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Basement Conversion Specialists: Belsize Lane

Professional building covering Belsize Lane, NW3. Refurbishment company in Hampstead - fast response, quality work.

Only 0.5 miles from Belsize Lane

Book a basement survey Call 07459 345456

4.9

Google Rating

14+

Years Experience

2hr

Response Time

🏠

Premium Property Image

Free Quote

No obligation assessment for your project

Why Choose Us for Basement Conversion?

When you need basement conversion in Belsize Lane, you want a local team you can trust. Unlock hidden space beneath your home with a professionally converted basement. As a trusted refurbishment company in Hampstead, we've been serving Belsize Park families for over a decade. Victorian terraces often have existing cellars perfect for conversion into usable living space.

No garden space lost

Adds significant value

Creates flexible space

Often no planning needed

Premium waterproofing

10 year guarantee

Startingfrom £50,000 for basement conversion

How It Works

Get in Touch

Call us or request a quote online. We'll discuss your basement conversion needs.

Free Assessment

We'll survey your Belsize Lane property and provide a detailed, no-obligation quote.

Expert Work

Our certified team completes the work to the highest standards.

Quality Guarantee

10 year waterproofing guarantee. Your satisfaction is guaranteed.

Belsize Lane

Belsize Park, NW3

Local to Belsize Lane

We're based at Unit 3, Palace Court, 250 Finchley Road, just 0.5 miles from Belsize Lane. That means no long waits – we can be with you quickly when you need us.

0.5

Miles away

~15

Min drive

2hr

Response

About Belsize Lane

Area: Belsize Park, Camden

📮Postcode: NW3

🏛️Nearby: Belsize Park Underground, Primrose Hill

🚇Transport: Belsize Park Underground, Swiss Cottage Underground

Get Directions from Our Office

Why Choose Us?

We're committed to delivering exceptional service with complete peace of mind.

Only 0.5 miles away

We're local to Belsize Lane

Basement Waterproofing Association

Industry accredited

10 year waterproofing guarantee

Work guaranteed

Fully Insured

£5m public liability

Basement Conversion Reviews in Belsize Park

See what our Belsize Park customers say about our basement conversion services.

"Professional service from start to finish. The basement conversion work on our victorian terrace was completed beautifully. The team took real pride in their work."

David C.

Belsize Park • January 2026

Basement Conversion

"Excellent basement conversion work on our victorian terrace. The team was professional, tidy, and completed the job to a very high standard. Highly recommended for anyone in Belsize Park."

James C.

Belsize Park • October 2025

Basement Conversion

"Used HAMPSTEAD RENOVATIONS for basement conversion and couldn't be happier. They arrived on time, explained everything clearly, and the price was fair. Will definitely use again."

Alexander G.

Belsize Park • November 2025

Basement Conversion

4.9

Average rating from 200+ Google reviewsView all →

Basement Conversion FAQs for Belsize Lane

Common questions about basement conversion in Belsize Park.

We use cavity drain membrane systems with sump pumps, providing guaranteed waterproofing that manages any water ingress.

Popular uses include home offices, gyms, cinemas, playrooms, guest suites, and wine cellars. Building regs apply for habitable rooms.

Simple conversions of existing cellars often don't need planning. New excavations typically require permission and structural approval.

Yes, Belsize Lane is in our core service area. We're based at Unit 3, Palace Court, 250 Finchley Road, just 0.5 miles away, so we can respond quickly to calls in NW3.

From our base at Unit 3, Palace Court, 250 Finchley Road, we can typically reach Belsize Lane within 30-45 minutes in normal traffic. For emergencies, we aim for a 2-hour response.

Still have questions? We're here to help.