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Plan the best loft conversions Epsom with foolproof bespoke designs

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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The birthplace of Epsom Salts – this Surrey town is steeped in wellness and good living. With Georgian architecture dominating its streets, Epsom is another of Britain’s most envied locations for residential life. With easy access to Greater London and the countryside of Surrey, this is the nexus between city lights and rolling hills. And, we understand if you have fallen in love with your neighbourhood and don’t want to move. Most homeowners move to find space for the growing family. But, you don’t have to with loft conversions Epsom as the answer to your space problem.

After a site visit, our architects draw up plans for the type of loft you choose per building regulations and Epsom area planning permission requirements.

Attic conversions need 2.2m head height and adequate room for stairs to be fitted.
Your existing roof should not be in any danger due to building work.
Structural strength and stability must be present in the new and original floor, roof, and walls.
Living in a listed building or a designated area needs planning permission.

Dormer – built into the existing slope of the roof, it forms a box-shaped structure with a flat roof. The basic design maximises head height and floor space and is one of the most affordable attic conversions.

Rooflight – if your loft has enough habitable space, this version converts it in its existing dimensions. With the addition of Velux windows and a roof balcony, your loft becomes a bright, airy, and an energy-efficient living space.

Mansard – frees up extra space for an entire small apartment along the length of a whole roof plane. A sloping side of the roof becomes almost vertical, with windows housed in dormers.

Hip to Gable – creates space by replacing the sloping side of a roof with a gable wall the same height as the ridge to gain head height and floor space.

The cost can start from £20,000 and go up to £60,000 plus depending on the size of the property, design chosen, and building services included.

We are a member of the UK’s Federation of Master Builders and have the nation’s most highly skilled architects, structural engineers, and builders on our team. All our build projects begin after a methodical bespoke design phase. We assign a diligent project manager who oversees all activities from start to finish.

Good Design & Build operates in Epson Surrey. Please get in touch today for a no-obligation quote for your loft conversion in Epsom.

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.

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