Flat Roof Rear Extensions:

Enhance your home with a modern, functional flat roof extension from Urban & Rural Construction — specialists serving Buckinghamshire and Hertfordshire. Whether you’re expanding your kitchen, creating a new living area, or adding value to your property, our expert builders deliver custom-designed flat roof extensions tailored to your needs. We’ve completed high-quality extensions in towns like Chesham, Berkhamsted, Amersham, Watford, Hemel Hempstead and St Albans, combining sleek design with durability, natural light, and seamless integration into your existing home.

This flat roof floods your living room with natural light by installing these huge skylights

Flat Roof Rear Extensions:

Expand Your Living Space with Style

A flat roof extension typically extends out into the rear garden, often spanning the full width of the property. This type of extension is a popular choice for increasing your home’s footprint, offering valuable additional floor space, perfect for enlarging the kitchen or creating a spacious new living area.

Particularly well-suited to Victorian and Edwardian homes, flat roof rear extensions help unify the often fragmented layouts found at the back of period properties. They offer a smart, modern solution for transforming your home into a more open, cohesive living environment.

Rear extensions are ideal for embracing an open-plan layout, seamlessly connecting kitchen, dining, and living areas. Depending on your requirements, they can be built as single-storey or double-storey additions.

At Urban & Rural Construction, we specialise in both traditional and contemporary kitchen extensions. We take pride in delivering beautifully designed, highly functional interiors, finished to the highest standards of craftsmanship.

Our clients can choose from a range of tailored extension options, including bespoke rear kitchen extensions. Whether you’re planning to expand your kitchen or create a versatile, open-plan living space, we’ll work closely with you to bring your vision to life.

Flat Roof Extension: Cost, Pros and Design Ideas

A flat roof extension is a popular and cost-effective way to expand your home, especially for single-storey extensions. Whether you’re upgrading your kitchen or adding a modern living area, a flat roof can be an ideal solution.

When comparing a flat roof vs pitched roof extension, your decision will depend on your budget, design goals, and the style of your existing property. In this guide, we’ll explore the pros and cons of flat roof extensions, typical costs, and design ideas to inspire your project.


Flat Roof Extension Benefits

More Affordable

A flat roof extension is generally cheaper than a pitched roof extension. With simpler structural requirements and lower, cost materials, it’s a great option for homeowners looking to maximise space without exceeding their budget.

Modern Aesthetic

Flat roofs offer a clean, contemporary look that pairs well with modern or even traditional homes, especially when using materials like zinc cladding, render, or aluminium.

Natural Light Options

Incorporate skylights, roof lanterns, or light wells to bring in natural light and create a bright, airy interior.

Efficient Drainage

Though called “flat,” these roofs are built with a slight slope to allow effective rainwater drainage.


Flat Roof Extension Cost in the UK

So, how much does a flat roof extension cost?

Prices vary based on size, location, materials, and complexity of the build. On average, you can expect:

  • Small flat roof extension cost: from £48,000
  • Medium to large extension: £56,000 to £64,000+

For an accurate quote, it’s best to consult contact us on 0800 644 6114.


Flat Roof Extensions

Flat roof extensions are especially popular for period properties like Victorian or Edwardian homes. They offer a striking contrast to traditional architecture while providing a sleek, minimalist look. With modern materials like zinc, fibreglass (GRP), and EPDM rubber, flat roofs can be just as durable as their pitched counterparts.


Flat Roof Extension Ideas for Modern Homes

Looking for flat roof extension inspiration? These ideas can help elevate your project:

  • Skylights and roof lanterns for bright, open interiors
  • Bi-fold doors for seamless garden access
  • Green roof or sedum roof for eco-friendly design
  • Rooftop terrace (subject to planning permission)
  • Zinc cladding or render for a modern finish

Flat roof extensions are especially useful for kitchen extensions, side return extensions, and wraparound extensions, where space and headroom are at a premium.

📞 Get Your Flat Roof Extension Quote Today

Ready to turn your kitchen into the space you’ve always dreamed of?

📞 Call us today freephone number 0800 644 6114
📧 Or email info@urbanandruralconstruction.co.uk

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