Bespoke Design & Planning

Over 12 Years of Experience

Free Consultation & Itemised Quotes

Full Cost Transparency & Project Management

Insurance Backed Warranty

Price Match for
Like-For-Likes Quotes

Balham is the gateway to south London, with a high street bringing the joy of leisurely brunch to its independent coffee shops, bars, and restaurants. Its prime attraction, although not physical, is the community. There is pleasantness you definitely cannot ignore. Along with its excellent transport links, high concentration of schools, and the lowest council tax rates in the country, the semi-detached and terraced periods in the area make ideal family homes. With house extensions Balham that revamp home sizes, you will not have to look further afield for a comfortable life. Located at a nexus of four commons – Clapham, Wandsworth, Tooting Graveney, and Tooting Bec, you are never too far from open green spaces either. Our accomplished design department and building teams come together to introduce cheerful contemporary spaces to traditional bones of time-honoured architecture.

Side Extensions – these are a classic period home extension type. Victorian properties have a rear outrigger that forms a leftover garden pathway running alongside the border wall. A Side Extension encloses this pathway to widen the original rear ‘extension’ of the property. It helps you to extend the kitchen area for an open-plan layout or add another living space.

Rear Extensions – these extensions are some of the most popular due to their openness to the garden and natural illumination. They extend the rear end of the property onto the back garden. The new length spans across the property, offering more versatility to reconfigure the floor plan.

Wraparound Extensions – combining a Side Return with a Rear Extension results in a Wraparound. It creates space on the side, as well as the rear, offering you the freedom to create a bedroom, a bathroom, or a living room with an open-plan kitchen/dining area.

Double Storey Extensions – Adding another level to your single-storey extension can provide more space. Double-storey Side and Rear extensions help you save garden space below and even create open-air spaces at the top with a roof terrace or a roof garden.

No, house extensions do not need planning permission if they are within guidelines. However, if your extension does not comply with any of the limitations below, you will need to submit planning applications.

  • 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 obscure-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.

Basement Conversions – your cellar can be a lot more than just a storage unit. A basement conversion builds in a space you already have, and you can extend its capacity with more excavation. Building downwards is just as fun as building upwards.

Loft Conversion – the advantage of period home architecture is its roomy attics. Use the roof space to extend the floor area of your property with a loft conversion. It can be a no-hassle room in the roof with skylights/rooflights or a double mansard that offers plenty of extra space.

Garage Conversion – partial or full, integral or detached, a garage conversion does not take up your valuable garden space. It can be a granny pad, a studio, office, kids’ space, or a pool house.

Our superior quality extensions incorporate professional designs attuned to contemporary life. We produce a high standard of finish, textures, tones, and elements that bring freshness to period architecture. A team of dedicated architects, structural engineers, and skilled builders flawlessly connect the seams between the old and the new with precision and elegance. We always work within your budget and get the best materials your money can buy. Our teams undertake planning permission requirements and assist with Party Wall Agreements. A project manager ensures safety, accountability, and the best practices for your home extension project from its start to finish. We are only a few builders in Balham offering clients a two-stage contract instead of one. You receive full cost transparency and easy payment methods with our no-obligation quotes.

A Side Return Extension costs around £35,000

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

A Wraparound Extension can cost £55,000 and upwards

A Double Storey Extension costs £75,000 and above

Contact us today to build dream extensions in Balham that represent unpretentious modernism and exceptional functionality.

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.

Build a Quote

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

Fulham

Orbain Road SW6 7JZ

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

Learn more
Kitchen Extension in East Sheen

Lambeth

Hetherington Road SW4

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

Learn more

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.

Learn more

Leyton

Windsor Road E10

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

Learn more

Clapham

Hydethorpe Road SW12 0JF

We did this kitchen extension project for our clients in Hydethorpe Road SW12.

Learn more

What Our Clients Say

Close

Areas we cover

Chiswick

Acton

Balham

Battersea

Chelsea

Clapham

Croydon

Ealing

Earlsfield

Elmbridge

Epsom

Fulham

Hammersmith

Hampton

Hillingdon

Hounslow

Kensington

Kew

Maida Vale

Mortlake

Putney

Richmond

Sheen

Surrey

Teddington

Tooting

Twickenham

Wandsworth

West London

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