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Over 12 Years of Experience

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The SE6 postal district of London comprises the beautiful town of Catford which is home to an impressive community, a thriving economic centre, and fabulous transportation connections. The lush greenery and parks, as well as the beautiful Victorian and Edwardian homes, add to the charm of Catford and ensure that residents are not likely to move out of the area.

But it is possible to upgrade your home and lifestyle without moving houses. This is because home extensions in Catford allow property owners to add value and space to their current homes without the cost and hassle of moving houses.

Home extensions in Catford offer homeowners the unique opportunity to design and create a part of their home while resolving space deficits and increasing property value.

Good Design and Build are the primary home extension builders in Catford and Lewisham. Specialising in renovations of Victorian and Edwardian homes, we offer complete project management of the extension from start to finish.

The type of home extension designed is based on the area available as well as the space requirements of the homeowner. As such, home extensions in Catford can be categorised as:

Rear extensions- Built on the rear area of a property, rear extensions offer homeowners a wide range of possibilities as to how to use the extension. These extensions are extremely versatile and may be designed to create kitchen extensions, guest rooms, or even office pods.

Side extensions- Side extensions run along the side of the property and can be built as single-storey or two-storey extensions. These extensions are ideal for creating open floor plans and can help maximise the natural light in a room enabling the design of larger and brighter living spaces.

Side return extensions- These extensions are a combination of side and rear extensions. Side return extensions are often preferred to wraparound extensions as they do not use up too much valuable garden space. These extensions help create incredible indoor-outdoor connections which are a perfect addition to beautiful dining rooms.

Multi-storey extensions- Though more complex than single-storey extensions, multi-storey extensions add incredible value to a home. They are also cost-effective as the square footage of the extension is essentially doubled without additional roofing and excavation costs. These extensions help create additional rooms, bathrooms, offices, and even high-ceilinged dining areas.

The short answer is yes. Other than some permitted developments and extensions of limited sizes, most home extensions in Catford require planning permission and building regulations approval.

The process for obtaining planning permission can take up to eight weeks depending on the complexity of the proposed extension.

Luckily, Good Design and Build oversee the entire process for our clients. This includes surveying the location, submitting detailed diagrams of the proposed extension, coordinating with the local council, and securing the requisite approvals.

This ensures that every aspect of the build complies with planning guidelines and building regulations.

The unique architecture of Catford means home extensions built in Catford must be designed to seamlessly integrate with the original structure to create a cohesive unit.

Some of the more popular home extension styles in Catford include:

Kitchen extensions- Kitchen extensions are highly sought-after as they add incredible value to a property whilst at the same time creating a beautifully upgraded centrepiece to a home. The addition of outdoor connections and skylights results in the creation of a bright, warm, and inviting space perfect for hosting family dinners.

Loft conversions- Loft conversions help convert unused space into functional living space. The versatility of loft designs allows homeowners to customise the space and create beautiful rooms, playrooms, and offices.

Garage conversions- Garage conversions are a simple, cost-effective way in which the layout and design of a home can be transformed while adding space and value to the property. The newly converted space may be utilised and designed as per the property owner’s requirements to create playrooms, offices, or even an extension of the original living room.

Refurbishments- Even without an extension, the existing space can be transformed and upgraded through remodelling and refurbishments. This can involve changing the floor plan and optimising the natural light that enters thereby creating a brighter, more modern space.

The cost of a home extension in Catford depends on a number of variables which include:

  • The type of extension
  • The size of the extension
  • Location
  • Groundwork
  • Building materials
  • Fittings and fixtures
  • Specialists’ fees, etc.

As such, home extensions in Catford can range from £35,000 to £135,000.

Good Design and Build offer free consultations and free quotations for proposed extensions. We also provide easy payment plans and complete cost transparency throughout the build process.

This ensures that homeowners can obtain the extensions they require without breaking the bank.

There is a reason why Good Design and Build are the leading extension builders in Southeast London.

Our extensive experience coupled with our unmatched understanding of the architecture of Catford homes makes us the ideal extension specialists for its residents.

That’s not all. Our diverse team comprises of surveyors, architects, builders, technicians, and project managers. This ensures that every aspect of the build, from planning to completion, is professionally overseen by us, including daily on-site management.

We ensure that each extension is specifically tailored to client requirements and designed and built to the highest standards.

Quite simply, we help our clients design and create the ultimate house extensions that exceed their expectations.

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.

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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