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We’re Britain’s #1 architectural practice for all-things extending

Be gosh-darn efficient on design + planning costs

Get build-ready with as minimal hassle as possible

Navigate the labyrinth that is UK planning

Organise your entire project online

With 7,000+ projects under our belt

Rear extensions Side return extensions Wraparound extensions Loft extensions

No architects
come for tea

You’re busy and you live in Britain – the last thing you want is a stranger coming round for meandering conversations about indecipherable floor plans.

We visit once, quickly, to create a lifelike digital scan of your property. After that, everything is handled online with a minimum of fuss, so you can extend easy.

 

“You’re approved, champ”

We think we said these words – or variants of them – more times than anyone else in Britain. That’s because at Resi we’ve made it something of a side-quest to rescue in-house planning officers from local councils across the country.

We then set them free to do what they do best: play by the rulebook. And that’s why we have a 91% planning approval rating.

 

Builder rolodex,
not builder roulette

You hear stories of people resorting to urban safaris around their neighbourhood to find signs from tradespeople who look reputable.

We’ve got a better way, and have built a list of vetted builders who’ve done projects in your area. If you want them to – they’ll submit a tender for your project so you can compare and contrast.

 

Or just design it yourself

Some folks don’t want the full ‘bells and whistles’ experience. With Resi Ready, you do the designs yourself on our whizz bang tech configurator. It’s the simplest way to get a spiffy new home extension.

Cream of the crop

We've got more 5 star reviews than anyone else, by a country mile. That's why we're rated No. 1 in the Architect category on Trustpilot.

The team at Resi have been so unbelievably help...

The team at Resi have been so unbelievably help...

Annie • NW7

Ground Floor - Wraparound

took all the work and kept me in touch…

took all the work and kept me in touch all the ...

Roger • NW5

Ground Floor - Internal Alteration

I found Resi personnel very helpful

I found Resi personnel very helpful. Their meth...

Jacqueline • CM3

Ground Floor - Rear

Resi have been amazing from the start

Resi have been amazing from the start, the comm...

Obi • BR5

Garden - Annex

It is a 10 from me! :)

It is a 10 from me! :) I found Resi through onl...

Yiming • W14

Custom - Custom

Working with Resi has been such a pleasure from...

Working with Resi has been such a pleasure from...

Saqib • SL6

Ground Floor - Rear

Outstanding Service

Shabnam from the Resi finance team is exception...

Joie • MK10

Ground Floor - Rear

Our experience with Resi

Our experience with Resi was one of the best cu...

Abu • DA8

Ground Floor - Rear

Excellent

Really good and easy to use online platform

Richard • TW11

Loft - L Shaped Dormer

Delighted home owner

Fantastic service would highly recommend this e...

Lyn • BR6

Ground Floor - Rear

Really good service,

Really good service, we dealt with multiple at ...

Nick • NW10

Ground Floor - Side Infill

Excellent, friendly service

Jack at Resi was brilliant at bringing together...

Oliver • W4

Loft - L Shaped Dormer

Book a free architectural advice call

We’re always up for 30 minute phone consultations to help you with your project.

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