A professionally designed loft conversion in Bromley can increase your property’s value by up to 22% while adding vital living space. As local Bromley specialists, we manage the entire process, from navigating Bromley Council’s specific planning guidelines to completing the build. An attic conversion in Bromley is the most efficient way to enhance your home without the expense and hassle of moving.
Loft Conversions Bromley
Interested in Bromley Loft Conversions? Contact Us Today
What Types of Loft Conversions Suit Bromley Homes?
Bromley features a diverse range of properties, from Victorian terraces to modern detached houses. We recommend the best conversion type for your specific home style and needs.
- Dormer Loft Conversion: The most popular choice in Bromley. A dormer is a structural extension that projects vertically from the slope of the roof, creating a box shape. This adds significant headroom and floor space.
- Hip-to-Gable Loft Conversion: Ideal for end-of-terrace and detached homes. This conversion extends the sloping ‘hip’ roof at the side of your property outwards to create a vertical ‘gable’ wall, maximising the internal space.
- Velux (Skylight) Attic Conversion: The most straightforward and cost-effective option. We fit Velux windows into the existing roofline, requiring minimal structural alteration. This is a perfect solution for a simple attic conversion in Bromley.
Key Takeaways
What it is: A project to turn your unused attic into a functional room like a bedroom, office, or gym.
Why do it: Adds significant space and market value to your property.
Who it's for: Homeowners and landlords in the London Borough of Bromley.
Typical Timeline: A standard loft conversion in Bromley is typically completed within 8–12 weeks.
Have your say…
Testimonials
Case Study: Hip-to-Gable Loft Conversion in Beckenham, BR3
We transformed a cramped attic in a 1930s semi-detached home into a stunning master suite with an en-suite bathroom. The project included bespoke fitted wardrobes and a Juliet balcony. It was completed in just 10 weeks and added an estimated £90,000 to the property's value.
– The Sharma Family, Beckenham

Nicholas Carpenter12/04/2023Trustindex verifies that the original source of the review is Google. Clapham Construction have done a great job on our loft conversion and we are very pleased with how smoothly the project went, and the brilliant loft space that we now have. Paul - thank you especially for guiding us through all the stages before and during the build. Their workmen were hard working from start to finish, efficient, and obviously very skilled. They were also polite, helpful and really tidy. We had great communication by email with their office, and with Paul in person and on the WhatsApp group - thank you. Our family in USA are now looking forward to staying with us in comfort this summer and beyond! Bianca Hamilton16/03/2023Trustindex verifies that the original source of the review is Google. Paul, Dangis and the team are simply top notch. They did such a high-quality job on a tight timeframe and communicated so well throughout. They were a pleasure to work with, handled all elements of the build from start to finish and kept disruption as minimal as they could. Couldn’t recommend them more highly if I tried. Mindy Lee29/01/2023Trustindex verifies that the original source of the review is Google. Thank you Clapham Construction! Your team were friendly, efficient, and highly motivated. The project ran to schedule with effective overlapping of tasks to allow for minimum disruption. Paul kept us actively involved at each stage of the process, so we always knew what was happening when, which was really reassuring. If we ever had a question, he would talk it through with us in person and offer advice without any pressure or expectation. The work is completed to an excellent standard. All the construction workers where kind, considerate, friendly, polite and kept our house as clean and tidy as possible. This took so much of the stress out of living on site during the works with a young son. Even the neighbours commented on how polite and considerate the builders had been. We would highly recommend this team for anyone thinking of undertaking a loft conversion in the future. Shayan Bokhari29/12/2022Trustindex verifies that the original source of the review is Google. Paul, Dangis and their team were excellent given we had some obstacles with the council on design, they accommodated what we required. The work was very professional and communication was on point. We are very happy with our end result and any teething issues they resolved quickl. I would recommend the team to anyone. Thanks again for all your hard work. Laila A29/12/2022Trustindex verifies that the original source of the review is Google. Really lovely team - all professional, friendly and was great to have Dangis and Paul popping in regularly and being on the ball with the project. Happy with our new loft, all work done to an excellence standard, any follow up questions or issues dealt with quickly. Would highly recommend. Thank you very much. Dani Carter25/10/2022Trustindex verifies that the original source of the review is Google. Absolute professionals is the first thing that comes to mind when I think of Clapham Construction service. And there are two further things you need to know about them: they are brilliant at what they do and they are generous in spirit. Throughout our project Paul and Dangis answered our naive questions with warmth and care. They helped guide us at every turn, and almost certainly saved us money by making sure we considered all the options we had before making key decisions. But not just customer care, the building work is also top notch. The build itself was a well oiled process, coordinated with skill. I was initially worried about getting an anonymous loft company I'd never heard of in (after getting 8 different quotes from a variety of places including famous local ones) and