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We have over 100 Architects and Designers all over the U.K. We design hundreds of double storey extensions every year for planning permission and building regulations applications.
Low Cost Architect's Plans!
The addition of a double storey extension can add significant value to your home, plus it can stop you having to move house to a larger property and the expensive fees involved.

Over the years we have been asked to design double storey extensions for the following uses:

A new bedroom or bedrooms
An en-suite bathroom
A home cinema room
A nursery
A games room
A home office
A snooker room
A gaming room
The additional space can really make a house a home.

We can take care of the Design Work, Planning Permission and Building Regulations, so all you have to do is select your builder.
One day design process available!
(See our F.A.Q.)
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Design Samples & Testimonials


"Thank you for you excellent service. We needed some architects plans for a single storey extension, plus a double storey side extension. You explained everything clearly and the plans are excellent. The planning was approved in 8 weeks and we then started to get quotes from builders. We then gained building regulations approval and booked in our builder. The process was simple".
Mr Magill - Stevenage, Hertfordshire
Double storey side extension


"We were unsure where to start, having never had an extension designed and built before. We required plans for 2 projects, planning permission for a conservatory and a double storey side extension. The process was clearly explained and took away the worry and hassle of thinking we would have to start dealing with the local council. You made the whole thing completely hassle-free and quickly obtained all of our council approvals".
Mr James - Nottingham
Double Storey Side Extension


"We asked for some two storey extension ideas, as we had no idea about the design and how to achieve our goals. The team delivered and came up with three different design schemes and we selected the best one".
"A fast, efficient and above all friendly service, nothing was too much trouble and we would happily use your services again.
Mr Clark - High Wycombe
Two Storey Extension
Frequently Asked Questions
What areas do you cover?

We cover the whole U.K. with our Double Storey Extension Design Services. 

We have over 100 Designers throughout the U.K.

Please Contact Us to find your nearest designer.
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What will the fees be for my extension plans?

Our fees for a Double Storey Extension Planning Application start at £295.00 + Council Planning Fees.

We are happy to provide you with a quote and to confirm the fees on site, at your property.

We have over 100 designers all over the U.K.

Please Contact Us to find your local designer and get a quote.

How long does the design process take?

We are able to call out to your property for our one-day design process. 
We are able to measure your property and sit with you whilst we design the extension in front of you.

These are not final plans and we will still need to complete the building regulations drawings.

We aim to get the design finalised and a copy is then sent through to you to agree. 
We then submit the relevant council applications and plans.


We are able to offer a one day design process, where we are able to call to your property and design your Double Storey Extension at your own home.

This can significantly speed up the design process from several weeks to a single day!

Typical one day design process day:

9.00 AM
Turn up to your property and measure up.
10.30 AM
Set up on a desk / table at your property and design your existing property on AutoCAD.
11.30 AM
Design up 3 different extension ideas based on the design brief, as provided by the client.
12.30 PM
Go through design ideas with the client and pick a design the client likes to progress further.
2.30 PM
Section design and agree with the client the final design ready for 
Planning Permission / Building regulations council applications.
3.30 PM
Go Home

Finish the plans and submit applications to the local authority.

*Cups of tea and chocolate biscuits may be required from the client to help the process along.


We're very efficient at what we do. We use the latest laser measurement technology on site to measure your property. We design our plans using the latest design software on the market. We are then able to pass these savings back to you within our fees.

Will I need planning permission for my double storey extension?

Yes, a double storey extension will require planning permission. We will take care of all aspects of the planning permission on your behalf, such as filling in all application forms and submitting the design to the council.

The Planning Portal is a good place to read about planning permission for your proposed two storey extension.

We will confirm all permissions needed by the planning department, building control and water authority in our site meeting. We will also provide a breakdown of all applications costs involved in your project.

Will I require building regulations approval for my double storey extension?

Yes, a building regulations approval will be required. We will produce the plans for you and submit them to your local authority for a full building regulation approval.

Please contact us to find out more about our services and how we might help with your project.

Do you fill out the local authority application forms and submit the application to the local authority?

We fill in all forms and act as the planning agent from submission until the decision. The application will be viewable on the local authority website so you can keep tabs on local comments and input on the application. You will also be able to see the final dates for the planning decision.

How good are the plans you provide?

Most of our clients are in fact builders. They pass our details to homeowners who are looking to have an extension built. We regularly get calls from builders who have used our plans in the past for new extension projects.

Do you charge for amendments to the plans if the local authority want our extension plans amending?

No, we do not charge for council amendments. You have no control over this, so we don't think its fair that you should be charged extra for something you don't have any control over. We will amend your plans free of charge.

How many sets of plans will I receive?

We provide you with four sets of paper plans and supply the local authority with as many sets as is required for the planning permission and building regulation applications. We will also provide you with a set of PDF plans should you wish to view the plans on a pad / computer or print your own copies.

If you have any questions you would like answering about our extension design services, planning permission or building regulations, please contact us.

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