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House extension plans

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What's Included
 It all starts with House Extension Plans

As you are looking at this page we presume you are considering getting plans for an extension the design of which we do not yet know, extensions will generally fall into one of the following categories permitted development or requiring full planning permission. if you are proposing to use the extension for habitual purposes you will also be required to gain  building control approval.

so that's two separate applications to two different departments at you local council, the planning department and the building control departments. both interested in different aspects of you proposed extension. the planning department will generally be looking at the external appearance, were building control will be looking at the structure and ensuring standard are met.


our service has been tailor made to provide this exact service. from elevations, floor plans, sections, section details, drainage layout, steel, rafter and floor joist layout, structural calculations for all steels, footings, rafters, columns, retaining walls all unique to your property.

Were to start simple steps

  • fill out our short contact form here

  • we will view your site using ordinance survey information and Google streetview to asses the scoop of works

  • we will provide you with our quotation with associated fees and services you may require we may also provide advice

  • If you are happy with your quotation just reply that you would like to go ahead and we will allocate you with an onsite consultation, survey and get your project started.

House Extension Design Ideas

It may be difficult to come up with designs wile looking at a existing space, with confining walls, drainage, lighting issues but to name a few of the issues that will define a space and make it work and reduce build costs. The key to a great looking extension is successful incorporation with the original design of your house. This is why we include a design confirmation stage of our plan preparation, we will submit the design confirmed on site and a second design, allowing you to choose or mix your design  


Building regulation plans 

Single storey extension plans and services this is one of the most common types of extensions with the potion to add bi-fold doors and the opening of walls to provide an open plan living space. its a great addition almost totally transforming the way you use your home.


House extension plans


Double storey extension plans and services

this type of extension is great if you have the space, click on the image to the right find out more.  the We prepare architectural plans for House extensions, Conversions and New buildings. Building regulations applications and planning approval applications.

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Home Extension Costs in the UK


Single storey rear and side extension plans and services

this type of extension may also include garage conversion and the removal of walls to open up the space. click on the image to the right to find out more about this type of extension

Average prices on home or house extension for various size and type of extension will depend on design finish and use. At our site visit we will Sketch out some plans ideas as part of our brief we may also include as part of your application bundle a full cost of works and material list allowing you to see builders mark up or allow you to project manage your own build. Project manage your own build



Building plans drawings Home extension

Carpenter Joiner Builder Designer of a home extension, structural alteration to residential properties will need and should request a set of approved construction drawing to work too, we will submit a set of detailed drawing to building control for approval witch will include detailed drawings to a scale of 1:20 full specification, structural calculations and application submission to your local building control department. Building regulation plans  We provide our full architectural services for residential properties in and around London and the M25 we may visit your site and provide a house extension plans service to obtain planning permission and building regulation approval

House Extension Online Save 95

House Extension Online – if you live outside of the M25 or would like to save on our surveying fee we can provide you with a surveying pack that will allow you to conduct your own survey.  self survey online

Extension plans affordable? ...

We will beat any like for like quote. Send your quote to us at info@sharpeplan.co.uk

I need an extension for a:

lager kitchen and dinning area

we suggest a Single storey extension

additional bedroom for a growing family

we suggest a Double storey extension or a Loft conversion

entertainment areas

we suggest a Single storey side and rear extension

utility area

we suggest a Single storey extension

We will design your extension with your needs in mind, we can advise and suggest design ideas and solutions. with planning laws relaxed your extension can allow more flexibility with your design. with our full plans package we  will submit both your planning and building regulation applications, we include structural steel / timber calculations in prices quoted. contact us today or request a call to discuss your ideas or get a quote on 0207 503 0360


Most houses can be Extended, adding an extension to your house is obviously dependent on whether or not you have the available land adjacent to your property. If it is available an extension may be a more viable option compared to moving house, especially in areas where the difference in price of a house compared to the next size up is a daunting prospect. you have the advantage that you don't need to move, and therefore, you are not dependent on selling your property and finding a new one that suits your needs. find out online whether or not your property is able to be extended

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    Loft Conversion Plans
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