Basement construction Belsize Park
There is not a lot of room in Belsize Park to create an extension for your home, and getting approval to add another storey to a house can be extremely challenging and time-consuming. But that doesn’t mean you are out of options. Room Below specialize in basement construction in Belsize Park that enables you to get the additional living space you need by building down.
Get In Touch With Us Today.
T: 01923 228521
Basement Construction in Belsize Park: The Common Sense Alternative
What you’ll see if you stroll through Belsize Park are a lot of beautiful, spacious homes from different eras. What you won’t see are many – if any – outward or upward extensions. That’s because it’s very difficult to gain approval for such a project. So, if you need more space to accommodate your changing lifestyle needs, do you have to move?
Fortunately, no. You can keep your beautiful home in Belsize Park and transform the currently underused or unused basement space into an extra bedroom, in-law suite, home office, family entertainment centre or whatever else you have in mind.
Building down will produce a variety of benefits, including:
• Providing you with exactly what you need in terms of new, liveable space.
• A simpler approval process that is more likely to succeed.
• A nice bump in home valuation.
• A simpler, less disruptive construction process than needed for an extension.
• Building down is less expensive than building out or up.

Get In Touch With Us Today.
T: 01923 228521
Basement Construction Services and How They Work
Choose from various services and solutions for basement construction in London to meet your unique needs. You can manage every detail of the process—initial planning, final touches, and everything in between.
Design and Planning
Create a look and a style that perfects your space. Work with our architects and design team to create a space that will blend seamlessly with your needs and the rest of your home. This is all about bringing your vision and practical needs to life with professional creators.
Structural Work, Underpinning, and Regulatory Details
Once your design is approved, you can leave the rest to us. We work closely with you through each step of the process. You don’t have to worry about whether your basement requires underpinning or other structural work. We assess and plan accordingly. We will handle crucial elements such as waterproofing and damp proofing, right up to handling applications and following local building regulations.
Tailored Design Solutions
Your basement construction in London should cater to your unique needs and preferences. Every home and homeowner are different. Get creative, customised solutions that suit your space, lifestyle, and budget. Know exactly what to plan for with transparent pricing and planning processes paired with clear communication each step of the way.
Our Recent Projects
Smith Street
Old Church Street
St Saviours Church
Godfrey Street
Drayton Gardens
Projects Completed
We’ve helped over 250 customers complete the basement renovation of their dreams
Years In Business
We formed in 1992 and have been setting the standard in basment room construction ever since
Years Of Experience
Our team have combined industry experience of over 100 years of basement room design & construction
The Room Below Process
You will find working with Room Below to be a simple, trouble-free process that generally entails 3 steps:
Step 1: Design and Planning
We listen intently to what you want from the basement space, then use your input to create design proposals for you to consider.
Step 2: Approval & Construction
Once you green-light a design, we take care of securing permits and official approval. Once that is done, we prep the basement for the build-out. We prioritise communication in order to ensure everyone is always on the same page.
Step 3: Finishing Touches
The buildout wraps with us applying the finishing touches, checking every detail against the plan and subjecting everything to a rigorous quality control inspection.

Get in Touch
If you need more liveable space than your Belsize Park home currently offers, there’s no need to move. Instead, contact Room Below on 01923 968451 and ask us about basement construction in Belsize Park. If you prefer, you can write to us at info@roombelow.com.