What services do you offer?

B&N Building specialises in house extensions, loft conversions, bespoke joinery, basement conversions, kitchen design and installation, as well as complete home renovations and refurbishments.

Do you work in areas outside of Chigwell?

Yes, we operate throughout London, especially in North and North East London, as well as Essex, including Chigwell and surrounding areas.

How do I get a quote for my project?

You can request a free quote by emailing us or filling out the online form on our Contact Us page. We’ll arrange a consultation to discuss your project in detail.

How long does a typical project take?

The timeline varies depending on the size and scope of the project. After an initial consultation, we provide a detailed schedule so you know what to expect.

Are you a licensed and insured contractor?

Yes, B&N Building is fully licensed and insured, and all work is carried out to high safety and quality standards.

Can you help with planning permission for extensions and loft conversions?

Yes. We can assist with the planning permission process, including guidance on paperwork and local council approvals.

Do you offer bespoke design services?

Yes, we offer bespoke design services tailored to your needs, whether for a new kitchen, joinery, or other custom work.

How can I keep track of my project’s progress?

We maintain open communication throughout the project and provide regular updates so you are informed every step of the way.

Loft Conversions Hampstead – Transform Your Home with B&N Building

A well-designed loft conversion is one of the most effective ways to create additional living space without altering the footprint of your property. Many homes in Hampstead benefit from generous roof structures, making this sought-after area ideal for smart, high-quality loft extensions that add both space and long-term value.

At B&N Building, we specialise in Loft Conversions in Hampstead, offering bespoke solutions shaped around your home, lifestyle, and architectural style. Whether you want to create a spacious master suite, a quiet home office, or a bright studio room, our team delivers tailored designs and exceptional workmanship from start to finish.

Why Choose B&N Building for Your Loft Conversion in Hampstead?

With extensive experience working across Hampstead and the surrounding NW postcodes, we understand the character and diversity of local homes—from Victorian terraces and Edwardian houses to modern builds and converted apartments. Every project is individually planned to ensure the new loft space blends naturally with the existing property and meets all building regulations.

Clients choose B&N Building because we provide:

Fully bespoke designs
Expert guidance from concept to completion
Clear project management
Premium craftsmanship across every stage
Compliance with structural, safety, and planning requirements

Our goal is to make the process smooth, predictable, and efficient while delivering a space that enhances how you live.

Modern bedroom renovation featuring bespoke fitted wardrobes, desk, and radiator cover — designed and built by BN Building in London. — A modern bedroom completed by BN Building, featuring bespoke fitted wardrobes, an integrated desk, and a stylish radiator cover for a clean, functional design.

Loft bathroom under renovation with newly plastered walls, patterned floor tiles, navy herringbone wall tiles, and a fitted bathtub beneath a skylight. — A loft bathroom undergoing renovation, featuring fresh plastering, decorative floor tiles, and navy herringbone tiling around the bathtub.

Types of Loft Conversions We Offer in Hampstead

Different homes require different approaches. We help you identify the most suitable type for your roof structure, available head height, and design goals. Popular options include:

Dormer Loft Conversions

A practical and cost-effective choice, ideal for creating extra headroom and maximising internal floor space. Dormers work well on a wide range of property styles across Hampstead.

Mansard Loft Conversions

Favoured for period properties, mansard conversions offer generous space, improved natural light, and an elegant aesthetic that complements traditional Hampstead architecture.

Hip-to-Gable Conversions

Perfect for semi-detached or detached homes with a hipped roof, allowing you to unlock significant extra space by straightening the roofline.

Velux Loft Conversions

An excellent option when minimal structural change is needed. Velux windows maximise daylight while keeping the roofline intact.

No matter the conversion type, every design is shaped specifically around your household’s needs.

Is Your Hampstead Home Suitable for a Loft Conversion?

Several important factors determine whether your loft can be converted:

Head Height

A minimum of 2.2m from the top of the ceiling joists to the underside of the ridge is recommended.

Roof Pitch

Steeper roof pitches (around 40° or more) generally offer more usable floor space.

Internal Obstructions

Chimneys, water tanks, and structural elements must be considered during planning.

Age and Structure of the Property

Older homes often provide more conversion-friendly roof structures, though modern homes can also be adapted with the right engineering.

End Shape

Gable-ended roofs typically allow greater expansion than hipped roofs.

B&N Building assesses all these factors during your survey and advises on the best structural and design solutions for your specific property.

How Much Does a Loft Conversion Cost in Hampstead?

Loft conversion prices vary depending on:

Size of the loft area
Condition and age of the structure
Type of conversion
Accessibility
Additional features (bathrooms, skylights, bespoke joinery, etc.)

Because every home is unique, the most accurate way to receive a cost estimate is through a free, no-obligation survey at your Hampstead property. We cover NW3, NW6, NW11, NW2, NW1, and all nearby areas.

You will receive a clear, competitive quotation with no hidden extras.

Add Space, Comfort and Value with a Hampstead Loft Conversion

A professionally built loft conversion not only enhances everyday living but also increases the value of your property—often by up to 20%. With B&N Building, you benefit from experienced builders, precise workmanship, and a team dedicated to delivering results that exceed expectations.

If you’re ready to explore the possibilities within your roof space, we’re here to help.

Contact B&N Building Today for Loft Conversions in Hampstead

For expert advice, design ideas, and a free quotation, get in touch with our team.
Your new loft space is just a call away.