Design and Build

Home extensions

London, United Kingdom

Design and build home extensions London, United Kingdom

Extending your house can be a good way to increase a property value, Good examples and most common are open plan kitchen extensions with bi-fold doors and skylight,  Based on previous project 90% chance is that most of new customers will choose the same method and decide not to move homes to gain extra space but build and extend existing. Extending your house is a great opportunity to add a new bathroom or a utility room or perhaps refurbish the whole house and the patio areas. 

House extensions come in all shapes and sizes, different types of materials and design, With our design and build services we can successfully complete your project from start to finish. 


London House Extensions

Extending your house is a fast and simple solution to adding new space to your house. There is a range of traditional house extensions, modern house extensions and contemporary house extensions. The biggest point of house extensions is that you will have extra space at your property and that is a big plus. The house extension can be made and tailored to your needs, we can add as much lighting as you need or build new space for a big kitchen or dining room. 

House Extension Design and Build in London, United Kingdom

Options range from flat roofs, glass roofs to pitched and gable roofs, there are different types of extensions that can be created:

  • Single storey House Extensions. Usually a room extensions for various uses

  • Multi storey House Extension, Can be attached to any part of the building

  • Wrap around House Extension. This is to the rear and side of the building

Do i need a planning permission for a single storey house extension?

As a general rule of thumb provided the extension meets the requirements as set out in the Town and Country Permitted Development order then it is unlikely that your extension will require planning permission.


Please note, if you live in a flat or a maissonette then full planning permission will be required.  You may also need to obtain freeholder or landlord consent for the works.

Building Regulations

All extensions will require building regulations approval.  Even if there is no need to notify your planning office, you will need to notify building control of the build.

Building control approval consists of two processes.  The first involves submitting a set of building regulations drawings into your local authority for approval before commencement of works on site.

The second stage of the approval process consists of building inspector visiting site during key stages of the build to sign off the contractors work.

Provided the building inspector is happy with the work carried out on site they will issue a completion certificate to yourself/your contractor after their final visit at the end of the build.

Side Rear Large House Extension Flat Roo

Permitted development guidelines

Permitted development guidelines for single storey rear extensions. No more than half the area of land around the “original house” would be covered by additions or other buildings.

Single-storey rear extension must not extend beyond the rear wall of the original house by more than three metres if an attached house or by four metres if a detached house.

In addition, outside Article 1(5) designated land and Sites of Special Scientific Interest the limit is increased to 6m if an attached house and 8m if a detached house until 30 May 2019.

These increased limits (between 3m and 6m and between 4m and 8m respectively) are subject to the neighbour consultation scheme.

Maximum height of a single-storey rear extension of four metres.

Maximum eaves height of an extension within two metres of the boundary of three metres.

Materials to be similar in appearance to the existing house.

On designated land no cladding of the exterior.

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Type of house extensions that there is..

Single Storey Extensions

Single Storey extensions are usually at the rear of the property and come in various sizes. They have flat, gable or vaulted ceilings with and options to add skylights or roof lanterns.

Terraced Flat Roof Rear Extension.jpg

Two Storey Extensions

Major construction is required with altering the rear or the side of the house. at least two new rooms are added to the house and the main roof requires reconstruction. 


Wrap around extensions

Wraparound extensions are a popular choice for terraced houses where you have the first floor totally supported out of RSJ steels. This will give you Excellent open plan kitchen space and potentially new bathroom too.

Side Rear Large House Extension Flat Roo

Side extensions

Popular option with semi-detached homes where there is a garage attached to the side. This option can give you more space and additional rooms, From adding a spare bedrooms or bathrooms to widening your property and adding additional value to the property.

Our Services

If you have a project or are planning to start one we would like to hear from you! 


Architecture services

United Kingdom

Architectural design services, architecture services, planning or building regulations drawings, 

project management, design and build company for loft conversions or home extensions... 

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Architectural design services, project management, design and build company for loft conversions, house extensions and new house builds. Architecture services online.

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