Home Extension Plans

Who Are We

Design and Draughting Services are based in Wigan.  We cover the North West, including Wigan, Bolton, Manchester, Preston, St Helens and Warrington. 

We produce detailed architectural plans and drawings for house extensions, garage and loft conversions, renovations and new builds.  We also liaise with local authorities and submit your planning and building regulations applications for approval.

We pride ourselves on offering a friendly, reliable and professional service. 

All of our work is carried out at a fixed price.  

What We Do For You

When helping you to create your desired home, we offer practical advice and guidance to ensure that the end result is best suited to your requirements.  We understand that our clients are individuals and therefore our service is flexible, adaptable and tailored to your needs.

There are several options and we can help you to choose what is best for you whilst ensuring that the work complies with local planning permission guidelines and building regulations.        

We Can Help Create Your Perfect Home 

Your perfect home will be as unique as you are, but there are a few major, practical considerations everyone should deal with before they start choosing the wallpaper. Here we help you decide if you should renovate, convert, extend or start from scratch and build your own home.

Consider the way you live in your home now and think about where it doesn’t quite work.  For instance, do you regularly cook for friends but find yourself stuck in the kitchen while your guests sit in another room enjoying themselves? Do the children share a bedroom when they are really ready for their own space? Do you have a dining room you only use at Christmas which might be better used as a home office?

The first step is to decide which route you want to follow to improve your home.

Extending your property to make more space is much cheaper and easier than moving house!  Extensions can either be single or two storey or you could add a dormer loft room. 

A single storey rear extension with a loft conversion is a popular choice for smaller homes, but if space allows, semi-detached houses may benefit more from a two storey extension. This will allow you to have twice the additional living space which would allow for the creation of an extra bedroom, a second bathroom or a new home office. But the trick is never to over extend your property, every road has its ‘ceiling price’ and if yours is out of keeping with its neighbours you may not recoup your investment when you eventually sell.

Design And Draughting Services will explore your options and design the extension that works best for you.


This involves altering parts of your house in order to create new and better ways to use existing space.  For example, converting a loft to make an extra bedroom or altering an unused garage to make more living space.

Loft conversions offer a convenient way to add an extra bedroom, bathroom or home office. The easiest way to tell if your loft is suitable for conversion is to see if you can stand upright at its highest point, as this needs to be at least 2.3 metres. Design and Draughting Services can design practical loft conversions which will enable you to make the most of the loft or attic space available.   


A popular way to improve your home and create additional space is a garage conversion. If your garage is only used as a storage area, ask yourself if it would be better used as habitable space. You will have to upgrade the structure to meet current building regulations covering energy efficiency, damp-proofing and ventilation. If the conversion involves building on top of the garage, the foundations will need to be checked to show they can take the extra load. Design and Draughting Services can help you to turn your unused garage into the additional space that you need.

Remodel Existing Rooms

Remodelling is often the best solution if you need different living accommodation rather than extra living space. For example, this could involve knocking down internal walls, dividing rooms by adding a partition wall or installing a downstairs toilet. In normal circumstances, planning permission is not needed for this work. However, the work must comply with the building regulations if it involves alterations to the structure of the building or the drainage, for example removing a load-bearing wall.


Build Your Own

We have probably all dreamed of building our own homes, but unless you are a born designer, project manager, negotiator and financial controller the project could spiral out of control.

Every stage of the build will have to be planned in minute detail, from the location of the plot, the design and layout, the negotiations with planning authorities and selecting the right builder.

So if you’ve never had any experience in managing a building project, it might be worth getting a project manager or finding a builder who can also offer that service. You must be extremely clear as to what your requirements are and sticking to your budget is crucial, always build in at least a 15 percent contingency fund – if you don’t need it that’s brilliant but rare, but if an extra expense crops up, you’ll have no need to worry.



  • Single storey extension 
  • Double storey extension
  • Kitchen extension
  • Conservatory
  • Orangery


  • Garage conversion
  • Loft conversion
  • Dormer loft extension


  • Knocking down internal walls
  • Dividing rooms with partition walls
  • Installing en-suite bathroom or downstairs cloakroom

New Build

  • Build your own home
  • Garden annex
  • Garden office

The Process

Step One
Free Consultation and Design
Step Two
Complete Design Service
Step Three
Planning Applications Building Regulations
Step Four
Extensions Designed

To Start

Contact us by either telephone or E mail or use the contact page.

We will then arrange a time convenient to you for us to come and visit you.

This initial visit will consist of a free consultation where we will discuss your requirements and offer you suggestions and helpful advice.

We will provide you with a set price for us to carry out your requirements.

If you are satisfied and decide to proceed, we will survey the site while we are there or arrange another convenient time.

We will then produce drawings which should be completed in approximately 7 to 10 working days and return them to you for your approval. We will offer various options and will allow you to choose what is best for you. 

What Happens Next?

When you are completely happy with the drawings, we will provide you with large format paper copies and/or electronic copies.  You can use these to obtain quotes from builders.

If required, we will submit the drawings to the local authority for planning permission and building regulations approval on your behalf, along with the necessary forms.  This means that you do not have to deal with any paperwork yourself.

We will deal with any matters which may arise relating to planning permission and building control which means that you will not have to deal with any problems.

We will advise you when written permission has been granted and you may then instruct your builder to carry out the work.

Questions? Please drop us a line

If you have an enquiry, or just want to have a chat about what’s possible. Please send us a message and we’ll get right back to you.

Design and Draughting Services
Monument Road

01942 312707

[email protected]


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Extension designer AND architectural designer near Wigan. Extension plans drawn up.