Loft Conversions London – Design & Build by Bloom Builders

At Bloom Builders, we specialise in bespoke loft conversions in London, transforming underutilised attic spaces into functional and stylish living areas. Whether you're considering a master suite, home office, or a cosy guest room, our expert team delivers tailored solutions to meet your needs.

Why Choose a Loft Conversion?

  • Maximise Space: Convert unused attic areas into valuable living space without extending your home's footprint.

  • Increase Property Value: A well-executed loft conversion can significantly boost your property's market value.

  • Customisable Designs: From modern minimalism to classic comfort, design your loft to reflect your personal style.

  • Cost-Effective Expansion: Compared to traditional extensions, loft conversions often require less time and investment.

Types of Loft Conversions

  • Dormer Loft Conversion: Ideal for adding headroom and floor space, suitable for most UK homes

  • Mansard Loft Conversion: Offers maximum space, featuring a flat roof and steeply sloped walls, often requiring planning permission

  • Hip-to-Gable Conversion: Transforms the sloped side of a roof into a vertical wall, perfect for semi-detached or end-of-terrace houses.

  • Velux (Rooflight) Conversion: A cost-effective option that adds skylights without altering the roof's structure.

  • L-Shaped Dormer Conversion: Combines two dormers to create an L-shape, providing substantial additional space.

Loft Conversion Cost UK

The loft conversion cost in the UK varies based on the type and complexity of the project:

  • Velux Conversion: £25,000 – £35,000

  • Dormer Conversion: £40,000 – £55,000

  • Hip-to-Gable Conversion: £50,000 – £65,000

  • Mansard Conversion: £60,000 – £80,000

  • L-Shaped Dormer Conversion: £45,000 – £75,000

Prices are estimates and can vary based on specific requirements and finishes.

Planning Permission

Most loft conversions in London fall under permitted development rights, meaning they don't require planning permission. However, exceptions include:

  • Properties in conservation areas

  • Flats or maisonettes

  • Conversions that exceed specified size limits

Our team will guide you through the loft conversion planning permission process to ensure compliance with local regulations.

Small Loft Conversion Ideas

Even compact lofts can be transformed into functional spaces:

Home Office: Create a quiet workspace away from household distractions.

  • Guest Bedroom: Design a cosy retreat for visitors.

  • Children’s Playroom: Utilise the space for a fun and safe play area.

  • Reading Nook: Develop a tranquil corner with built-in bookshelves and seating.

Incorporating smart storage solutions and light colour schemes can enhance the sense of space in smaller lofts.

Why Choose Bloom Builders?

  • Experienced Team: Skilled professionals with a track record of successful London loft conversions.

  • Comprehensive Service: From initial design to final touches, we manage every aspect of your project.

  • Transparent Pricing: Detailed quotes with no hidden costs.

  • Quality Assurance: Commitment to high standards and customer satisfaction.

Ready to transform your attic into a beautiful living space? Contact Bloom Builders today for a free consultation and personalised quote.

Call us: 0207 585 2020 (available 24/7)
WhatsApp: 07765 948 069 (Ross)
Email: hello@bloombuilders.co.uk
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All our projects come with

  • Fixed Price Contracts

  • Full Project Management

  • Design & Build expertise

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Basements

In order to build a basement, you underpin the existing masonry wall or form a retaining wall in the garden to the desired depth of the basement. Once the building above and garden around is stable, the main area is excavated down and a new concrete slab is poured. The concrete box is then wrapped in waterproof membrane and a pump system is installed. Ready for fit out.

Please see our basement FAQs below:

Basements FAQs

  • 90% yes. Most houses, especially London terraced houses lend themselves ideally for loft conversions. The limit is usually the ridge of the existing house. If you can stand up in the loft, you should be fine. If you have to duck a little bit, you will need a ridge rise which should be OK if it is not too aggressive (300mm for example is usually OK). If your roof has a very shallow pitch or a butterfly roof there is a possibility it will not work for you.

  • This will depend on the size of the loft but typically it is around 6-8 weeks to finish structurally and then fit out is about the same again.

  • In many cases, loft conversions fall under permitted development rights, meaning you may not need planning permission. However, there are exceptions, particularly if you're altering the roof's shape or extending beyond certain limits.

  • There are many different types of loft conversion. The three most popular are a dormer, mansard and hip to gable. Which you are after will depend on the style of your property, available space, planning regulations, roof height and your budget.

  • Yes. Big time.

  • Not necessarily. But it’s nicer. If you have the budget to rent somewhere else during the works I don’t think you will regret it. Plenty of our clients live in whilst the conversion takes place. The most disruptive element is usually managing a new staircase installation but we would give you fair warning of when this is taking place. Up until then, the majority of works can usually commence without disrupting any part of your current home.

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  • Building regulations does not stipulate a minimum height requirement for habitable rooms within a loft conversion although the wording is unclear. There are restrictions relating to the staircase but lofts are up for interpretation. 2.1m is the minimum viable height in my opinion, finished floor level to the underside of the ceiling.

  • Yes of course, it is easier to plumb the bathroom to the back of the house so avoid be aware around bathrooms in the eaves - plumbing maybe tricky.

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Get in touch.

To get in touch, please fill in the form on the right or email us. Alternatively you can call 0207 585 2020 or call and whatsapp 07765 948 069. We’ll get back to you as soon as we can.