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Resi Architects in London
Resi Architects in London

Resi Architects in London

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Resi Architects in London
Resi Architects in London
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The Online Architectural Platform is the UK’s first online architectural service, combining technology and human engineering to provide affordable design and planning advice to anyone considering home extension, conversions or new builds. Aimed at homeowners, developers, contractors and estate agents, it’s 10 times cheaper and 10 times faster than traditional architects. Floor plans and 3D renders are produced within 72 hours and works alongside surveyors and contractors to support planning. The studio is based in London but due to the online nature of Resi, we can provide architectural assistance to not only the UK, but international homeowners. Our price range from £250 to £2000, depending on your choice of package.

How we work

We create efficient and accurate 2D floor plans, 3D renders and elevations in less time than a traditional architect, and at a fraction of the price. As an online architectural service, we rely on cutting edge technology in order to output drawings faster, which means cutting costs, not reducing quality. Our client-architect interaction is carried out over our handy Resi dashboard, which keeps all information in one place and avoids the need for endless emails, and we’ve carried this out on 750 residential building projects to date.

Our Bespoke Packages

Concept Package
Designed for those at the initial stages of planning a home improvement project, our Concept Package keeps things simple while keeping costs to a minimum. This package allows you to explore the feasibility of your project, and to create a design to suit your objective and budget. First we will chat with you on the phone to fully understand your requirements and what you are trying to achieve with the build. Then our UK based design team will work on designing your new space in 2D. Once ready, the plans will be sent to you for review and if any amendments are needed we will complete a free revision. All of this for just £250.

Planning Package
Designed for those renovating or extending their home and aiming to obtain planning permission, our Planning Package provides you with everything you need in order for this to be achieved. Once we have acquired the floor plans and measurements of your property, we begin with a telephone consultation to fully understand your requirements and what you are trying to achieve. This conversation will consist of a screen share where you and your architect will be interacting and going through various possible construction ideas and spacial iterations. By the end of the call, hopefully, you will both have decided on a final building conception. Our UK based team will then work on designing your new space in 2D. Once ready, the plans will be sent to you for review and if any amendments are needed we will complete a free revision. We then help you submit the necessary forms to secure planning permission or certify your permitted development. Our planning package starts from £720.

Planning and Survey
This package is designed for those who do not have access to existing floor plans. Clients receive everything contained in the Planning Package, but with an on site measured survey. This involves visiting the property and using cutting edge technology to accurately capture the existing dimensions and elevations of the property.

Building Regulations
Once you have finalised the design, the next step is to consider whether you wish to create a detailed design package. There are a number of advantages in this approach: Building regulation drawings can be used to secure approval from building control Technical specifications make it easy to get like for like construction quotations Detailed drawings allow the builder to understand what to construct We have helped over 700 people plan their building project and we use this knowledge to give you excellent advice at every stage. Our planning package starts from £775.

Get an instant quote

How We Started

After having difficult times with their own residential projects, Resi’s co-founders Alex and Jules were convinced that technology could be used in the architectural industry in order to create designs faster, and at a lower cost. This meant that architecture could become more accessible to anyone improving their home with a home extension, not just in London or the UK, but internationally. Using innovative technology and online resources, has created a more succinct and logical way to experience an architectural service. Across the whole of the UK, we have now successfully completed over 750 residential extensions, and we can work with you to help you understand what is possible with your project.

How much does an extension cost? Do i need planning permission? How long does it take to build an extension?

Contact our experts for some free advice!

  • 3D Rendering
  • Architectural drawings
  • Planning permission
  • New builds
  • Loft conversions
  • House extensions
  • Kitchen Design
  • Bathroom Design
  • Floor Plans
  • Space Planning
  • Extensions
  • Show all 11 services
Service areas
  • Across the UK
  • London
  • Manchester
  • Newcastle
  • Aberdeen
  • Leeds
  • Liverpool
  • Brighton
  • Bristol
  • Nottingham
  • Leicester
  • Hull
  • Cardiff
  • Derby
  • Sunderland
  • Warrington
  • Bradford
  • Watford
  • Burnley
  • Guilford
  • Show all 20 service areas
SE16 4EE London
United Kingdom


