Looking for a trusted loft conversion company in South West London?

At The Loft Room, we help homeowners unlock the hidden potential in their properties by transforming unused lofts into stunning new living spaces. Whether you’re creating a master suite, home office, guest bedroom, children’s room or self-contained studio, our expert team manages every stage of the project from design through to completion.

Based in Teddington, we specialise in South West London loft conversions including Richmond, Kingston, Twickenham, Hampton, Chessington, Teddington, New Malden, Worcester Park, Wimbledon, Sutton, Surbiton and surrounding areas across Surrey, Middlesex, Berkshire and Hampshire.

South West London is home to some of the UK’s most desirable Victorian, Edwardian and 1930s properties. These homes often have exceptional loft conversion potential, allowing families to gain valuable living space without sacrificing garden space or facing the cost and stress of moving.

Our team understands the unique character, planning considerations and structural requirements of homes across the SW, TW, KT and SM postcode areas, ensuring every conversion complements your property’s original style while adding practical living space.

Get in touch for a free no obligation quote


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Alex Moon profile picture
Alex Moon
28 September 2026
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The loft room team were great. John was very respectful, and kept us informed on progress. Going the extra mile to make our new space amazing. They really managed to maximise the floor space to create a great sized master bed and en-suite.
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Calum Millar
26 September 2026
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Recently had a dormer loft conversion completed by Ash and Alfie of The Loftroom. From design all the way through to finishing the construction the team have been great. Quality of the work is outstanding, kept informed and updated all throughout the build, and always consulted about the specifics. Highly recommend.
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Chris Talbot
25 September 2026
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We are delighted with our new loft conversion by The Loft Room. The whole process went incredibly smoothly, from the planning stage all the way through to decorating. A huge thank you to Vio, who led the team on our project. Vio and the team’s hard work and dedication has transformed our house. Vio kept everything running on track, maintained a high standard of work, and was always a pleasure to deal with. He and his team treated our home with respect and made sure the details were done right. And also, a special mention to all in the office whose excellent communication kept us in the loop throughout. We would heartily recommend The Loft Room to anyone looking to do a loft conversion. Thanks guys!
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Sarah Lister
22 September 2026
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We are delighted with our new loft space! Our team leader, Mihai, was fantastic and kept us informed about progress throughout. Everyone who came to work on the space was friendly and communicative, and gave us advice about what might work best. Together, the team created a superb space with two bedrooms and a bathroom which are all spacious and finished to a very high standard. Mihai took time to make sure that everything was finished as we wanted it to be and went the extra mile to ensure downstairs where they had broken through was finished and integrated with the existing decor. The office team at The Loft Room were very helpful in keeping us up to date and checking in to make sure that we were happy with how everything was going. It made such a difference using a company who do loft conversions day in day out as it meant that everything ran smoothly, the project was managed for us and the build ran to the time scale presented to us from the start. We would highly recommend The Loft Room to anyone who is thinking about creating a new space.
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Simon Newell
15 September 2026
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We honestly couldn't recommend The Loft Room highly enough. Our relationship with them actually started around three years ago when they first came out to quote for our loft conversion. We weren't ready to go ahead at the time, but when we finally decided to push the button this year, The Loft Room were still the company we wanted to use – and we're incredibly pleased that we did. This was a significant project, creating an entirely new top floor with two bedrooms and two en-suites, all while we continued living in the house as a large family. From the very beginning, The Loft Room had a genuinely friendly, family-company feel. Everyone we dealt with seemed to care about the project and about making sure we were happy, and they were very conscious throughout that this wasn't just a building site – it was still our family home. A very special mention has to go to Jamie and Jared, who carried