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Over 12 Years of Experience

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London doesn’t get more London than West London. It is the socio-economic-political centre of this great city, and as expected, has a pricey property portfolio. Moving to a bigger home in search of a bigger space is not elementary here. House extensions West London is not just a solution but an improvement if carried-out right. Enlarging floor space of prime property has considerable return on investment. We enable this with superior quality seamless additions that bring new functionality and value to your property. City life doesn’t have to be a constricted affair. There are several ways to introduce extra living space you need for better entertaining, accommodating a growing family, making house guests comfortable, or reconfiguring the interior layout – all without the need to buy a bigger house.

House extensions can be either single-storey or double-storey. Single-storey extensions are the more common choice as they cost less and construction time is shorter. However, double-storey extensions are more cost-effective in terms of the space they produce, as you save on a second roof and foundation.

Side Extensions – also called Side Returns, these have become the most popular additions to Victorian and Edwardian homes. These properties have a rear outrigger that leaves a leftover pathway that runs alongside the house. By building out onto this area, the proportions of your house widen to accommodate a kitchen extension or any other extra space you might need. A double-storey side return extension frees up more space upwards with minimal loss of garden area.

Rear Extensions – these add space to the rear of the property, across the whole width by building onto the back garden. Whether it is a single-storey or a double-storey extension, this technique builds brighter spaces that let in more natural light due to their exposure to the garden. The open layout of these extensions gives them more flexibility to rearrange living spaces and connect them with the outdoors.

Wraparound Extensions – connecting a side extension with a rear extension gives you a Wraparound. True to its name, it wraps around the property in an L shape extending to the side, as well as the rear. This design offers a generous amount of additional space you can use to create bedrooms, a living room, kitchen/dining area, and free-flowing open-plan settings.

Double Storey Extensions – if a single-storey extension cannot fulfill all your needs, you have the option of adding another level. These can be double-storey side, rear, or wraparound extensions. If you want a roof terrace or a roof garden to offset the loss of outdoor space below, this is the type of extension to choose.

Usually, no. Extensions fall under permitted development rights, which means you can carry them out without planning permission. However, to do so, you need to abide by the following guidelines:

  • Your house is not situated within a conservation area, and it is not a listed building.
  • The extension takes up only half the land area surrounding the original house.
  • The eaves and ridges of the new addition are not higher than the highest part of the existing roof.
  • Eaves should be less than 3m if the extension comes within 2m of the boundary.
  • Side extensions cannot exceed 50% of the width of the original house.
  • Single-storey extensions cannot exceed 4m in height.
  • Double-storey extensions can only have obscured glazed windows at the side elevation. Unless the openable part is 1.7m above the floor, the windows must be non-openable.
  • Single-story Rear extensions cannot extend beyond 8m of the rear wall if it is a detached house or 6m if it is a semi-detached house or a terraced house. You will need prior approval as this is a recent change to regulations.

For over twelve years, we have been transforming homes in London to integrate modern luxuries and elegance with the iconic Victorian and 1930s architecture. Our designs are at the forefront of our work with experienced architects working to create bespoke solutions that complement your home and everyday life. Our plans are compliant with planning guidelines and building regulations. We ease your workload by undertaking the planning application process and other pre-build requirements, including assistance with Party Wall Agreements. We also lessen your commitment by 50% by providing two separate contracts for each of the design and build phases. You receive a full-time project manager to ensure the smooth functioning of the construction process. We also provide insurance backed warranty for our products and services.

The costs differ depending on the size, design features, and materials used. Building costs for each extension are as follows;

A Side Return Extension costs around £35,000

The cost of a Rear Extension starts around £40,000.

Wraparound Extension can cost £55,000 and upwards

Double Storey Extension costs £75,000 and above

Call us today to build the extension from your dreams with minimum hassle and proven expertise.

Don't move. Extend in style

We can save you the hassle that comes with moving not to mention the heavy stamp duty! Adding an extra loft bedroom or enlarging the living kitchen dining space on ground floor is an economical way of transforming your home to suit growing needs. The projects can range from £40-100K depending on your requirements and can be completed within 8-16 weeks.

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How we deliver projects

Our process is simple and divided into two distinct phases with separate contracts: Design and Build. As a client you only commit to one phase at a time depending on what stage of the process you are in. Each phase consists of three stages as described below.

