London's leading...

Basement Conversions London

At Detailed Planning, we pride ourselves on providing you with an expert, reliable and professional service. Every client and every project are treated with excellent care to ensure the success of your project.

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Basement Construction in London

A basement conversion can create a range of possibilities within your home, from a simple spare room to an entirely new storey. It is also ideal for homeowners looking for more room without compromising on their outdoor space.

Additionally, depending on the scale of your project, planning permission may not be required. We can advise on this process and the different options that will affect your planning application.

Many people assume that their basement can’t be used as a suitable living area yet our expertise allows us to design warm, light-filled basement conversions that add depth and character to your home.

Established in 2011 we have been providing architectural services for all types of residential projects, working alongside homeowners, builders and developers. So, if you’re a homeowner looking to open up your home and create more room, or if you are a developer looking to maximise property potential, we will ensure your needs are met.

Excellent service. Paul is very thorough and took his time to make his decisions and explain them to me. He is friendly and helpful and has a 'can do' attitude.
Via Checkatrade

Would definitely recommend for any detailed drawings required, we got them in late in the day to provide building regs drawings, were really efficient in completing within the required timescales and went into a lot of detail to make sure everything was right.
Via Facebook

I felt in very capable hands and expertly advised. I'd highly recommend Detailed Planning. Our new loft conversion has maximised the space available to us.
Via Houzz

Basement Design, Planning and Build Services

Understanding Your Project Goals

When we begin, we'll take time to understand your brief, you may also have ideas of how the end product will look. We'll take this into consideration but also consider costs, planning constraints and buildability. There's no point designing something that can't be built!

Striving to Create Quality Spaces

Our number one goal is to create spaces that meet requirements and go beyond the expectations of our clients. We love to hear that our clients are enjoying their new home and this gives us the energy to go on.

Believe In Quality Design for Everyone

Good design should not be limited to some Architects only. We are here to provide excellent architectural environments to all, at a more realistic cost compared with some architect fees.

Pushing Technical Detail

Every project is unique and ensuring it is buildable should be considered from the outset. Should we provide technical drawings, we’ll make sure risks on site are reduced by considering all parts of your project. This should lead to overall cost savings and minimised delays.

High Planning Success Rate

We never take on a project where the principle of the development seems unlikely to be approved. During the design, we’ll use our knowledge and check planning policies to give your application the best chance of success. We have worked with many authorities and understand how planning applications are decided.

Flexible Design Approach

We are not fixed to one design style; therefore we can be used for realist extension design to ultra contemporary. We will listen to your brief and design a bespoke extension meeting your needs.

Free Quote

Want to talk about your project? We will always check your enquiry to ensure there is a reasonable chance of success.

Our quotes are free and we can provide free office consultations should your project be viable.

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Our Process

1. Design

Whether your family is growing, and you need an extra bedroom, or you want a new bright modern open plan living; we can help find a solution to maximise your space. Here at Detailed Planning, we have a team of trained designers that are specialised in creating amazing spaces for all types of briefs. We understand the cost of developing a property, so we’re sensitive to our costs and guidance. We aim to help you stretch your money enough to get the best results!

2. Get Approved

We are experts at obtaining planning consent for a loft conversion. If your house benefits from permitted development rights, we’ll complete the necessary drawing and documents to demonstrate your proposal falls within guidance and the permitted cubic allowance. Should your loft conversion require planning consent, we can give you the best chance of planning consent by acting as your agent throughout the process.

3. Technical

This is the stage where the detailed technical drawings are carried out by our design team. We believe in providing extra detail so your builder construction your project with the quality it deserves. Remember, in order for a project to go accordingly, having a good, detailed set of drawings is crucial.

4. Ready. Set. Go

At last! Your dream home is now ready to go under construction! This is all very exciting and you now have all the relevant drawings to hand. At this point of the project, we provide a continued support service, so feel free to call us whenever you like. All that’s left to do now is grab a cup of tea and relax!