Loft Conversions London


Interested in Loft Conversions? Contact Us Today


Over the years we have carried out hundreds of home renovation projects, especially loft conversions in London.

We are proud of every project we work on to turn disused spaces into beautiful rooms for our clients and families.

In London loft conversions are popular, where space is at a premium and still a family city, more space is often required.

Perhaps you want that spare bedroom for guests, a home office or want to develop your property for sale or rent.

Whatever you’re looking to do with your attic conversion in London, Clapham Construction Service has already done it for someone else and we can do it for you too.

Remember these are fully completed and decorated, to give you an idea of space, quality, and possible finish, but every house is unique and so is every building service we provide.


Loft Conversion Complete Process

We manage the design and build for you, planning permission, structural design, building control and your project manager will be on your site almost daily to oversee the works and keep you updated.

Quality Craftsmanship

Our works are warrantied, but they will stand much monger than that. We are builders primarily and our teams are experts with quality on our mind – you will get weekly inspections by the owner to ensure we deliver.

10 – Year Warranty On All Loft Conversions

Exactly what it says. We provide you with a warranty to cover you and your home for any defect from our works so you don’t have to worry. In addition you get an independent certificate by the regulators confirming that our works meet the approved building standards.

Attic Conversions Add Value

Getting A loft or attic conversion with us can add up to 25% to the value of your home, making it one the best investments you can make.

Interested in an Attic Conversion? Contact Us Today


In London no two properties are alike and neither are their owners. The same can be said of the lofts in London, however having built hundreds, we at Clapham Construction Service, understand a thing or two about them. Though the finish may be different for every client the structure follows a few set designs.

We have laid them out for you here to gain a better understanding. During the free home consultation we will help you choose the right one for you and your home.


There are many different types of conversion that can be built on your property and we have all the information you need right here. From mansard conversions to dormer conversions, there’s something for everyone! Whether it’s an extra bedroom or a place for guests to stay when they visit, our team will work with you every step of the way so that you get exactly what you want from your new space. We offer free consultations and estimates so why not give us a call today? You won’t regret it!

View Our Design and Build Process

Check out the work of our amazing teams and
what we can achieve in your home

Want some friendly advice?

Contact Us For Advice On Attic Conversions

Our clients love us, because we provide honest and straightforward information and advice, no sales pitch, no hassle! We are trusted because we aim to satisfy all of our clients, not just build a job for profit. Only by being open and honest from the start, right up to the finish, can we make sure everyone is happy. We try to keep to South London, and we have carried out loft conversions from Wimbledon to Dartford.  If you want to get some information or want some advice about a loft conversion in London, just give us a call or drop a line. You can check out our loft conversion guide for more information on loft conversions.

Interested in a Loft Conversion? Contact Us Today


What are the different types of loft conversion?

The most common types of loft conversion are Skylight Conversions, Two Window Dormer, Dormer Conversion, Hip to Gable & Rear Dormer, Hip to Gable, L – Shaped Mansard, L – Shape Dormer, Mansard Conversion

Do you need planning permission for a loft conversion?

Generally speaking, you can build a loft conversion under permitted developments, however, if you own a listed building or property in designated areas the laws are different.

How much value does a loft conversion add?

Loft conversions can add up to 25% value to your home depending on how much space you add.

Are there laws around stairs for loft conversions?

If you are planning to install stairs for your loft conversion there are certain rules and regulations, that have to be followed.


Loft Planning Permission

Read our guide on planning permission for lofts in London which includes information about party wall agreements.

Loft Conversion Stairs

Depending on what type of property you have will determine the type of stairs you have in your loft conversion.

Loft Conversion Costs

There are a variety of options when it comes to your loft conversion you can read our guide on loft conversion costs.

Loft Conversion New Builds

If you have recently moved into a new build property you can still get a loft conversion, read our handy guide.

Interested in a Loft Conversion? Contact Us Today


There are many different types of rooms that you can convert your loft into, depending on your needs and preferences. Some popular options include bedrooms, bathrooms, home offices, playrooms, and even home gyms.

You can also turn your loft into a multi-purpose space that can be used for a variety of activities, such as a living room, dining room, or even a home theatre. Additionally, many people choose to convert their lofts into guest rooms, which can be a great way to provide extra space for visitors or renters.

Whatever type of room you choose to convert your loft into, Clapham Construction ensures that the space is properly insulated, ventilated, and finished to meet your specific needs and preferences.


Loft Office

Office loft conversions are typically bright, spacious, and filled with natural light, providing a comfortable and productive work environment. Read here for all information on loft offices.

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Loft Bedrooms

Loft conversion bedrooms are often cosy, private retreats, with slanted ceilings and skylights that create a unique and charming atmosphere perfect for a peaceful night’s sleep.

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New build houses, detached houses, semi-detached houses, and terraced houses are all eligible for a loft conversion, as long as they have a pitched roof with enough headroom and space for a staircase.

  • New build houses are often designed with the potential for a loft conversion in mind, and may already have the necessary structural support in place.
  • Detached houses, semi-detached houses, and terraced houses are also commonly converted, as they often have a pitched roof and enough space for a staircase.

However, the suitability of these houses for a loft conversion will depend on the specific design of the house and the amount of headroom and space available in the attic. A professional assessment by Clapham Construction may be needed to determine the suitability of these types of houses for a loft conversion.


New Build Houses

Read on to find out more about how new build houses can benefit from a professionally designed and executed loft conversion, adding valuable space and increasing the overall value of the property.

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Detached Houses

Find out more about the potential of detached houses and how a well-planned and executed loft conversion can transform them into spacious and functional living spaces.

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Semi-Detached Houses

Semi-detached houses offer great potential for a well-designed loft conversion, Read our guide on semi-detached loft conversions here.

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Terraced Houses

A terraced house loft conversion can provide many benefits beyond just added space and increased value. It can also improve the overall functionality and layout of the house.

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We operate across the whole of South London and can build lofts in the locations listed below.

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