Loft Conversion Specialists in Streatham

A typical loft conversion in Streatham with LMB Group usually takes between 4 to 6 weeks, depending on the size of the project and the level of complexity involved. Whether you’re based near Streatham Common, along Leigham Court Road, or in one of the family homes tucked behind Streatham High Road, we tailor our approach to your property and timeline.

We begin by discussing your vision and goals in detail during the design and planning phase. This helps us ensure that your loft extension is both practical and personal to you. Once the plans are in place, our team works efficiently and respectfully to carry out the build, always aiming to minimise disruption to your daily routine—especially important for busy family homes or remote workers in areas like Streatham Vale or Streatham Hill.

Throughout the process, we maintain open communication so you’re always informed and involved. Our goal is to deliver your dream loft space on time, on budget, and with the high standard of craftsmanship that LMB Group is known for across South London.

Yes—at LMB Group, ensuring full compliance with local building regulations is a core part of our process. Every loft conversion we carry out in Streatham, whether it’s a period property near Streatham Common, a 1930s semi off Green Lane, or a terrace along Mitcham Lane, is designed and built to meet the requirements set by the local council and UK building standards.

Our team is well-versed in the regulations specific to Lambeth and Wandsworth Boroughs, depending on your exact location, and we ensure all structural, fire safety, and energy efficiency standards are thoroughly met. From insulation and ventilation to staircase regulations and load-bearing calculations, we take a proactive, detail-oriented approach from day one.

By choosing LMB Group, you’re not just getting a beautifully crafted loft space—you’re investing in peace of mind. We handle all the necessary approvals and work closely with building control officers to ensure your project runs smoothly, stays compliant, and results in a safe, secure, and future-proof addition to your Streatham home.

The cost of a loft conversion in Streatham can vary based on several key factors, including the size of your loft, the complexity of the design, your chosen materials, and any bespoke features you’d like to include. Whether you’re living in a terraced house near Streatham High Road, a semi-detached property in Streatham Vale, or a character home close to Leigham Court Road, each project is priced to reflect the unique needs of the home and homeowner.

At LMB Group, we offer a free, no-obligation consultation where we assess your loft space, listen to your ideas, and provide a detailed, transparent estimate. Our quotes are fully itemised with no hidden fees, so you always know exactly what you’re paying for—from the structural framework to final finishes.

Our goal is to deliver high-quality, cost-effective loft conversions that offer real value. Whether you’re expanding your home for a growing family or increasing its long-term market appeal, we tailor every build to suit your budget and enhance your living space.

At LMB Group, we offer a range of loft conversion types to suit the variety of homes found throughout Streatham. Whether you live in a Victorian terrace near Streatham Hill Station, a 1930s semi off Green Lane, or a family home close to Streatham Common, we’ll help you choose the best option to suit your property and your goals.

Velux loft conversions are perfect if your existing roof offers ample head height and you want to bring in natural light without altering the roofline—ideal for quieter residential areas like Streatham Vale. Dormer conversions, one of the most popular choices in the area, are great for adding more headroom and usable space and work especially well on mid-terrace homes.

If you’re after maximum floor space and a more substantial change, a mansard conversion is ideal and often seen in end-of-terrace properties or larger homes near Tooting Bec Common. Meanwhile, hip-to-gable conversions are well-suited to homes with sloped, hipped roofs—common in parts of Streatham Park—and can significantly open up the loft area.

Our expert team will assess your property, discuss your vision, and recommend the most suitable type of conversion. We always consider your budget, structural layout, and any planning requirements to deliver a loft extension that enhances your space while complementing the character of your Streatham home.

A loft extension is one of the most effective ways to add functional space and long-term value to your home in Streatham. At LMB Group, we’ve helped homeowners across the area—from Victorian terraces near Streatham High Road to 1930s semis in Streatham Vale—unlock the full potential of their properties without expanding outward or giving up garden space.

A well-designed loft extension allows you to transform unused attic space into a spacious bedroom, home office, or even an en-suite guest suite. This is particularly valuable in family-friendly neighbourhoods like Streatham Common or Streatham Hill, where demand for flexible living space is high.

Beyond the lifestyle benefits, a loft extension can significantly increase the value of your property, making it a smart investment for the future. And because every project we deliver is tailored to your needs, it’s an opportunity to add a bespoke, beautifully finished space that enhances both your home and your way of living.

Whether you need planning permission for a loft extension in Streatham depends on the type of property you own and the scale of the work you’re planning. In many cases, particularly for homes in areas like Streatham Vale or Streatham Hill, loft extensions fall under Permitted Development Rights. This means you may not need formal planning approval, as long as your extension meets certain criteria relating to height, volume, and roof alterations.

However, if your property is a flat, listed building, or located within a conservation area—such as streets near Streatham Common or Tooting Bec Gardens—you may need to apply for planning permission. Similarly, more extensive alterations like mansard or hip-to-gable conversions can also require consent depending on local guidelines.

At LMB Group, we always recommend speaking with our team early in your project. We’re well-versed in local planning policies across Lambeth and Wandsworth, and we can guide you through the process or handle planning applications on your behalf—making sure your loft extension is fully compliant and hassle-free from the start.

The cost of a loft extension in Streatham can vary based on a number of factors, including the size and type of conversion, the materials selected, the complexity of the design, and any bespoke features you’d like to include. Whether you’re extending a loft in a terraced property near Streatham High Road, a 1930s semi in Streatham Vale, or a larger home overlooking Streatham Common, every project is priced to reflect the unique requirements of your space.

At LMB Group, we offer a free, no-obligation consultation, where we assess your property, discuss your goals, and provide a detailed, fully transparent quote. Our pricing is clear and comprehensive, so you’ll know exactly what’s included—no hidden fees or surprise costs.

We’re committed to delivering high-quality loft extensions that offer real value for money. Our team works with your budget and vision in mind, ensuring your investment enhances both your home and your lifestyle for years to come.

Yes, a loft extension can make a noticeable difference to your home’s energy efficiency—especially when designed and built with the latest standards in mind. At LMB Group, we prioritise eco-friendly solutions in all our loft conversions across Streatham, whether it’s a traditional terrace near Streatham Common, a 1930s semi in Streatham Vale, or a period home off Leigham Court Road.

By extending your loft, we can integrate modern insulation materials into the roof, walls, and floors, helping to minimise heat loss in winter and regulate indoor temperatures in summer. This not only reduces your energy bills but also creates a more comfortable, climate-conscious living space.

We also offer energy-efficient glazing, such as Low-E roof windows, and the use of sustainable materials where possible. These thoughtful additions can greatly reduce your carbon footprint while enhancing the performance and long-term value of your home—making your new loft extension both smart and sustainable.