Thinking of extending?

We offer free honest advice to help you get started with your home improvements.

The Online Architectural Platform

We work online, but we're not robots

From extensions to refurbishments, we're making it easy to remodel your home. Our experienced team use technology to provide bespoke 2D floor plans, 3D renders and elevations.

Apply for planning permission, sell your house or simply bring your vision to life. No hidden costs, no extra fees. Just high-quality drawings.


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.

Book a Free Architectural Advice Call

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

Tools & Calculators



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

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

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

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Frequently Asked Questions

Why would I use Resi?

We recommend using our services if you’re looking at any home design projects, such as: conversion, extension, a major renovation, or new build.

Having an architect on board has a number of benefits.

  1. Better design
  2. Better utilisation of space
  3. Increased chance of planning approval
  4. More protection from bad practises

To name just a few!

Every year thousands of homeowners face disaster from the unregulated practises, misleading advice, hidden third parties, and cowboy contractors. Only architects, held to a strict code of practise, can provide great, safe design. Unfortunately, many people are put off from architects because of its elitist reputation, confusing processes, and endless jargon.

At Resi, we keep things simple. Our transparent prices mean you’re never sucker punched by hidden fees, while our dashboard keeps you in complete control of your project throughout. You get all this while still getting the great expertise only a team of architects can bring to a project.

What does Resi offer?

Resi brings together all the architectural services you’ll need to get ready to build.

These include…

  1. Finance
  2. Measured surveys
  3. Home design
  4. 3D models and interactive walkthroughs
  5. Planning submission
  6. Party wall surveys
  7. Structural engineering
  8. Building regulations

Plus our connect service will put you in touch with the best local contractors and suppliers in your area, so you can move into the construction phase in a safe pair of hands.

We’re the perfect starting point for any homeowner looking to dramatically transform their property. Taking you step by step through all the nitty gritty of planning, while still allowing you the freedom to design a space perfectly suited to your home’s needs.

All this is facilitated by our online platform, which allows you to manage everything in one easy to use place. You’ll be able to submit your home details, view perspective designs, and chat to your architect - all from the from comfort of your own home.

Put simply: Resi offers all the benefits of architecture, with none of the headaches.

Why don't I just use a local architect?

There are many ways in which Resi stands out from the crowd, especially when compared to your standard local architect. Here’s just some of the ways we’re a cut above the rest…

Team size

Many local architectural firms are made up of just one or two designers, meaning they’re often at risk of spiralling work loads, should one project run into any trouble. This means you’re own home could be subject to delays and missed deadlines.

At Resi, we have over forty designers, surveyors, and technicians on board to help make sure you get the personal care you need. You’re assigned designer also then enjoys having a supportive team by their side, meaning you benefit from the experience only dozens of experts can provide.


When it comes to your home, you want someone who has been there and done that. This means hiring an architect with a large body of previous work. While local architects typical only take on around 10-20 projects a year, at Resi we’ve handled over 2000. So we know the ins and outs of planning, and Britain’s unique housing stock.


One of the things we hear most from prospective customers is 'if I go with a local architect, they’ll be there for me more'.

And it’s true, your local architect will come to your house and meet over tea in your kitchen. But what comes after that? There will be missed calls, weeks in between your next meeting, and when a new customer pops up, their attention can quickly become divided.

Our online dashboard allows our customers to communicate with their architect whenever they need us - thanks to our messaging feature. Not only that, we’re able to skip delayed meetings and share results in record time by walking customers through their projects with our screen-share. Though we are able to meet our customers face to face, our online platform means those customers who want a faster service can start seeing results the moment they click ‘confirm’.

Can I trust you? Are you qualified?

Although we’re online, we’re not robots, and you’ll be speaking with us directly from the moment you make an enquiry. We also offer an onsite measured survey/consultation service, if this is preferred. 

We’ve got qualifications, expertise and a long track record of happy customers. We have a number of ARB and RIBA registered architects working at Resi, along with architectural technologists and surveyors, so your project is in safe hands.

Collectively we've completed over 2000 residential extensions and renovations across the whole of the UK. You can learn more about our founders here.

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

As soon as you sign up to Resi we will walk you through our easy-to-follow process.

We’ll ask you for:

  1. Your name, contact details and the address of the property in question
  2. Basic information about the property
  3. Your preferred style, estimated budget and a brief description of what you are looking to achieve
  4. Your expectations on timings
  5. Uploads of floor plans, inspiration or existing photos of the property (all optional)

We will always let you know if we require further information before we start drawing.

Can Resi produce a variety of options for my extension?


The majority of our clients want to see the simplest, quickest and most cost effective solution for creating more space in their chosen area of their home. However, we are also able to produce what we refer to as the 'art of the possible'; taking you from simple to grand and everything in between. 

Just mention that you would like us to think boldly about your space when you discuss your extension during your initial consultation. 

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.


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.

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