What is the Best Loft Conversion for Your Home?

What is the Best Loft Conversion for Your Home

Loft conversions offer you multiple benefits. They increase your living space and improve your estate value. With so many different options available for loft conversion, how do you choose the best one for your home? Let Us first look at the most common types of loft conversions.

  1. Roof Light Conversion: Also known as a Velux conversion is the simplest and most cost-effective loft conversion. It involves adding roof windows (such as Velux windows) to the existing roof structure without changing the roofline. Roof light conversions are suitable when the loft has sufficient headroom and no major structural modifications are required.
  2. Dormer Conversion: A dormer conversion extends the existing roof to create additional floor space and headroom. Dormer windows are typically added to the sloping roof, providing more usable space and natural light. Dormer conversions are versatile and can be adapted to various property types, including terraced, semi-detached, or detached houses.
  3. Mansard Conversion: A mansard conversion involves replacing one or both sides of the roof with a nearly vertical structure. This type of conversion maximises the available space by increasing the usable floor area with its full headroom. Mansard conversions are often more complex and may require planning permission due to the significant changes to the roof structure.
  4. Hip-to-Gable Conversion: Hip-to-gable conversions are suitable for properties with hipped roofs. It involves extending the hip roof to create a vertical gable wall, which provides additional space and headroom. This type of conversion can be combined with other conversion types for even more usable space.

Pros and Cons of Roof Light Loft Conversion


  1. Cost-Effective: Rooflight conversions are generally more affordable than other loft conversions. They involve minimal structural changes, primarily focusing on adding roof windows, which can help keep costs down.
  2. Natural Light: Roof windows provide excellent natural light to the converted space, creating a bright and airy atmosphere. This can make the loft area feel more spacious and pleasant.
  3. Quick Installation: Rooflight conversions are often quicker to install than other loft conversion types. Since they require fewer structural modifications, the construction process is usually faster, resulting in less disruption to your home.
  4. Planning Permission: Rooflight conversions often fall under permitted development rights, meaning they may not require planning permission (subject to certain restrictions and guidelines). This can save time and effort in obtaining necessary approvals.

Energy Efficiency: With proper insulation and glazing, roof windows in a roof light conversion can contribute to improved energy efficiency, helping to reduce heating and cooling costs.


  1. Limited Headroom: Rooflight conversions may have limited headroom due to the roof’s slope. This can impact the functionality and comfort of the space, particularly in areas close to the roofline. Adequate headroom should be carefully considered when planning the layout.
  2. Restricted Views: Roof windows provide light but may offer more expansive views than other conversion types incorporating larger windows or dormers. The view may be limited to the sky or nearby surroundings.
  3. Limited Space Addition: Rooflight conversions typically use the existing loft space without extending or altering the roof structure. As a result, the additional floor space gained may be more limited compared to other conversion types.
  4. Ventilation and Airflow: Since roof windows are the primary source of ventilation in roof light conversions, it’s important to consider adequate airflow and ventilation to prevent issues such as heat buildup or condensation.
  5. Restricted Design Options: The design options for a roof light conversion may be more limited compared to other types of loft conversions. The shape and slope of the roof can constrain the layout and limit flexibility in design choices.

Pros and Cons of Dormer Loft Conversion


  1. Additional Headroom and Usable Space: Dormer conversions create additional headroom and usable space within the loft area. Extending the roof vertically provides more comfortable standing and walking space, allowing for better utilisation of the converted area.
  2. Increased Natural Light: Dormer windows can be incorporated into the design, providing ample natural light and ventilation to the converted space. This helps create a brighter and more inviting living area.
  3. Versatility in Design: Dormer conversions offer more design flexibility than other loft conversions. To maximise space and aesthetics, they can be customised to suit various property styles and combined with other conversion types, such as hip-to-gable or mansard.
  4. Improved Property Value: A well-executed dormer conversion can significantly increase the value of your property. It adds extra living space, a desirable feature for potential buyers or tenants.
  5. Enhanced Functionality: The additional space gained through a dormer conversion allows for greater functionality.


  1. Cost: Dormer loft conversions can be more expensive than simpler conversion types like roof light conversions. The complexity of the construction, including structural changes and the addition of windows, can increase the overall cost.
  2. Planning Permission: Planning permission may be required, but it depends on the dormer’s size, design, and location. This can involve additional time, effort, and potentially added costs in obtaining the necessary approvals from the local planning authority.
  3. Altered Roofline: Dormer conversions alter the roofline and appearance of the property. This may not be preferred by some homeowners who wish to maintain their homes’ original aesthetic or architectural integrity.
  4. Potential Loss of Loft Storage: Depending on the design and size of the dormer, it may result in the loss of some loft storage space. This is because the roof space is utilised to construct the dormer, reducing the available storage area.
  5. Impact on Other Spaces: During the construction process, there may be some disruption to other areas of your home, such as access routes, temporary removal of roof coverings, and potential noise and dust. Proper planning and communication with the construction team can help minimise these inconveniences.

Pros and Cons of Mansard Loft Conversion


  1. Maximum Floor Space: Mansard conversions maximise the available floor space by extending the roof on one or both sides, creating a nearly vertical roof structure. This type of conversion often provides the largest amount of usable space compared to other loft conversion types.
  2. Full Headroom: Mansard conversions typically provide full headroom throughout the newly created space. The roof’s steep slope allows for comfortable movement and utilisation of the entire area, making it suitable for various purposes such as bedrooms, living spaces, or home offices.
  3. Architectural Aesthetics: Mansard conversions can significantly enhance a property’s visual appeal and architectural character. The distinctive design and shape of the roof structure can add a touch of elegance and uniqueness to the building, potentially increasing its overall value.
  4. Increased Natural Light: Mansard conversions can incorporate large windows, such as a dormer or full-length French windows, allowing ample natural light to enter the space. This creates a bright and inviting atmosphere within the converted area.
  5. Potential for Planning Permission: Mansard conversions may fall under permitted development rights, depending on your local planning authority’s specific guidelines and restrictions. This can save time and effort in obtaining planning permission, although checking the regulations specific to your area is essential.


  1. Cost: Mansard loft conversions tend to be more expensive than other types due to the extensive structural changes involved. The construction process can be complex, requiring skilled labour and careful engineering to create the new roof structure.
  2. Planning Permission: Mansard conversions often require planning permission due to the significant changes in the roofline and the property’s external appearance. This can add time, effort, and potential costs in obtaining the necessary approvals from the local planning authority.
  3. Construction Time: The construction of a mansard conversion can take longer than simpler conversion types. The complexity of the structural work and the need for careful detailing and craftsmanship may extend the project’s overall duration.
  4. Impact on External Space: Mansard conversions alter the property’s external appearance, potentially impacting the overall shape and aesthetic of the building. This may not be preferred by homeowners who wish to maintain the original architectural integrity of their home.
  5. Impact on Other Spaces: During the construction phase, there may be some disruption to other areas of your home, such as access routes, temporary removal of roof coverings, and potential noise and dust. Proper planning and communication with the construction team can help minimise these inconveniences.

Table of Contents

Related Article