Loft Conversions
Unlock your home's potential with a bespoke loft conversion — extra space without extending your footprint.
Loft Conversions in Sussex & London
A loft conversion is one of the smartest ways to add valuable living space to your home. By converting your unused loft into a bedroom, bathroom, home office or playroom, you can transform dead space into your favourite room.
Into Build specialises in all types of loft conversions, from straightforward Velux installations to complex mansard and hip-to-gable conversions. We manage the entire project including structural calculations, building regulations and all trades.
Many loft conversions can be carried out under permitted development without the need for planning permission. We'll advise you on the best options for your property.
Types of Loft Conversion
We build every type of loft conversion, recommending the best option based on your property, budget and requirements.
Dormer Loft Conversions
The most common type of loft conversion, a dormer extends out from the existing roof slope to create additional headroom and floor space. Ideal for most property types, dormers provide a practical, cost-effective way to add a bedroom, bathroom or home office.
Hip-to-Gable Conversions
Perfect for semi-detached and detached homes with hipped roofs. By extending the hip to a vertical gable wall, you significantly increase the usable loft space. Often combined with a rear dormer for maximum room.
Mansard Conversions
A mansard conversion alters the roof structure to create an almost vertical wall with a flat roof on top, maximising the internal space. Popular in terraced properties and conservation areas, mansard conversions typically require planning permission.
Velux / Roof Light Conversions
The simplest and most affordable option, a Velux conversion doesn't alter the roof structure — instead, roof windows are installed to bring in light and ventilation. Ideal when your loft already has good headroom and you want to keep costs down.
Planning Permission & Building Regulations
Many loft conversions fall under permitted development and don't require planning permission, but all conversions need building regulations approval. We handle the entire process for you — from structural calculations and party wall agreements to building control sign-off — so you can focus on choosing your finishes and furnishings.
Our Loft Conversions
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Thinking About a Loft Conversion?
Book a free consultation to discuss your options and get a no-obligation quote.