Your house, drawn live

Every change redraws it. Green is what you can build without asking. Amber needs notice. Red needs permission.

Start from

Existing Permitted Prior approval Needs permission

Permitted development

…

1What are you building?

2What kind of house?

3How big?

4Where are you?

Want to set the exact depth, height, dormer size or boundary distance?

What are you building?

The house

What kind of house is it?

How many storeys is the house?

Rear extension

Depth from the original rear wall 3.0 m

Height to the top 3.00 m

How wide is the extension?

How tall is the extension?

Loft conversion

What kind of loft conversion?

Dormer width 4.8 m

Dormer projection into the roof 3.0 m

0 m³Volume allowance

The site

Where in the UK?

Garden depth behind the house 12.0 m

0% of the garden built on50% limit

Your results

See your planning verdict and cost

Your drawing is live above. Enter your email and your verdict and cost appear right here, straight away. We will also email you a copy to keep.

Results on screen instantly. One email with the report, no sales calls.

Verdict

Permitted development

You can build this without asking the council for permission.

Likely cost…

See the full cost breakdown → Get this as a report ↓

What this means

Your next steps

Check your street. Article 4 directions and conservation areas can remove the rights above. Run Street Check for your postcode.
Get it drawn. Send a photo of your house and we sketch the concept over it, free. Free feasibility sketch.
Talk it through. Twenty minutes with a planner, no pitch. Book a free call.

Have this checked properly

This is a model, not a decision. Councils interpret these rules differently and an Article 4 direction can remove them entirely. We will check your actual address and tell you where you stand.

Indicative only. Based on the Town and Country Planning (General Permitted Development) (England) Order 2015 as amended. Not a lawful development certificate.