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Homes in Chelsfield offer its residents the perfect balance between the quiet country life and the bustle of the city. It is therefore no surprise that most families choose to extend their homes rather than incur the cost and inconvenience of moving houses, when faced with a lack of living space.

Home extensions in Chelsfield are the ideal opportunity to create extra space to your home, increase its value, and add a unique design element of your own.

But in order to achieve the perfect house extension, it is imperative that you begin this process with a clear idea of the extension you want to create and choose the best extension specialists for this crucial investment.

A home extension is the perfect way to increase the floor space of your existing home without having to incur the cost of moving houses. It is also a great way to add value to a property.

A house extension takes into account the area available within your property, the additional space required, and the budget allocated to design and create a home suited to your needs and lifestyle.

An extension must also consider the planning permission and approvals required, as well as specific design elements that could impact energy bills in the future. For this reason, it is best to consult an extension specialist that could help you design and build the ultimate home extension.

House extensions can be categorised into different types based on their location within the property or the area utilised. Some of the more popular home extensions found in Chelsfield include:

Rear extensions – Invariably, one of the more popular extension types due largely to the area available at the rear of most properties. This allows homeowners many options and opportunities to maximise the extension. Rear extensions are ideal for creating kitchen extensions, guest rooms or even office pods.

Side return extensions – Side return extensions utilise the area that runs along the side of a property as well as a portion of the rear. These are often preferred to wraparound extensions as they retain much of the valuable garden space. Side return extensions are incredibly popular in terraced and semi-detached properties. They are particularly useful in creating dining rooms which feature the much-coveted indoor-outdoor connections.

Multi-storey extensions – Though more complex than the common single-storey extensions, multi-storey extensions add great floor space and value to a property. As roofing and excavation costs are the same, these extensions are also seen as a cost-effective solution to double the space of the extension. Multi-storey extensions are perfect for adding extra bedrooms and bathrooms to your property.

The requirement for planning permission is largely dependent on the design of the proposed extension.

Extensions that fall under permitted developments do not need planning permission. However, to be categorised as a permitted development, the proposed extension must meet specific size limitations.

Also, properties such as flats and maisonettes and those listed in conservation areas will require planning permission irrespective of the extension size.

The planning portal provides homeowners with a comprehensive understanding of what is allowed and which extensions will require planning permission.

If planning permission is required, a detailed application including structural diagrams of the proposed extension needs to be submitted for approval. This process can take up to eight weeks based on the complexity of the extension.

In addition to planning permission, building regulations approval and party wall agreements also need to be considered to ensure that the extension meets the building guidelines and standards.

Home extensions come in an array of styles and designs. Many Chelsfield properties feature extensions that are a combination of elegance, functionality, and modernity. These include:

Kitchen extensions –

A classic home extension request that transforms small and dark kitchen-diners into warm and inviting spaces perfect for hosting dinners and celebrations. With the installation of the latest fittings, kitchen extensions are ideally suited for modern homes.

Loft conversions –

A wonderful way to maximise the loft space within a home, loft conversions offer incredible versatility to homeowners in how they are designed and used. They are ideal for creating additional bedrooms, offices or playrooms.

Refurbishments –

Even without a typical extension, the existing space within a room can be transformed and recreated through refurbishments. Changing the layout, creating open floor plans and optimising the natural light that enters through the addition of well-placed windows, helps to create larger and brighter living spaces.

Home extensions in Chelsfield can cost anywhere between £30,000 to £100,000. This is because the cost of a home extension depends on a number of factors such as:

  • The size of the extension
  • The type/ complexity of the extension
  • Location
  • Groundwork
  • Building materials
  • Fittings and fixtures
  • Specialists’ fees

It is therefore a good idea to plan a budget that takes these factors into consideration in order to create the best possible home extension.

A house extension is an incredible opportunity to add space and value to your home provided it is done right. To create the perfect extension that proves worthy of the investment, it is imperative that the best home extension specialists are consulted.

This is where Good Design and Build comes in.

We are the primary home extension builders that specialise in designing and creating bespoke home extensions in Bromley and Kent. With decades of experience and unmatched expertise, we provide complete project management from start to finish. This means we offer:

  • Free consultations and quotations for proposed extensions
  • Surveys of the location
  • Architectural designs
  • Contractual work
  • Technical expertise
  • Daily on-site management of the build

And so much more.

Our incredible team comprises of surveyors, engineers, architects, builders, technicians, and project managers. Enabling us to create high-quality extensions that are backed by warranties and allowing you to enjoy a truly stress-free experience.

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.

Learn more

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.

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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