We have been working in this industry for a decades, we know how to create house extension designs to build bespoke loft conversions and extensions in London. Over that period we have developed our design and build process to help simplify the process and share with our clients. These maps are used as a reference in the industry, will always be bespoke to you and your project, but are a good base for you to understand the process
Design And Build Process
Design & Planning
Transform Your Loft Into Beautiful Usable Space
Trusted London loft conversion specialists with over 20 years' experience, a free consultation, and a 10-year warranty on structural work.
A Typical Loft Design and Build Process

Design and Build Process London
A loft conversion, if built by experts, often follows a best practice pattern of building phases for Loft Conversions in London. We have displayed the ‘standard’ build process here for you. We call it standard because Clapham Construction service offers a bespoke house extension designs service and never one ‘off the rack’. Each house if different, so is the specification and the needs of each of our clients also.
Wherever possible we bend, break and swap these phases to suit the circumstances. So, for example, if you’re expecting a baby mid-way through the build we will often focus on the structural works and making the loft weather tight to meet that due date, leaving all the internal works (and less noisy parts) for after the birth. This is why our clients give us great feedback and why we personalise our service. Take a look at the standard phase plan and remember upon your home consultation we will discuss what your own phase plan will look like.
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A Typical Extension Design and Build Process
Design and Build Process
House Extension Designs
House extensions in London are normally more complex and longer builds. Having said that they too often follow a best practice build process. Here is ours, developed over 20 years of building these structures.
There are additional elements, such as, the building of a temporary kitchen that may take place in the midst of these works or landscaping that may be included in your specification for your particular build. As with all types of builds and projects, your plan will be bespoke, and it will also be adaptable throughout the works.
So as we progress we will meet you on-site and adapt where necessary the daily planning.

Design and Build Process London
As you may have gathered from reading a little about Clapham Construction Service, we like to keep things simple, clear and straightforward. We have laid out the steps involved in the design process here for you here and we guide you through this every step of the way. In addition, as it’s a guide its changeable, meaning our processes are all adaptable to you and flexible enough to ensure you get what you need for our service.
Building a loft conversion or house extension in London is simple for us, we are loft conversion specialists, but it’s often your first time, so our service is personal to each of you. Having said all that, take a look at our 7-step guide that we have developed over the years to support our clients.
Trustworthy Service Backed by Real Customer Experiences
What Our Clients Say
"I had a loft conversion completed by Clapham Construction Service earlier this year and couldn't be happier with the results. Paul and Dangis were on site every day and kept me fully informed throughout the entire process. Their communication, professionalism, and attention to detail were outstanding. I felt completely confident in their work from start to finish. Highly recommended for anyone looking for reliable and high-quality building services."
— Joel Prime
Industry Recognition & Quality Assurances
20 Years' Experience
Specialised in London loft conversions
10-Year Warranty
Covering all structural work
£10M Public Liability
Insurance for complete protection
We are proud to serve areas including Loft Conversions Balham, Loft Conversions Battersea, Loft Conversions Beckenham, Loft Conversions Bromley, Loft Conversions Dulwich, Loft Conversions Merton, Loft Conversions Streatham, Loft Conversions Wandsworth, Loft Conversions Wimbledon, Loft Conversions Dartford, Loft Conversions Fulham, Loft Conversions South London, Loft Conversions East London, Loft Conversions West London, Loft Conversions London
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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. We do this by being open and honest from the start, right up to the finish. So if you want to get some information or want some advice about a potential project, just give us a call or drop a line.


