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Your house is already designed.
So is your extension.

Across the UK, millions of homes share the same designs.
We've already designed the perfect extension for yours.

Scroll to explore

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One idea. Millions of homes

The UK's housing stock is remarkably consistent. Terraced and Semi Detached homes follow recognisable patterns - shared footprints, shared proportions, shared potential. PDE turns that consistency into an advantage.

We're steps ahead. Now so are you.

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Each property type has a catalogue of designs consisting of back, side, wrap around, loft and porch extensions, all ready to be chosen from, waiting to transform your home. Each design can be left as is, or can be customised just as you need it. It's all up to you.

Mapped, and understood

The aim is to have all semi detached and terraced properties across the UK identified and mapped out, providing a clear understanding of the housing stock, view our preview below to understand what goes on behind the scenes

How we can help you

To understand more in depth who we are and how we can help you, select the option which best describes your position. 

Or view our catalogues directly below, where you will find our 30 House types and 100's of extension designs.

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