I'm currently dealing with Resi (order 4533) and 100% of their calls either commence late or do not happen at all. I booked with them because of how slick their site was and their Google reviews, but honestly, I wish I'd gone elsewhere. I'm too far into the process to jump ship, but am still considering cutting my losses and going with a more professional service. Main gripes: 1-They are not cheap or competitively priced. However, I proceeded as I want premium results. 2-No one at Resi knows how to tell the time. They'll schedule calls based on their schedules and not be able to make those same calls. e.g. I'm currently sat waiting for an 11am call to begin, except now at 11:10 Louice from Resi just phoned to say my designer is running late, and put the phone down. 3-The results are questionable. I've had the time to speak to other Resi customers now, and it's not all roses. There are extreme concerns and complaints by a few that I've been able to speak to. 4-It's a really confusing service. I've got 3 projects which they've quoted as one, and no one I speak to seems to be aware of the 3 separate projects occurring until I brief them. 5-There is no one responsible for your account/project. You will always speak to someone different. Overall I'm very disappointed so far, and wholeheartedly do not recommend Resi for anything. EDIT- Now at 11:15, they've just cancelled the call we had scheduled for the last 2 weeks. Unbelievable.
about 20 hours ago
Project date: October 2020
Houzz wouldn't even publish this review as it's a negative experience. So here it is. What should have been a couple of weeks work has now taken 6 solid months already and still going! We had the call at the beginning promising no later than 6 weeks and the build would start in 2 to 3 months’ time. We were given an invoice to pay immediately so that ‘there would be no delays in order for them to start the drawing immediately’.  We were told to hire drainage surveyor, structural engineer, party wall surveyor, which I sorted out immediately within a week of our call as we had 11 months left on making a start to the build and had agreed that Resi would get things done between 4 to 6 weeks.  They had everything they requested from me within the first week after our call so that I ‘do not cause delays’. Yet, I heard nothing back for an entire month. When I finally started chasing 2 months later, I quickly discovered it was impossible to speak with the designer. The few times I tried to call, I was always told they were not available. When I emailed and called again to complain, call would finally be set up, and then missed. They also refuse to lead the drawing and instead demanded that the Structural Engineer must draw the whole thing first, which started to look alarmingly incompetent. I told them the drawings must be produced by the end of month 3 for submission to the council. I received a draft finally after 3 month in stead of 6 weeks. Of course no discussions were made before then. So I got the new manhole cover right in front of the extension door, and a bunch of other mistakes through clear lacking of design considerations.  I was then informed that this was just the first draft and they could update with my feedback quickly, and together with some updated layouts which I drew out on cad for them while I waited for so long! The reality I waited for another month and nothing happened! Basically now it’s gone past 6 months and still on going, with Thames Water repeatedly disapproving their drainage proposal in the last 6 weeks. And let me be clear, the remarks from TW were not even difficult. They told Resi to straight a pipe bend and add a check point on a pipe coming from our next door neighbour to the shared sewer located in our garden. It took them two weeks to respond after Thames Water started chasing them as TW wanted to close the case. The updates were done after 3 weeks with the added points, and one pipe straightened, but now another one bent, since obviously they used a previous version of the drawing when they started doing the revision, and Thames water and I are still waiting. To summarise: 1. They only really talk to you when they want you to pay. 2. There will be minimal discussion on the practically of their drawing when it comes to construction and living. Your needs are not really considered. 3. They are completely unprofessional dragging on a very basic residential building regulations drawing from a few weeks to 6 months.  Instead of starting the build with a comfortable 8 months lead time to the planning approval expiry date, I now have maximum 5 months left while it probably will take RESI another few more weeks for the revision required by Thames Water! They lost me 4 months already with unbelievable amount of frustration through the wait and lack of communication. And there is a lock down to keep everyone safe. The council told me unfortunately I would have to reapply if I can not start the foundation work with TW’s approval and within the Planning Approval Date.  I phone them first in Aug 2019, and now it’s 1st April 2020. If I had known, I should have demanded my money back with compensation after 6 weeks’s wait instead of month 7 and still waiting, possibly  now in vain! In my opinion, company like this is no different to fraudsters. Their professional credentials should be reviewed and possibly struck off or only re-awarded after re-training!
7 months ago
Project date: September 2019
Personally wouldn't touch with a barge pole again. Resi prides itself on being a fixed price practice, that can offer competitive price due to being and online architects. The flash website and friendly sales person is all very convincing at the start. However, as you get into the project you get hit with surprise extra charges, sizeable ones at that. They are also incredibly slow, virtually impossible to get hold of and the person you speak to isn't the person that prepares your drawings. Rather disorganised and never fixed the numerous errors displayed in their work.
8 months ago
Project date: March 2020
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