Types of Loft Conversions: A Comprehensive Guide

Types of Loft Conversions can be broadly categorized into several main types, each offering unique features and advantages. Velux or roof light conversions involve adding roof windows to an existing pitched roof, providing cost-effectiveness and ample natural light. Dormer conversions, on the other hand, extend vertically from the roof slope, offering increased headroom and floor space with various design options. Mansard conversions feature steeply sloping walls to maximize usable space and create an elegant roofline.


Types of Loft Conversions



Hip-to-gable conversions are suitable for properties with hipped roofs, extending the existing roof into a gable to enhance space and blend with the property’s architecture. L-shaped or side return conversions are an innovative solution for properties with side extensions, allowing homeowners to expand their loft space creatively. Each type of loft conversion caters to different property types, budget considerations, and planning permission requirements, providing homeowners with an array of options to enhance their living space and property value.

Loft conversions are a popular way to maximize living space and add value to a property without the need for a costly and time-consuming extension. Converting a loft allows homeowners to utilize an underutilized area in their homes and transform it into functional living space. Over the years, several types of loft conversions have emerged, each with its unique characteristics, advantages, and limitations. In this comprehensive guide, we will delve into the various types of loft conversions, exploring their features, suitability for different properties, and the potential benefits they offer.

1. Velux or Roof Light Conversions

Velux or roof light conversions are among the most straightforward and cost-effective options for transforming a loft space. This type of conversion involves adding roof windows, typically Velux windows, to the existing pitched roof. The primary advantage of this conversion is that it requires minimal alterations to the roof structure, making it less expensive and quicker to complete compared to other types.


  • Cost-effective.
  • Faster completion time.
  • Allows natural light to flood the space.
  • Suitable for properties with limited roof space.


  • Limited headroom in certain areas due to the slope of the roof.
  • Reduced floor space compared to other loft conversion types.

2. Dormer Conversions

Dormer conversions are a popular choice for homeowners who require additional headroom and floor space in their loft conversion. A dormer is an extension that projects vertically from the slope of the roof, creating additional space with a flat or sloping roof. Dormers come in various shapes and sizes, such as gable-fronted, hipped, shed, and flat roof dormers.


  • Increased headroom and usable floor space.
  • Versatile design options.
  • Suitable for a wide range of property types.
  • Improved natural light and ventilation with added windows.


  • More complex and costly compared to Velux conversions.
  • The appearance of dormers may not suit certain architectural styles.

3. Mansard Conversions

Mansard loft conversions are known for their elegant and stylish design. Named after the French architect François Mansart, this type of conversion involves replacing one or both sides of the roof with steeply sloping walls. The result is a nearly vertical roof with a flat top, which maximizes the usable space within the loft.


  • Significant increase in usable floor space.
  • Creates a more aesthetically pleasing and symmetrical roofline.
  • Well-suited for properties located in conservation areas.


  • Requires planning permission in some areas due to the significant roof alterations.
  • Typically more expensive and time-consuming compared to other conversion types.

4. Hip-to-Gable Conversions

Hip-to-gable loft conversions are most applicable to properties with hipped roofs, which are roofs that slope downward on all four sides. This conversion involves extending the property’s existing hip roof into a gable roof by raising the end wall. The result is increased internal space and headroom.


  • Provides more space and headroom compared to traditional hipped roofs.
  • Blends well with the property’s existing architecture.


  • May require planning permission in certain cases.
  • Limited suitability for properties with limited roof width.

5. L-Shaped or Side Return Conversions

L-shaped or side return loft conversions are an innovative solution for properties with a side extension. This type of conversion involves extending the existing loft space over the side extension, creating additional room for various purposes.


  • Maximizes the available space and allows for creative room layouts.
  • Ideal for semi-detached or terraced properties with side extensions.


  • May require additional structural support for the extended section.
  • Planning permission might be necessary, depending on the scale of the extension.


Loft conversions provide homeowners with a fantastic opportunity to expand their living space, enhance property value, and adapt to changing lifestyle needs without the need for major renovations. The various types of loft conversions, such as Velux, dormer, Mansard, hip-to-gable, and L-shaped, offer unique features and benefits, catering to different property types and budget constraints.

Before undertaking a loft conversion project, it is essential to consider factors like available roof space, planning permission requirements, and budget considerations. Engaging professional architects and builders is crucial to ensuring that the loft conversion aligns with building regulations and achieves the desired outcome. With careful planning and execution, a well-designed loft conversion can significantly enhance the living experience and overall value of a property.

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