// Design & Build

Loft Conversions

Bright ideas in your roof space.

Rustic Lounge Loft Conversion with Sofa

We are passionate about bringing light into your life and your home. A loft conversion is the obvious way to experience the changing light of each season and to bring natural colour into your home.

Is your dream room waiting under your roof?

A master suite, a guest bedroom, a home cinema, or a play space for the children? A loft conversion is one of the easiest ways to extend and add value to your home.

Frame a view

One of the best things about being up in the rafters is the panoramic views you will have from your new vantage point. Make the most of them with strategically positioned windows.

Make the most of original features

If you live in a character property, take advantage of bare brickwork and timber beams to offset modern interiors.

Use every inch of space

Make slanting ceilings work for you by positioning baths in areas with low head heights or using tight spaces for storage.

Think outside of the box

Loft conversions are most commonly used as extra bedrooms, but they don't have to be - attic spaces can be transformed into stunning offices, dining areas or family rooms.

Design available for all properties

Common Types of Loft Conversion

There are 4 common types of loft conversion popularly constructed in the UK.  A simple flat roof Dormer conversion is the most popular.  A Mansard loft conversion is constructed by raising the party wall. A Hip to Gable conversion straightens an inwardly slanted end roof to create a vertical wall.  A Roof Light conversion is where you do not alter or expand the existing space at all, but simply add in windows and reinforce the floor to transform an attic into a comfortable living space.

Roof Lights

// Roof Lights

Roof light conversions are by far the cheapest and least disruptive option, as you won't have to make any changes to the shape or pitch of the roof. Instead, it is simply a case of adding in skylight windows, laying down a proper floor, and adding a staircase to make the room habitable. However, you will need to have enough roof space already without having an extension for this type of conversion.


//Dormer Conversions

A dormer loft conversion is an extension that protrudes from the slope of the roof. Dormers, in particular flat-roof dormers, are the most popular type of conversion. They are suitable for pretty much any house with a sloping roof. Dormer conversions are less expensive than mansard or hip-to-gable conversions, but will still add a good deal of extra headroom and floor space.


//Hip-to-Gable Conversions

Hip-to-gable conversions work by extending the sloping 'hip' roof at the side of your property outwards to create a vertical 'gable' wall, creating more internal loft space. This type of conversion will only work on detached or semi-detached houses, as it requires a free sloping side roof.

If you have a detached house with sloping roofs on either side, you can build on both of these to create an even more spacious double hip-to-gable extension.


//Mansard Conversions

Mansard extensions run along the whole length of your house's roof and will alter the angle of the roof slope, making it almost vertical. These tend to be the most expensive type of conversion, but will result in a significant amount of extra space. Mansard conversions are suitable for most property types, including terraced, semi-detached and detached houses.

Maximise space and value

Loft conversions are one of the most cost effective methods of gaining extra space in your home, they are typically cheaper than other home extensions in relation to the additional floorspace. They can also quickly add space to your property without being too disruptive – you should not need to move out while the work is going on.

  • A cost effective method of rejuvenating your living environment

  • The beauty of a loft conversion is that they can even be self-contained with their own front door, meaning families can live together, but maintain their independence.

  • Create a cozy new hangout, or an inspiring kitchen dinner to entertain guests

Lofts are not just handy for storing Christmas lights and dusty heirlooms – a well-designed conversion is one of the most cost-effective ways to gain more living space and can add value to your home.

Whether it is a new home office, an extra bedroom or a family area that you want, our Inspiration gallery will feed your imagination.


Loft conversions can add up to 20% onto the value of your home

Source: Hiscox Insurance Brokers

We take care and pride at every stage with our end-to-end service

Our comprehensive loft conversion service is designed with your needs in mind. We scope from initial design to planning permission and building control, through to installing bathrooms, windows and balconies to view the sunrise or sunset!

Our Loft Conversion team covering Sussex, Surrey and Kent work with you to turn your ideas into reality.

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Initial Consultation

From initial consultation through to completion all our building projects must deliver value. There are numerous factors and moving parts that dictate the success of a project outside of time, scope, and budget. We aim to ensure our clients have a clear understanding of all the elements involved in order to make an informed decision to engage our services.

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Design & Planning

The design and planning stage moves ideas and objectives to a concrete course of action. You may or may not have plans and approval for your project, either way design and planning is where inspiration and imagination come together to help you visualise what you want your home to look and feel like once the project is complete.

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A build project managed by Keystone means that from conception through to completion, everything is managed through a single point of contact. We coordinate all the required professionals from architects and structural engineers, to contractors and building control. Streamlining the process, saving you time and money.

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We pride ourselves in delivering exceptional customer service before, during and after a building project. Aftercare is offered to all clients following successful completion of their project and on-going property maintenance is available as a service to both existing and new customers.

Common Questions: Loft Conversions

You are making an investment decision and asking the right questions will help you ensure you understand the costs and potential hurdles involved in realising the potential of your building project. We will help you understand what is involved before, during and after the process. As a guide here are a few questions that often arise:

In normal circumstances, planning permission is not needed to build loft conversions, although there are situations when you might need to apply for permission before you begin the build. These include:

If you want to include a veranda, balcony or raised platform

If you want to build a roof extension in a designated area, such as an Area of Outstanding Beauty

If your property faces a highway and you want to extend the roof beyond the plane of the existing roof slope

Yes, there are a few ways we can help you to obtain approval. The most common route is to submit a building notice to the council before the work starts.

Loft conversions can add up to 20% onto the value of your home according to Nationwide Building Society. They are typically cheaper than other home extensions in relation to the additional floorspace. They can also quickly add space to your property without being too disruptive – you shouldn’t need to move out while the work is going on.

Still looking for answers? Get in touch with our specialists.

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Speak to our Loft Conversion Specialists

We are happy to discuss your extension project and answer any questions you have. Please leave your details and a message below or alternatively contact us by phone.

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