Loft Conversions
Transform Your Space with Loft Conversions
At Art & Build Ltd, we specialize in delivering exceptional loft conversions that transform your unused attic space into a beautiful and functional living area. Our commitment to excellence and attention to detail ensures that every project is not just a renovation, but a masterpiece that elevates your home to new heights.
Loft Conversions
by Art & Build Ltd
At Art & Build Ltd, we specialize in creating beautiful, functional loft conversions that expand your living space and enhance the value of your home. Our team of expert architects and builders delivers top-quality workmanship tailored to your unique needs and preferences.
Whether you’re looking to add an extra bedroom with bathroom, a home office, or a cosy retreat, we can bring your vision to life.
Common Types of Loft Conversions - What’s Right for Your Home?
At Art & Build Ltd, we design and build all major types of loft conversions to suit different roof structures, budgets, and planning requirements. Whether you’re in London, Surrey, Kent, or the surrounding areas, we can help you unlock valuable living space in your home.
Here’s a breakdown of the most popular loft conversion types and what they typically cost in the London area.
Dormer loft conversion is the most common and versatile type, suitable for most pitched roofs. It involves extending the roof vertically to create a flat-roofed box-shaped structure.
Best for:
- Bedrooms with en-suite
- Home offices
- Maximising head height and floorspace
Benefits:
- More usable internal space
- Often falls under permitted development
- Ideal for terraced and semi-detached homes
Estimated cost in London:
- £50,000 – £70,000+ (including en-suite and full fit-out)
An L-shaped dormer is a variation where two dormers are joined at a 90-degree angle, creating a larger footprint — ideal for Victorian and Edwardian properties.
Best for:
- Multiple bedrooms
- Studio flats
- Rental conversions (e.g. for Airbnb or lodgers)
Estimated cost in London:
- £60,000 – £80,000+
This type replaces the sloping side of a hipped roof with a vertical gable end, creating more internal space. Often combined with a rear dormer for even more room.
Best for:
- End-of-terrace or detached houses
- Gaining full staircase access
- Creating master suites
Estimated cost in London:
- £55,000 – £75,000+
A mansard conversion dramatically changes the roof shape by raising the party wall and altering the rear slope to a near-vertical angle.
Best for:
- Maximising space in period homes
- Properties in conservation areas (with permission)
- Long-term value increase
Estimated cost in London:
- £65,000 – £90,000+
This is the most budget-friendly option, using existing roof space without altering the roofline. Ideal if full head height is already available.
Best for:
- Home offices
- Guest bedrooms
- Budget-conscious projects
Estimated cost in London:
- £30,000 – £45,000+
Not Sure Which Loft Conversion Is Right for You?
At Art & Build Ltd, we offer free consultations to assess your property, your goals, and your budget. Our expert team will guide you through the best type of loft conversion for your home — with clear costings, timelines, and design ideas tailored to you.
Contact us today to arrange your free site visit across London, Surrey, Kent, and surrounding areas.
Our Expertise – Loft Conversions
At Art & Build Ltd, we provide a full, end-to-end loft conversion service tailored to your property and lifestyle. With over 15 years of experience working across London and surrounding areas, our team delivers expertly designed and constructed loft spaces — on time, on budget, and to the highest standards.
We manage every stage of the process, including:
- Feasibility assessment and tailored recommendations for your property
- Design & architectural planning, including structural calculations
- Support with planning permission and permitted development rights
- Full loft conversion build – from structural work to final fit-out
- Construction of dormer, hip-to-gable, mansard, and Velux-style conversions
- Staircase design and installation to meet building regulations
- Installation of roof windows, skylights, and dormer windows
- Complete plumbing and electrics for en-suites or home offices
- Insulation, soundproofing, and fire safety compliance
- Internal plastering, flooring, and decorating
- High-quality bathroom installation (if applicable)
- Final snagging, cleaning, and sign-off.
Experienced Professionals
Our team boasts extensive experience in managing all kinds of loft conversion projects. Whether you need assistance with loft design and building management or simply want us to execute a pre-designed project, our contractors, architects, and fitters are ready to help.
Custom Design and Build
Tailored Solutions
We understand that every home and every family is unique. Our bespoke design and build services ensure that your loft conversion is perfectly suited to your needs. From initial consultation to final touches, we work closely with you to ensure your vision is realized.