out the build. They were absolutely fantastic. They worked incredibly hard, were friendly, considerate and easy to have around, and we built a really good relationship with them over the course of the project. Jamie's workmanship and experience were obvious from the start. He constantly kept us involved, asked questions rather than making assumptions and made sure we were happy with how things were progressing. Communication was excellent throughout. With any building project of this size there are inevitably going to be challenges, changes or occasional delays. For us, the important thing was how these were dealt with. Jamie was always upfront, explained what was happening and kept us updated, so there were never any nasty surprises. If something needed sorting, it was sorted. That made a huge difference, particularly as I work from home and we were living through the entire build as a family. Jamie and Gared were incredibly respectful of that and did everything they could to minimise the disruption. Most importantly, we absolutely love what they've created. Turning what was previously unused loft space into two fantastic bedrooms and two en-suites has completely transformed the house. The quality of the workmanship is excellent and, looking at the finished result, we feel we've had really good value for what was a major investment in our home. It probably says everything about our experience that after months of having Jamie and Jared here every day, we actually miss having them around! I work from home, so it's genuinely strange not having the daily chats anymore. A really positive experience from the first conversation three years ago right through to completion. We'd happily recommend The Loft Room to anyone considering a loft conversion. A huge thank you to the whole team – and particularly Jamie and Jared – for everything you've done for us.
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Ben Chadwick
22 August 2026
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We have just had our loft completed by the loft room. They were really easy to work with, took care of all the paperwork. They were great at communicating all the stages and their response time was excellent. Adrian was our builder and he was fantastic. Super thorough, reliable, fast, tidy and often gave us suggestions when we were unsure. The whole project was finished in about 6weeks! We wouldn’t hesitate to recommend The Loft Room to anyone. Many thanks!
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Ken O'Neill
19 August 2026
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We are so happy we decided to go ahead with The Loft Room. Everyone we met from our initial consultation with Paul to Lulian and his team and Helen and Melissa in the office have been great. We were especially impressed with the hard work of Lulian and his team even through the heatwave. They were friendly and professional and always ready to answer any questions we had. Thanks to Lulian for suggesting bigger Velux windows - they are amazing! All the trades involved were great - we will definitely use them again in the future. The work was completed on time and we are really happy with it. We would certainly recommend The Loft Room.
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jasmine zohdy
17 August 2026
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We used the loft room for our loft extension and are very pleased with the results. We were lucky enough to have Adrian and Andre build the dormer, the whole experience was excellent from start to finish. The work was completed incredibly quickly, yet the quality remained consistently high throughout. Adrian brought great ideas to the project that genuinely improved the final design, and he kept everything neat and tidy every single day. All the trades they works with — electrician, roofer, plumber and more — were equally reliable and skilled. There were no delays at any stage; each team arrived exactly when needed and kept the project moving smoothly. The administration side Helen and Mellisa was also superb, with clear updates and communication about progress and next steps. A very professional service all round.
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Amy Dobson
6 August 2026
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Off the recommendation of friends we engaged the Loftroom to refresh and extend our existing loft conversion, adding new insulation, skylights, a new shower room and additional bedroom. We have never done major work to a property before so benefited greatly from loft room supporting us start to finish with planning, designs and all the various trades needed. Our team lead Marius was excellent from start to finish. Him and his team were incredibly hard working, working quickly and to a very high standard. We were really impressed especially given they worked through multiple heat waves !!Their advise and guidance during the build was invaluable (see skylight in shower room!). We wouldn’t hesitate to recommend Marius and the wider loft room team (who were very supportive every step of the way) to anyone looking to complete a loft conversion or improve an existing one.

