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Frequently Asked Questions

Straightforward answers to some of the most common questions we hear.

Why would I use Resi?

There are plenty of reasons to use Resi to plan your next building project:

  1. If you want your home extension or conversion plans drawn up
  2. If you need clear guidance to navigate the planning permission/permitted development application process
  3. If you’d like to explore the potential for extending your own property, or a property you are interested in purchasing
  4. If you want to understand the costs associated with extending
  5. If you need reassurance around the value you could add to your home
  6. If you prefer to clearly visualise the end result before you start writing checks
  7. If you are thinking of buying a home and want to know how it could develop as your family grows
  8. If you want to stand out in a crowded housing market by demonstrating the potential of the home you’re selling
  9. If you need something concrete to present to contractors for an initial costing
  10. If you want an affordable, high-quality alternative to traditional architects

What does Resi offer?

Our bespoke packages include 2D plans, 3D renders and a supporting report. This includes advice on relevant planning policies, estimated project costs/timeframe and an overview of who will need to be involved during the rest of the building process.

We can also seek planning permission on your behalf if you need it.

Our packages provide maximum value at three key points in your homeowner journey:

  1. To kick-start an extension or conversion for your own home, now or in the future
  2. To provide plans that illustrate the development scope of your home to potential buyers
  3. To understand the potential of a home that you’re considering purchasing

Our online service is designed for speed, convenience and value, without sacrificing quality. We also offer an on-site measured survey/consultation, if you would prefer face to face interaction. 

Why don't I just use a local architect?

If you’re planning something significant or complicated, like building a completely unique house from scratch, working with an amazing architect can make or break the project.

However, most conversions and extensions are simple hundreds-have-been-done-before type jobs. You don’t need someone to reinvent the wheel in order to get the best possible outcome, and you certainly don’t need to pay huge fees up front, particularly if you’re still deciding whether or not to go ahead with the project.

Sometimes you just need an expert to answer a few essential questions:
  • How can the property be developed?
  • How much will the loft conversion or ground floor extension cost?
  • How much value will it add to my home?
  • How likely am I to be granted planning permission?
  • What will the end result look like?
  • How long will the project take?

Resi can provide you with answers to all of these questions (and many more) in under 72 hours, for a far lower cost than any independent architect. 

You can then make an intelligent, informed decision to proceed with the project, wait, or reject the idea quickly, without too much financial outlay.

Can you help me understand how long my building project will take?

Yes. The report included with your plans will outline the key timeframes and milestones. This can be used as a guide to your completing your project.

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

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

We’ll ask you for:

  • Your name, contact details and the address of the property in question
  • Basic information about the property
  • Your preferred style, estimated budget and a brief description of what you are looking to achieve
  • 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 an estate agent tell me what the value of my property will be after the extension?

Yes. Most estate agents will be able give you a rough idea of what your property might be worth after a project is completed, based on other ‘similar’ properties in the area that have recently sold.

However, they will not be able to provide you with an accurate summary of the cost of your project, what opportunities for future development the property has, or whether your plans are likely to receive planning approval.

Will you take the project forward through planning and assist us with the construction process?

Yes. We are happy to assist you through the planning process. We have comprehensive packages (starting from £700) that include preparation of all the necessary drawings and submission to the council on your behalf.

Post planning, we have a pool of carefully selected professionals, consultants and contractors that we can connect you with to support you through the next steps. If you require assistance with this, let us know.

The report that accompanies your plans will clearly identify the professionals you will need to use in order to deliver your project to completion. 

How can you help me sell my property faster?

We can provide you with a glossy brochure that outlines the extensions and space reconfigurations that are possible for your property. This is the best way demonstrate the latent value in the home that you are selling, brought to life through vivid 3D pictures. No imagination necessary!

We have been frequently been successful in helping homeowners who are struggling to receive offers at the price they wanted, or whose homes have been on the housing market for a while. Please give us a call or drop us an email if you would like to see our case studies, or to discuss how we can help you achieve a speedy and successful sale.

Who else will be involved if I decide to proceed with a planning application and construction?

Our clients are often surprised at the a number of people involved in even the most basic building project. That’s why we accompany your plans with a detailed report outlining who you should expect to consult during every stage of your build.

Depending on your project, you might need to work with any of the following:

-         An Architect
-         A Structural Engineer
-         Your local council's planning department
-         A Drainage Surveyor
-         Building Control or an Approved Inspector
-         A Party Wall Surveyor
-         Builders
-         Building Control or an Approved Inspector
-         Various Tradesmen

For further information on the end to end process of extending your home and what steps are involved, check out our downloadable information pack.

When do I pay?

Payment can be made once we've issued you a quote. To pay, you'd need to login to your Resi account and make the payment from your dashboard. Some invoices may have a deposit option, allowing you to pay a small % to book in our design time.

How is it possible to deliver your service without visiting my home?

Our pricing is particularly competitive as we do not require a site visit as standard.