Our process includes:
- Free Consultation: We start with a detailed consultation to understand your requirements and aspirations.
- Custom Design: Our architects create a bespoke design that aligns with your preferences and local building regulations.
- Planning Permission: We handle all necessary permissions and approvals, ensuring a hassle-free experience.
- Construction: Our skilled builders and project managers execute the plan with precision, delivering high-quality results on time and within budget.
Why Choose Art & Build Ltd?
Experienced Professionals
Our team of in-house architects, designers, and builders are dedicated to excellence. We pride ourselves on our attention to detail and commitment to quality. Our comprehensive service includes everything from structural design to interior finishing, ensuring a seamless experience and a stunning end result.
Client Satisfaction
We have a proven track record of successful loft conversions across London and beyond. Our clients appreciate our transparent pricing, reliable service, and the lasting value we bring to their homes. We believe in building strong relationships with our clients, ensuring their complete satisfaction with every project.
FAQ
How long does it take for your construction company to complete a loft conversion?
Most loft conversions in London and surrounding areas take between 6 to 10 weeks, depending on the size, type, and complexity of the project. At Art & Build Ltd., we provide a clear project timeline and keep you informed at every stage — from structural work to final finishing.
Do I need planning permission for a loft conversion?
In many cases, loft conversions fall under permitted development rights and do not require full planning permission. However, this depends on your property’s location, roof height, and whether you live in a conservation area. We assess your situation and, if needed, handle all planning applications on your behalf.
Can Art & Build Ltd. help with designing the loft layout?
Absolutely. Our in-house team offers loft conversion design services, including layout planning, 3D visualisations, and advice on how to maximise light, space, and functionality. We help you transform your loft into a beautiful, usable part of your home — whether it’s a bedroom, office, or en-suite.
What is the typical cost of a loft conversion?
The cost of a loft conversion varies depending on the type and scope of the work. In general:
- Velux (Rooflight) conversions: from £30,000
- Dormer loft conversions: £50,000 – £70,000
- Hip-to-gable or L-shaped conversions: £60,000 – £80,000
- Mansard conversions: £65,000 – £90,000+
We provide a transparent, itemised quote tailored to your property and needs. Contact us for a free loft conversion cost estimate near you.
Will a loft conversion add value to my property?
Yes — a well-executed loft conversion can increase your home’s value by up to 20%, especially in high-demand areas like South West London, Richmond, or Wimbledon. It adds functional living space without extending your home’s footprint, making it one of the most cost-effective ways to improve property value.
What types of loft conversions do you offer?
Art & Build Ltd. specialises in all major types of loft conversions:
- Velux (Rooflight) Conversion
- Dormer Loft Conversion
- L-Shaped Dormer
- Hip-to-Gable Conversion
- Mansard Loft Conversion
We recommend the best type based on your roof structure, space, and goals.
How do you ensure structural safety during a loft conversion?
We work with qualified structural engineers to assess your existing roof and floor load capacities. All reinforcements, joists, and steel beams are installed according to UK building regulations. Safety, compliance, and workmanship are always our top priorities.
Can you manage everything, including electrics and plumbing?
Yes. As a full-service loft conversion contractor, we handle everything — from electrical rewiring, lighting installation, and heating systems, to plumbing for en-suites or wet rooms. You won’t need to hire additional trades — we manage the full project from start to finish.
What should I consider before deciding on a loft conversion?
Before starting, consider:
- The head height in your existing loft (usually 2.2m minimum)
- Your goals: bedroom, office, studio, etc.
- Access: can stairs be added without compromising lower floors?
- Budget and return on investment
- Whether planning permission or party wall agreements are needed
We guide you through all of this during our initial consultation.
How do I prepare for the start of the loft conversion?
We recommend:
- Clearing the loft space of stored items
- Discussing access and parking for our team
- Notifying neighbours, especially for semi-detached or terraced homes
- Letting us know if you plan to live in during the works — we can adapt accordingly
We’ll provide a full checklist before we begin.
Do you offer free loft conversion quotes and consultations?
Yes, we offer free on-site consultations for loft conversions in London, Surrey, Kent, and nearby areas. We assess your roof, measure the space, discuss your ideas, and provide a no-obligation quotation tailored to your home.
Get in Touch
If you’re considering a loft conversion, look no further than Art & Build Ltd. Contact us today to schedule your free consultation and take the first step towards transforming your loft into a beautiful, functional space.