About The Loft Room

The Loft Room is a family-run business founded and now managed by two expert carpenters with over 30 years’ experience in the industry and hundreds of bespoke loft conversions in London and the South of the UK under their belts.

Most of our work comes through recommendations, which we’re really proud of. Our customers genuinely love what we do, and we’re honoured to have received over 350 consecutive 5-star Google reviews from happy clients. That kind of consistent feedback is something you don’t see every day in our industry, and it speaks volumes about the care and standards we bring to every project.

It’s not just our customers that love our work. Our projects have also been featured in leading media publications including Luxury Lifestyle Magazine, House Beautiful, 25 Beautiful Homes, The Art of Design Magazine, and I-Build Magazine – further acknowledgment of the quality of design and expert craftsmanship that goes into our projects.

For further information about us and our loft conversion process, visit the links below:

Happy SW London customers

Customer Stories from South West London

At The Loft Room, we always strive to go above and beyond for our customers. We’re proud of the loft conversions we’ve project managed and are pleased to share a selection of our work, including some of the best loft conversions in South West London.

Why South West London homeowners choose us?

We strive to make the entire process as seamless and hassle-free as possible, from initial contact right through to the finishing touches. Our focus is to deliver a loft conversion that you truly love, suits your requirements, and adds value for years to come.

What set us apart?

  • Bespoke design approach – At the planning phase, we’ll collaborate closely with you to design layouts and storage options that suit your lifestyle, maximise space, and act as a natural extension to your home.
  • Transparent pricing – No hidden extras. Our prices are clear and set out to you before any work begins so you always know where you stand. We manage all payments through one account for clarity and simplicity.
  • We’re perfectionists – We leave no stone unturned, carrying out regular quality inspections at every stage. This ensures every detail is completed to the highest standards, while keeping your home as tidy and well-managed as possible throughout the process.
  • Outstanding customer service – A large percentage of our work comes via recommendations and returning clients, reflecting the strong relationships and trust we’ve built over the years.
  • Friendly, supportive team – Our team is available to support you at every step, offering expert guidance and quick answers whenever you need them.
  • 10-year guarantee – Invest in your home with confidence knowing our 10-year warranty fully covers the quality of our craftsmanship.

Get in touch for a free loft conversion consultation

If you’re considering a loft conversion in South West London, including Richmond, Teddington, New Malden & more, fill out our form today and we’ll be in touch asap to discuss your plans and provide a free, no-obligation quote.


How much does a loft in South West London cost?

A question often asked by homeowners is about the average cost of loft conversions in South West London. While every project is unique, loft conversions in South West London typically range from £35,000 – £100k+ depending on several factors.

Factors impacting the final cost include the type of conversion, the size and structure of your property, planning requirements, and the specification of finishes you choose. For example, a simple rooflight conversion will generally cost significantly less than a larger dormer or hip-to-gable conversion with an en-suite bathroom.

At The Loft Room, we provide clear, detailed quotations with no hidden surprises, so you’ll know exactly what’s included before any work begins. Our experienced team can guide you through the options available and help you find the most cost-effective way to maximise the space and value of your home.

Cost of a loft room in SW London

Planning permission & building regulations

Many loft conversions in South West London fall under Permitted Development Rights, meaning planning permission often isn’t required. However, requirements can vary depending on your property type, location, and whether you fall within a conservation area or article 4 direction.

Across South West London, different London borough councils such as Richmond upon Thames, Wandsworth, Kingston upon Thames, Merton, Sutton and Hounslow each have their own planning considerations and local guidance, which we take into account from the very start of your project.

Regardless of planning status, all loft conversions must fully comply with Building Regulations to ensure structural safety, fire compliance, insulation standards, and overall build quality.

We manage the entire process on your behalf, including:

  • Planning applications (if required) with your local London borough council
  • Building regulations approval and inspections
  • Party wall agreements with adjoining neighbours
  • Liaising with local planning departments throughout the project

Our experience working across South West London means we understand exactly how different councils assess loft conversions helping to streamline approvals and avoid unnecessary delays.

FAQs

Most loft conversions in SW London take between 8 and 12 weeks to complete, depending on the complexity of the project. Larger or more bespoke designs may take longer.

Many properties in South West London, including Victorian and Edwardian terraces, are well suited to rear dormer loft conversions. Semi-detached and detached homes may also benefit from hip-to-gable or L-shaped dormer conversions, depending on the roof structure.

Many loft conversions in South West London can be completed under Permitted Development rights, meaning planning permission is not usually required. However, all loft conversions must comply with Building Regulations to ensure the work is safe and structurally sound. Larger extensions, mansard loft conversions, properties in conservation areas, or listed buildings may require planning permission. During your consultation, we will advise on exactly what approvals your project will need.

In most cases, no. The majority of our clients remain in their homes throughout the construction process. We work hard to minimise disruption and keep your home clean, safe, and functional.

Yes. A loft conversion is one of the most effective ways to increase the value of a property in South West London. While every home is different, a well-designed loft conversion typically adds 10–25% to a property’s value, particularly when it creates an additional bedroom and bathroom.

In areas such as Wimbledon, Richmond, Twickenham & Teddington, where space is at a premium, loft conversions often deliver particularly strong returns. A rear dormer loft conversion that adds a master bedroom with an en-suite can be especially attractive to buyers and families looking for extra living space.

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Loft conversion areas we cover
Loft conversion areas we cover