If you have bought or sold in the last 20 years, your floor plans will probably be available from a variety of public sources. Working with these, and a host of other proprietary resources, we can accurately complete 90% of designs remotely. Sometimes we may ask you to cross check measurements using a tape measure. When this is necessary we will guide you through this exercise. 

All of the case studies that can be viewed on our website have been produced without the need for a site visit. 

For the 10% of homes where a site visit is necessary, we will arrange for a measured survey to be carried out by one of our trusted partners. This usually costs between £350 to £450, which will be included in the quotation we provide to you. 

Can I request additional renders/perspectives?

Yes. Each additional render is £75+VAT.

Can you support us if we live abroad?

We currently only offer our services in the UK and Ireland and in English. As long as the property you are interested in developing is in the UK or Ireland then it doesn't matter where in the world you are based.

What if I am unhappy with the service or output?

Your satisfaction is our highest priority. If you feel our service has fallen short of your expectations, we encourage you to give us a call or drop us an email.

Do I have to pay for introductions to contractors?

Where we receive a payment for introducing your project to third parties, a sum of money may be paid to us for the introduction. This cost will be not be covered by you as the client.

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 currently have three ARB registered Architects working at Resi, along with two architectural technologists, so your project is in safe hands.

Collectively we've completed over 750 residential extensions and renovations across the whole of the UK. You can learn more about our founders here.

Can you complete plans for bespoke projects and new builds?

Yes. We offer a bespoke service. Just email or call us to arrange a consultation. 

Recently we have completed the conversion of a church in Liverpool into 19 self-contained flats, have added a larder to a listed 18th century manor house, converted an outhouse and completed a change of use on an old country barn.

Whatever your project, our pricing is transparent, standardised and fair. We'll always talk you through your quote in detail during the proposal stage.

Where is Resi based?

Our main office is in Bermondsey, London, but we service all of the UK and Ireland. 

Does Resi also carry out the building works?

No. We do not carry out any building works. We are a design and planning company only. 

However, we do have an extensive network of reliable and trusted partners that we are happy to connect you with.

How much are construction costs?

This depends on complexity of build, materials used and geographic location. Our cost calculator will give you an approximation of construction costs based on national averages.

Planning drawings (which we provide) are the only way for an accurate costing to be carried out. 

What happens if my planning application is refused?

In 99% of refused cases the council will provide you with an explanation. We will analyse the issues that have been raised and advise on solutions to satisfy the council's requests. 

We will then resubmit your application and also alert you at this point if there are any additional costs.

It is not unusual for planning permission applications to be refused, but with proper research and the correct plans and elevations this likelihood can be reduced.

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. 

How many revisions to plans are included in my design package?

The pricing for all of our packages includes one full set of revisions. This means you can change as many elements of the design as you wish, but they must all be communicated to us in one batch, rather than drip fed over a period of time. 

We are more than happy to accommodate further revisions until you are happy with your plans. These will be charged at a flat rate of £75 per hour, inclusive of VAT. 

Can you obtain planning permission for my project?

Yes. We will prepare all the necessary information and drawings required for your project and submit your application to your local council as your agent. You will be liable for the fee, which currently stands at £172.

As your agent, we will liaise with the council on your behalf with any queries or requests that they have. 

What is a measured survey and do I require one?

During a measured survey a surveyor visits your house and uses a laser to capture the dimensions of your room(s). 

Typically a measured survey will cost approximately £350 to £500. There is usually enough information available (including floor plans) for us to skip this step.

If we cannot locate existing floor plans for your home, we will ask you to conduct a cross check survey. We charge £140 for this and will guide you through the process. 

If you are unable to cross check measurements then we will require a full measured survey. We never proceed with creating plans without obtaining accurate information first.

Do I require planning permission for my project?

Not necessarily. 

The team at Resi can help you determine if your plans fall under something called 'permitted development'. If they don't, you’ll need to apply for planning permission. 

Under UK planning policy you are able to build on your property without planning permission if the proposed development falls under certain rules. For more information, see our comprehensive guide to permitted development rights here.

Even if you can build under permitted development, we still advise that you apply for a lawful development certificate. This will cost £82 and we are happy to submit an application for this on your behalf.

When would I submit a pre-application to the council?

We may suggest that you apply for a pre-application if your proposed project is contentious or high risk.

This is a low cost exercise as the level of detail that we need to produce is much less than full planning. It gives the council a chance to give feedback on your project and issue guidance on the likelihood of you gaining their approval.

Is the work that Resi completes insured?

Yes. We carry professional indemnity insurance with a limit of £2m.

What are the terms of the Resi (BuildPath at time of promotion) Christmas promotions?

Promo codes are limited to one per individual. Discounts apply to any of the concept, planning or 3D visualisation packages. Discounts do not apply to any measured surveys. Promo codes are not to be used in conjunction with any other discounts or offers. The offer expires on the 10th of January 2018. We can not honour the discount for any quotes issued after this date. Happy Christmas! 

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