being part of the 'box on the roof' brigade. Yet somehow, they have created build magic with some tweaks on 'a little bit of height' here, and 'a little configuration' there. We keep marvelling at the sturdiness and smoothness of the physical build even now, and the army of highly skilled teams they have were a pleasure to host in the house while we worked from home. And finally the most important bit - the money stuff- our Loft extension (including bathroom) was completed on time and more or less on budget. The additional costs were the unforseen - (yikes a victorian chimney needs dismantling!) and a few flourishes that we ourselves added to the mix - (can the door handles be gold?). Any additional build costs were communicated efficiently and immediately. Our experience of Clapham Construction is that they are patient, hugely knowledgable, and detail orientated with a wealth of incredible advice. Don't delay on getting them on your project! Mikey Johns22/09/2022Trustindex verifies that the original source of the review is Google. We spoke to a few companies to quote our dormer loft conversion but were immediately impressed speaking to Dangis & Paul and went with Clapham CS. We’re really happy with the end result which has given us some much needed extra space. Progress was quick, these guys are very experienced and know exactly what they’re doing. They’ll talk you through your plans and give you honest advice at key stages when you need to make a decision, very patient with us too! Would definitely recommend, they’ve done numerous houses in our neighbouring streets too, end results always look great. Maria Luisa McKendry18/09/2022Trustindex verifies that the original source of the review is Google. Highly recommend this company. As first time buyers and first time renovators we couldn't be happier with their service. Paul and Dangis are very professional and thorough, at no times does it feel like corners are cut. They are able to provide genuine advice and guidance while being accommodating ensuring a stress free process. Stuart Williams18/09/2022Trustindex verifies that the original source of the review is Google. Clapham Construction completed our kitchen extension for us. We’re really pleased with the results, and it has changed the whole place. The price was agreed upfront and there were no hidden extras. Good communication throughout the whole process on WhatsApp and Dan showed great building experience. They had the whole team from build, kitchen fitting through to finishing the garden off available in house so made it a lot easier. Thanks guys. Tom Forman05/09/2022Trustindex verifies that the original source of the review is Google. We are delighted with our new loft conversion, Clapham Construction did a great job. They were highly professional, no hidden costs, and with friendly employees who treated the rest of the house with respect. We would not hesitate to recommend them.Google rating score: 5.0 of 5, based on 54 reviews
Interested in a Bromley Attic Conversion? Contact Us Today
How Much Does a Loft Conversion Cost in Bromley?
The cost of a loft conversion in Bromley varies based on the type, size, and specifications.
- Velux Conversions: Starting from £30,000
- Dormer Conversions: Typically between £45,000 – £65,000
- Hip-to-Gable Conversions: Starting from £55,000
Loft Conversion Complete Process
Step-by-step: Free quote → Planning or permitted-development submission to Bromley Council → Structural design & engineer sign-off → 8-10 week build with site visits three times a week → Final inspection, completion certificate & ten-year guarantee.
For more information about costs of loft conversions, use our loft price calculator, and take a look at our in-depth loft conversion cost guide.
We provide a detailed, fixed-price quote after a free site survey.
Get Your Bromley Loft Converted Today
Your Trusted, Local Bromley Experts
We have over 20 years of experience delivering exceptional loft conversions across Bromley and South East London.
- Fully Certified & Compliant: All work adheres strictly to UK Building Regulations (Part L, Part K, and Part B for fire safety).
- 10-Year Structural Guarantee: Every project is backed by a decade-long warranty for complete peace of mind.
- Fully Insured: We hold £5 million in public liability insurance.
- Transparent Process: Our design and build process ensures you are informed at every stage, from initial drawings to final sign-off.
Do I Need Planning Permission in Bromley?
Many loft conversions fall under ‘Permitted Development’ rights, meaning they do not need full planning permission. However, restrictions apply, especially in Bromley’s conservation areas. Our team has extensive experience with the London Borough of Bromley’s planning department and will manage all necessary applications for your project.
View Our Design and Build Process
Check out the work of our amazing teams and what we can achieve in your home
Ready For An Exact Figure For Your Loft Conversions
Book your free on-site survey and receive a fixed-price quotation within 72 hours. Call 020 3950 7957 or email [email protected].
Your Trusted, Local Bromley Conversion Specialists
With over 20 years of experience, we are one of the leading loft conversion companies serving Bromley. Our reputation is built on delivering exceptional quality and a transparent, professional service.
If you’d like more information on loft conversions in Bromley and how we can help you, please don’t hesitate to contact us today. Our team have an incredible amount of knowledge within this specific area so regardless of what you’re looking to achieve with your loft conversion and the style of home you have, we can make it happen. Simply call us today on 0203 950 7957.
View Our Work in Bromley
Ready to Transform Your Bromley Home?
Your new living space is just one conversation away. Contact our team to discuss your loft conversion or attic conversion in Bromley and book your free, no-obligation site survey.

