Loft conversions are one of the most popular ways to add value and space to your home without the upheaval of a full extension. But with several different types available, how do you know which one is right for your property?
Velux (Rooflight) Conversion
A Velux or rooflight conversion is the simplest and most affordable type of loft conversion. It involves installing windows into the existing roof slope without altering the roof structure.
Best for: Properties with adequate head height (typically 2.2m minimum) and roofs with a 35-45 degree pitch. Ideal for period properties where you want to preserve the original roofline.
Key benefits: No changes to external appearance, typically falls under permitted development, lower cost than other types, minimal disruption during construction.
Considerations: Limited head space in places, less natural light than other types, may not be suitable for all roof pitches.
Dormer Conversion
A dormer conversion adds a structural protrusion from the roof, creating additional headroom and floor space. It's one of the most common and versatile types of loft conversion.
Best for: Properties with limited head height in the loft, or where you need more usable floor space and headroom throughout.
Key benefits: Creates full head height throughout, allows for stairs to be installed, provides excellent natural light and ventilation, can be designed to match your property's style.
Considerations: Requires planning permission in some cases, more invasive than Velux conversions, alters the roofline externally.
Hip-to-Gable Conversion
A hip-to-gable conversion involves extending the sloping side of a hipped roof (where all sides slope inward) to create a vertical gable wall. This significantly increases usable loft space.
Best for: Detached or semi-detached houses with hipped roofs, particularly in areas where you want to maximise floor space without extending the building's footprint.
Key benefits: Creates substantial additional space, often allows for a full floor with multiple rooms, can add significant value to your property.
Considerations: More complex construction, typically requires planning permission, can be disruptive, may affect neighbours on semi-detached properties.
Mansard Conversion
A mansard conversion involves replacing the entire roof slope with two nearly vertical sides and a flat roof. It's the most extensive type of loft conversion but creates the most space.
Best for: Properties in conservation areas where roofline changes are permitted, listed buildings (with consent), or when you want to maximise floor space to create multiple rooms.
Key benefits: Maximum floor space creation, can create a full second floor, allows for complex room layouts, can transform the appearance of the property.
Considerations: Most expensive option, almost always requires planning permission, significant structural work, requires Building Regulations approval, can be disruptive.
Which Type is Right for Your Home?
Choosing the right loft conversion depends on several factors:
- Your roof type: Hipped roofs are ideal for hip-to-gable conversions, while mansard conversions work best on properties where the roof will be completely rebuilt
- Available head height: Properties with 2.2m+ head height may qualify for Velux conversions
- Budget: Velux conversions start around £25,000, while mansard conversions can cost £60,000+
- Planning constraints: Conservation areas, listed buildings, and flats have additional restrictions
- How much space you need: Your requirements will determine which conversion type provides adequate space
Getting Expert Advice
The best way to determine which loft conversion type is right for your property is to consult with experienced professionals. At Doherty Builders, we can assess your property and recommend the most suitable option for your needs and budget.
Contact us today for a free consultation and quote on your loft conversion project.