Double Mansard
Loft Conversions

What is a Double Mansard Loft Conversion?

A double mansard loft conversion modifies both slopes of a roof to create near-vertical walls and a flat roof. This design is ideal for maximising internal space and is often used on terraced properties where expanding to the front and back creates a more symmetrical, cohesive look.

Costs

How Much Does a Double Mansard Loft Conversion Cost?

Costs vary depending on the size, structure and finishes required. Typically, this type of conversion is more complex and costs slightly more than other loft types. Contact us for a site visit and bespoke quote tailored to your property.

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Do You Need Planning Permission for a Double Mansard Loft Conversion?

Yes, as double mansard loft conversions significantly alter the roof structure planning permission is usually required. Our team will handle all applications ensuring a smooth process.

Explore Styles

Double Mansard
Loft Styles

Traditional Double Mansard: Features symmetrical angles on both roof sides for a uniform and elegant appearance.

Split-Level Mansard: Introduces a stepped layout, ideal for creating distinct areas within the loft.

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Why Choose
The Loft Build Company?

Our expertise and passion for crafting bespoke lofts make us the ideal partner for your double mansard conversion. With a focus on quality, style and client satisfaction we create spaces that perfectly balance practicality and aesthetic appeal. Based in Ealing, we serve London and Surrey ensuring every loft complements its surroundings seamlessly.

Common Questions

Will a dormer loft conversion work for my property?

Dormer lofts are versatile and suitable for most property types including terraced, semi-detached and detached homes. We can confirm whether this is the best design for your home during an initial consultation.
Can I add multiple dormers to my roof?

Yes, multiple dormers can be added, depending on planning permissions and structural considerations.
How much does a dormer loft conversion cost?

Costs vary based on size, design and materials. We provide a detailed quote after assessing your property.
Do I need planning permission for a dormer?

Most dormer conversions fall under permitted development rights, but this can vary. We’ll handle all planning requirements for you.
What if I have a small roof space?

Dormer conversions are especially effective for small lofts, adding usable space and improving functionality.
Can dormers include Juliet balconies or roof terraces?

Yes, dormers can incorporate features like Juliet balconies to enhance aesthetics and functionality subject to planning regulations.

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Design Ideas For
Double Mansard Loft Conversions

Coordinated
Finishes

Match balcony railings and materials with interior design elements for cohesion.

Glass-Front
Balconies

Opt for a frameless glass balustrade to create an open and airy look, maximising light and views.

Cohesive Roofing
Extensions

Extend the loft's roofing material onto the balcony edge for a seamless exterior look.

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Types of Loft Conversions

When it comes to loft conversions one size does not fit all! Below are just a few examples of popular conversions but there are many more.

Determining the one that’s right for you is based on a variety of factors including your roof structure, property layout, budget, planning regulations and aesthetic preferences.

Through careful evaluation and collaboration our architects will guide you through the selection process, recommending the loft styles that best compliment your home and maximise its potential.