the skillion roof like this:

One flat roof plane at a single pitch, often low (around 5 to 15 degrees), higher on one wall than the other.
Also called a shed roof or a mono-pitch roof.
The tall wall is the place for high windows (clerestories) that bring in light; facing it north in Australia lets in winter sun.
Two skillions can step past each other or meet in a V, which is the butterfly roof.
It is usually finished in metal sheeting, and the gutter runs along the low side.

How to try a skillion roof design with ArchitecturesAI

In the editor above, the mode is Render Architecture, the type is Residential and the style is Modern. This mode has no prompt box: you start from an image.
Under Select Image, upload a JPG or PNG: a daylight photo of your house taken from the street, with the whole roof in view, or a sketch, a clay model or a screenshot from your 3D software.
Click Generate. Free accounts can only use Low quality (Medium and High are marked PRO). Sign in with Google or email when asked.
To steer the result, click Edit Image on it (the box is called Edit Instructions) or use Custom Action, and describe the direction of the slope, the roofing, the high windows and the walls and what must stay the same. Each edit is another render and uses credits. Run it a few times, since every result differs.
The three examples below ran directly on our image model with the written instructions shown. They did not go through the editor above, so your own results will differ.

Upload your house photo or sketch

A skillion roof on an existing house

Swapping a hipped tile roof for a skillion is a big change, and the model took two runs to do it. The caption notes where the result differs.

A skillion home from a sketch or on an empty block

If you are building new, start from a side-view sketch or a photo of the block. Both are second runs; the captions say what changed.

A black pencil side-view sketch of a modern single-storey house with two stepped sloping roofs, a tall window wall on the high side, a door and a deck — Both images are AI-generated with our own image model. The sketch is an AI-drawn stand-in for a hand sketch, not a real drawing. Edit prompt used: "Turn this line sketch into a realistic daylight photo of the same house in Australia: a light grey metal skillion roof, white brick walls, spotted gum timber cladding, black window frames, a timber deck and native plants, blue sky. Keep the house shape, the single sloping roof, the windows, the deck and the camera angle exactly the same." What followed it: light grey metal skillion roofs, white brick walls, timber cladding, black window frames, a timber deck and native style plants; the house shape, the sloping roofs, the windows and the deck stayed as drawn. What differs from the prompt: the drawing has two stepped skillion roofs, not one, and the render kept both. This is our second attempt: the first sketch came out with gable roofs instead of skillion roofs, so we made a new "before" and ran it again. The pair shown is the second run.

A photo-like render of the same house with two light grey metal skillion roofs, white brick walls, a tall black framed window wall, a timber panel, a timber deck and agave plants under a blue sky — Both images are AI-generated with our own image model. The sketch is an AI-drawn stand-in for a hand sketch, not a real drawing. Edit prompt used: "Turn this line sketch into a realistic daylight photo of the same house in Australia: a light grey metal skillion roof, white brick walls, spotted gum timber cladding, black window frames, a timber deck and native plants, blue sky. Keep the house shape, the single sloping roof, the windows, the deck and the camera angle exactly the same." What followed it: light grey metal skillion roofs, white brick walls, timber cladding, black window frames, a timber deck and native style plants; the house shape, the sloping roofs, the windows and the deck stayed as drawn. What differs from the prompt: the drawing has two stepped skillion roofs, not one, and the render kept both. This is our second attempt: the first sketch came out with gable roofs instead of skillion roofs, so we made a new "before" and ran it again. The pair shown is the second run.

An empty flat block of dry grass with a concrete path, a grey fence at the back and red brick houses on both sides — An AI-generated pair made with our own image model. The "before" is an AI-drawn stand-in for a photo of an empty suburban block, not a real site. Edit prompt used: "Build a new single-storey modern house on this block with a skillion roof seen from the side: one flat roof plane rising in a straight line from a low back wall on the right to a tall front wall on the left, no ridge and no gable, light grey metal, white render and charcoal cladding, a tall window wall under the high side. Keep the neighbouring houses, the footpath, the street and the camera angle exactly the same." What followed it: one light grey metal roof plane falling from a high left side to a low right side with no ridge and no gable, white render walls; the neighbouring houses, the path and the street side stayed. What differs from the prompt: the high side is a tall clad box, the slope covers only the lower part of the house, and there is one narrow window instead of a tall window wall. This is our second attempt: the first house on this block came out with gable roofs, so we made a new "before" and ran it again. The pair shown is the second run.

The same block with a new single-storey white rendered house under a light grey metal roof sloping down to the right from a tall light grey clad section on the left with one tall narrow window — An AI-generated pair made with our own image model. The "before" is an AI-drawn stand-in for a photo of an empty suburban block, not a real site. Edit prompt used: "Build a new single-storey modern house on this block with a skillion roof seen from the side: one flat roof plane rising in a straight line from a low back wall on the right to a tall front wall on the left, no ridge and no gable, light grey metal, white render and charcoal cladding, a tall window wall under the high side. Keep the neighbouring houses, the footpath, the street and the camera angle exactly the same." What followed it: one light grey metal roof plane falling from a high left side to a low right side with no ridge and no gable, white render walls; the neighbouring houses, the path and the street side stayed. What differs from the prompt: the high side is a tall clad box, the slope covers only the lower part of the house, and there is one narrow window instead of a tall window wall. This is our second attempt: the first house on this block came out with gable roofs, so we made a new "before" and ran it again. The pair shown is the second run.

What the AI keeps and what it may change

Usually kept: the camera angle, the front walls, the neighbours and the setting.
Often different from what you asked: how steep the slope is, where the high side ends and the size of the high windows.
Hard for the model: the first runs often fall back to gable or hipped roofs, so run it a few times.
Never produced: floor plans, structure, cost estimates or approval drawings.

Comparing modern roof shapes?

The flat roof house page covers flat roofs, the clerestory roof page shows high windows under raised roofs, and the gable and hip roof pages cover pitched roofs.

Free tier and plans

You need a free account to render. New accounts get 2 free renders, and free renders carry a watermark. In India this site does not include free renders, so a paid plan is needed there. Weekly, monthly and yearly plans for more renders without the watermark are on the pricing page.

The house, the sketch and the block on this page are AI-drawn stand-ins, not real. Each example was run directly on the model, not through the tool above.

Frequently asked questions

What is a skillion roof?

A single flat roof plane that slopes in one direction, high on one side of the house and low on the other. It is also called a shed or mono-pitch roof.

Can I see a skillion roof on my existing house?

Yes, as an idea picture. Upload a street photo, render it, then use Edit Image to ask for one sloping roof and say which side is high. In our test the first run kept the old roof, so try a few runs.

Is there a text box in the editor?

The prompt box exists only in Architecture Generator mode. The editor above opens in Render Architecture, where you upload an image and change the result with Edit Image (Edit Instructions) or Custom Action.

Is it free to try?

Yes. After you sign in, a new account gets 2 free renders with a watermark, in Low quality. In India this site does not include free renders. Paid weekly, monthly and yearly plans are listed on the pricing page.

See a skillion roof on your home

Upload a photo of your house, your block or your sketch, compare a few skillion versions, and take the best one to your builder. Your first 2 renders on a free account are on us.

Upload your house photo or sketch