Calendar delay

...It’s been a really busy time for us. To make sure that we’re able to provide the best possible experience, there is currently a delay of 3-4 weeks to start a project. We are still providing free project advice.

Home > Advice Centre >

Have a question?

Have a question?

We've completed close to 1000 projects across the UK. If you have a question we probably have the answer.

Great architecture
for the nation’s homes

We make it easier than ever to access
quality design.

Like traditional architecture practices, we have an incredible team of designers ready to prepare drawings, secure planning permission, and handle building regulations - to name just a few of our services. But this is just the start!

Our unique platform lets you manage everything online. You can collect documents, review designs, and even share your favourite Pinterest boards. All the while being able to message our team when you need them most.

No matter the size of your project, or where you’re starting out, Resi has everything you need to unlock your home’s potential.


Book a Free Architectural Advice Call

We offer free 30 minute consultations to help you with your project.
Select a date to view availability

What Resi does...

Everything you need to build your happy space

Home design

Home design

Our skilled designers work with you to produce architectural drawings of your future home.
Planning applications

Planning applications

We’ll package up your designs and act as your planning agent to get approval from your local authority.
Building regulations

Building regulations

Before you get constructing, we’ll produce technical drawings so your home is safe and legal going forward.
Supplier connect

Supplier connect

We introduce you to the best professionals in your area, meaning you’re in safe hands for the rest of your project.

Tools & Calculators



Use our free valuation calculator to estimate the value an extension could add to your property.

Read more


Simply enter your project details, tell us what you need and we offer a free consultation to help get you started

Read more


Get a free construction cost estimate to get an idea of how much your project could cost to complete.

Read more

Frequently Asked Questions

Why would I use Resi?

What does Resi offer?

Why don't I just use a local architect?

Can I trust you? Are you qualified?

What information do I need to provide for you to start work on my extension?

Can Resi produce a variety of options for my extension?

We are proud to employ architects registered with the Architects Registration Board and were awarded the mark for The Mayor's Good Work Standard for fair pay & conditions, wellbeing, skills, progression, diversity and recruitment.

Phone: +44203 868 9453 | Email:

Resi Design Ltd. trading as 'Resi' | Company No: 10471125