Loft Design Service


  • Specialist Loft Conversion Builders in London
  • 20+ Years of Experience
  • Bespoke Loft Conversion Designs
  • 10 Year Guarantee
  • Fully Compliant with the Latest Building Regulations
  • £5 Million in Insurance Cover

Looking For A Loft Designer? Contact Us Today

Why Choose Clapham Construction for Your Loft Design

The Clapham Advantage: Design to Build

Welcome to Clapham Construction Service, your one-stop solution for loft conversions in London. When we say we’re with you every step of the way, we truly mean it. From the moment you make that first call to us, right through to the final touches on your dream loft, our team is committed to delivering exceptional service. Our integrated design-to-build approach ensures a seamless transition from vision to reality, removing the typical hassles and hurdles you might face when dealing with multiple service providers. This streamlined process not only ensures that your project is executed to perfection but also delivers it in the most cost-effective way possible.

Completed interior of loft conversion

The Role of a Loft Architect in London

Why Clapham Construction is Your Ideal Loft Architect

In London, a well-designed loft can make all the difference. That’s where Clapham Construction comes in. As a leading Loft Architect in London, we are uniquely positioned to bring your loft conversion dreams to life. Unlike traditional architects who might offer dazzling designs without a thought for your budget, we focus on practical, cost-effective solutions tailored to your needs. Our in-house architects and design team work closely with our construction experts, ensuring that your project is not only aesthetically pleasing but also structurally sound and financially feasible. This integrated approach puts all the responsibility in one set of capable hands—ours—guaranteeing you peace of mind and value for your investment.

Our Comprehensive Loft Design Service for £1000

What’s Included

Our Loft Design Service is comprehensive and designed to cover all bases. For a flat fee of £1000, here’s what you can expect:

  • Architectural Measurement Survey: Our team of experts will visit your property to conduct a detailed measurement survey. This forms the foundation of all future design work.
  • Existing Plans: We’ll provide you with a set of existing plans for your property, offering a clear picture of the current layout and how best to utilise the available space.
  • Proposed Plans: Our design team will create a full set of proposed plans for your loft conversion, paying close attention to your specific requirements and aesthetic preferences.
  • Amendments: Your satisfaction is our priority. We offer unlimited amendments to the drawings until you’re completely happy with the design.
  • Submission: Once you approve the plans, we’ll handle the submission to the local authority for project approval, making the process hassle-free for you.

No Hidden Costs

At Clapham Construction, transparency is not just a buzzword; it’s a principle we live by. When we say our comprehensive design service comes at a flat fee of £1000, we genuinely mean it. There are no hidden costs or extra fees. What you see is what you get—a top-tier, all-inclusive service at an unbeatable price.

dormer loft conversion london

View Our Design and Build Process

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

The Loft Design Process

Initial Site Survey

Your journey with Clapham Construction begins with an in-depth site survey. Our team will visit your property to assess its suitability for a loft conversion. During this visit, we consider various factors such as structural integrity, available space, and your specific requirements. This initial assessment allows us to provide a tailored solution that aligns with your vision, budget, and timeframe.

Creating and Amending Designs

Once we have all the necessary information, our skilled designers get to work crafting preliminary plans. These plans are not set in stone; we offer amendments at no extra cost to ensure that the final design meets your expectations. This process can take between 1 to 5 weeks, depending on the complexity of the project and any changes you might request.

Submission and Approval

Upon your approval of the final design, we move on to the submission phase. This involves presenting your plans to the local authority for planning permission or permitted development rights. With an average approval time of around 8 weeks, our team stays on top of the process, making any required changes and ensuring a smooth approval process.

Why Secure Planning Permission Even If You Don't Build Right Away

Boost Your Property Value

In London’s competitive property market, having planning permission for a loft conversion can be a significant asset. It demonstrates the untapped potential of your property, making it more appealing to prospective buyers. The approval essentially serves as a seal of quality and potential, elevating your property’s market value.

Ease the Sales Process

Properties with approved loft conversion plans often attract serious buyers, reducing the time your property spends on the market. The planning permission acts as a stamp of approval, reassuring buyers and speeding up the sales process.

loft conversion - sky light installation
loft extension rustic look - loft conversion inspiration

Clapham's Integrated Approach to Loft Conversion Design and Build

Cost-Efficient Design

One of the distinct advantages of choosing Clapham Construction is our integrated approach. While traditional architects may offer designs without considering the build costs, our team of in-house architects works in tandem with our construction experts. This ensures a design that is not only aesthetically pleasing but also cost-efficient, offering you the best value for your investment.

Single Point of Responsibility

Our design-to-build service means that all aspects of your project, from the initial sketches to the final construction, are handled by one team. This eliminates the complications that can arise when dealing with multiple service providers and gives you a single point of contact for all your needs. The result is a smoother process and a loft conversion that meets your exact specifications.

Looking For A Loft Architect? Contact Us Today

The Value of a Well-Designed Loft in London

Enhancing Liveability

A well-designed loft doesn’t just add space; it enhances the quality of your living environment. Smart design solutions, such as optimising natural light and creating multi-functional spaces, contribute to a more comfortable and enjoyable home.

Increasing Property Worth

In London’s competitive property market, a professionally designed loft can significantly increase your property’s market value. It’s not just about added square footage; it’s about improving the functionality and aesthetic appeal of your home, making it more attractive to potential buyers.

completed loft conversion master bedroom with stairs
home insurance for loft conversions

Navigating Loft Conversion Regulations and Permissions

How We Make It Hassle-Free

Dealing with planning permissions and building regulations can be daunting. At Clapham Construction, we simplify this process for you. Our all-inclusive service includes submitting your plans to the local authority and making any necessary amendments, ensuring that your project is compliant with all regulations.


Optimising Space and Functionality in Your Loft

Smart Design Solutions

A loft conversion is more than just an added room; it’s an opportunity to enhance your living space. Whether you’re looking for a new bedroom, home office, or home cinema, our design team will provide solutions that maximise functionality without compromising on style.

Additional Benefits of Using Our Loft Design Service

You’re Not Obligated to Use Our Construction Services

Once the design phase is complete, you’re under no obligation to use our construction services. However, our integrated approach and track record of excellence often make us the first choice for those looking to move forward with their loft conversion projects.


You Have Up to Three Years to Begin Work

After securing planning permission, you have up to three years to commence construction. This gives you the flexibility to proceed at your own pace, knowing that the initial legwork has been taken care of.

Instruments prepared for measurements in house

Have your say…


Nicholas Carpenter
Nicholas Carpenter
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 Hamilton
Bianca Hamilton
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 Lee
Mindy Lee
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 Bokhari
Shayan Bokhari
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 A
Laila A
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 Carter
Dani Carter
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 Johns
Mikey Johns
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 McKendry
Maria Luisa McKendry
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 Williams
Stuart Williams
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 Forman
Tom Forman
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.

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 Today For Loft Design & Build

Take the First Step Towards Your Dream Loft Conversion

At Clapham Construction, we’ve designed our loft conversion service to be as hassle-free as possible. Once you’ve secured planning permission, you have up to three years to commence work. And remember, after we’ve completed the design phase, you’re under no obligation to use our services for the actual conversion.


Ready to Elevate Your Lifestyle?

We’re committed to delivering a seamless, stress-free experience from design to build. If you’re ready to transform your home, we’re just a phone call or a click away.

Contact Us

Phone: For immediate assistance or to schedule a consultation, call us today at 0203 950 7957.

Email: Prefer to write? Send us an email at [email protected].

Google Rating
Based on 73 reviews