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Basement Conversion Specialists: College Crescent

Your local building specialists, serving College Crescent and NW3. Leading refurbishment company in Hampstead.

Only 0.4 miles from College Crescent

Get a basement quote 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?

Some mansion blocks have basement potential depending on building configuration. Unlock hidden space beneath your home with a professionally converted basement. Our College Crescent customers benefit from choosing us as their property renovation company in Hampstead - just 0.4 miles away for rapid response.

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 College Crescent 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.

College Crescent

Swiss Cottage, NW3

Local to College Crescent

We're based at Unit 3, Palace Court, 250 Finchley Road, just 0.4 miles from College Crescent. That means no long waits – we can be with you quickly when you need us.

0.4

Miles away

~15

Min drive

2hr

Response

About College Crescent

Area: Swiss Cottage, Camden

📮Postcode: NW3

🏛️Nearby: Swiss Cottage Library

🚇Transport: Swiss Cottage Underground

Get Directions from Our Office

Why Choose Us?

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

Only 0.4 miles away

We're local to College Crescent

Basement Waterproofing Association

Industry accredited

10 year waterproofing guarantee

Work guaranteed

Fully Insured

£5m public liability

Basement Conversion Reviews in Swiss Cottage

See what our Swiss Cottage customers say about our basement conversion services.

"Excellent basement conversion work on our mansion block. The team was professional, tidy, and completed the job to a very high standard. Highly recommended for anyone in Swiss Cottage."

Emma S.

Swiss Cottage • March 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."

Olivia E.

Swiss Cottage • November 2025

Basement Conversion

"After several quotes, we chose HAMPSTEAD RENOVATIONS for our basement conversion project. Best decision we made - quality work, great communication, and they respected our mansion block's character."

Jonathan K.

Swiss Cottage • March 2025

Basement Conversion

4.9

Average rating from 200+ Google reviewsView all →

Basement Conversion FAQs for College Crescent

Common questions about basement conversion in Swiss Cottage.

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

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.

Yes, College Crescent is in our core service area. We're based at Unit 3, Palace Court, 250 Finchley Road, just 0.4 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 College Crescent within 30-45 minutes in normal traffic. For emergencies, we aim for a 2-hour response.

Still have questions? We're here to help.