Mansard Loft Extensions
Elevate your home, elevate your lifestyle
Transform Your Home with a Mansard Loft Extension
A Mansard loft extension is one of the most transformative types of loft conversions available. Named after the French architect François Mansart, this style involves altering the entire roof structure to create a near-vertical rear wall (typically at a 72-degree angle) and a flat roof on top. The result is a substantial increase in headroom and floor space, making it ideal for homeowners who want to add multiple rooms or create a large master suite.
This type of extension is suitable for many types of properties, including terraced, semi-detached, and detached homes. It can be designed to include large windows, Juliet balconies, or even rooflights to maximise natural light.
Whether you're looking to create extra bedrooms, a luxury bathroom, or a spacious home office, a Mansard loft extension offers incredible potential to enhance your living space and lifestyle.



What is a Mansard Loft Extensions?
A Mansard loft extension is a type of loft conversion that dramatically alters the shape of your roof to maximise usable space. It involves raising the party walls on either side of your property and creating a flat roof with a steeply sloped rear wall, typically at a 72-degree angle. This box-like design allows for full-height ceilings throughout most of the new space, making it feel like a natural extension of your home rather than an attic conversion.
Unlike some other types of loft conversions, Mansard extensions almost always require full planning permission due to the significant changes made to the roof structure. However, the payoff is substantial: a large, bright, and versatile living area that significantly increases the property’s value and functionality.
Why choose us?
One of the main benefits of choosing a Mansard extension is the amount of usable space it provides. It offers more internal height and floor area than dormer or hip-to-gable conversions, making it perfect for adding large bedrooms, luxury bathrooms, or even open-plan living spaces.
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