1. Design

This is the kick-off point for your project. We carry out a complete architectural measured survey of the property. This allows us to create accurate CAD design drawings. This is followed by a design meeting to start discussing your ideas in more detail.

2. Planning

At this stage we finalise the designs with you and start preparing planning applications as needed. We place a high priority on ensuring that plans, designs and schedules are all based on a thorough and detailed understanding of planning guidelines. We co-ordinate with local authorities until the decision is made, and the planning approval is secured.

3. Technical

Once the planning consent is secured, we translate the design drawings into more detailed technical drawings for the purposes of building control and construction. This also includes specifications and structural calculations. At this stage, we will also submit to you our ‘no obligation’ quote for the build phase.

4. Pre-build

90% of our clients decide to stick with us after the design phase is completed. Once the build contract is signed, we kick off the process by making sure all the pre-build processes are complete. These include assistance with party wall agreements, Thames Water build over agreement, submitting building control application, and preparing method statements etc as needed. This stage ends with a pre-start meeting with your foreman before the actual build begins.

5. Build

One of our foremen will be dedicated to your project and will be on-site to manage everyday works. Our project managers will be overseeing the works to make sure they are completed to high standards, within your budget and on time. Throughout the process we will keep you updated with the progress and coordinate the works with third parties such as kitchen or flooring suppliers. We will also advise and guide you to choose any suppliers if needed.

6. Handover

As the build draws to finish, we will help to iron out any ‘snags’ to make sure everything is completed to your satisfaction. We will put together all necessary certificates such as gas, electricity and building control completion along with warranties for glazing, boiler etc. At the final completion meeting, we will hand you these documents, together with the keys to your house. Needless to say, you can contact us any time after this, if you want us to look at something.

This is the kick-off point for your project. We carry out a complete architectural measured survey of the property. This allows us to create accurate CAD design drawings. This is followed by a design meeting to start discussing your ideas in more detail.

At this stage we finalise the designs with you and start preparing planning applications as needed. We place a high priority on ensuring that plans, designs and schedules are all based on a thorough and detailed understanding of planning guidelines. We co-ordinate with local authorities until the decision is made, and the planning approval is secured.

Once the planning consent is secured, we translate the design drawings into more detailed technical drawings for the purposes of building control and construction. This also includes specifications and structural calculations. At this stage, we will also submit to you our ‘no obligation’ quote for the build phase.

90% of our clients decide to stick with us after the design phase is completed. Once the build contract is signed, we kick off the process by making sure all the pre-build processes are complete. These include assistance with party wall agreements, Thames Water build over agreement, submitting building control application, and preparing method statements etc as needed. This stage ends with a pre-start meeting with your foreman before the actual build begins.

One of our foremen will be dedicated to your project and will be on-site to manage everyday works. Our project managers will be overseeing the works to make sure they are completed to high standards, within your budget and on time. Throughout the process we will keep you updated with the progress and coordinate the works with third parties such as kitchen or flooring suppliers. We will also advise and guide you to choose any suppliers if needed.

As the build draws to finish, we will help to iron out any ‘snags’ to make sure everything is completed to your satisfaction. We will put together all necessary certificates such as gas, electricity and building control completion along with warranties for glazing, boiler etc. At the final completion meeting, we will hand you these documents, together with the keys to your house. Needless to say, you can contact us any time after this, if you want us to look at something.

Featured Projects

Interior View - Sellons Ave Project

Harlesden

Sellons Ave NW10 4HJ

The project included creating a master bedroom in the loft with an adjoining terrace.

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Fulham

Orbain Road SW6 7JZ

This project was completed in 2023 and the approximate budget was £101,000.

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Kitchen Extension in East Sheen

Lambeth

Hetherington Road SW4

We completed this stunning project for our client Angus in Lambeth.

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Teddington

Station Road SW4 7PA

We completed this exciting project for our clients on Station Road, a quaint residential area in the heart of Teddington.

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Leyton

Windsor Road E10

We completed this kitchen extension on Windsor Road, a charming residential street nestled in the heart of Leyton.

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What Our Clients Say

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Build a Quote!

Let's get started with building your own bespoke quote for your dream extension. Tell us as much in detail as possible to get most accurate price.

Get Started

Build a Quote!

Let's get started with building your own bespoke quote for your dream extension. Tell us as much in detail as possible to get most accurate price.

Get Started