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Loft Conversions

Loft Conversions

Room for improvement

A loft conversion can free up space in your property without expanding the footprint of your property, or applying for planning permission. Whether you have a detached or terrace property, there could be space at the top for a new room. 

A natural space for an additional bedroom, headroom and structure permitting, there are several options to consider.

Things to Consider

The style of your loft conversion

A flat roof conversion is perhaps the most cost-effective type, projecting vertically from the sloping section of the roof. Known as a dormer conversion, this style adds headroom and introduces flat sides and ceiling, enabling you to use regular windows rather than rooflights.  

This style may be less aesthetically pleasing externally, but is more likely to qualify under permitted development.

Converting the loft into a new floor

If you are after a comprehensive loft conversion, perhaps with an ensuite bathroom, and don’t mind seeking planning permission, then a mansard loft conversion may be your best approach. 

Essentially creating a new floor for the house to the front, rear or both, this approach is ideal for period properties and typically spans the two gable walls. It requires the creation of a near-vertical sloped roof, with windows and a flat roof.

Extend the hipped end of your roof

A hip-to-gable loft conversion involves leveling your roof to remove the slant (or hip), creating a consistent roofline and a vertical wall for your new room. This development adds space and can be combined with a dormer conversion to create headroom.

The simple approach to loft conversion

Another way to convert a loft involves reinforcing the floor and introducing electrical power, insulation and plumbing, together with natural lighting and ventilation through roof windows.

This method will be the least expensive way of turning your loft into a comfortable, habitable space, provided the roof at the centre of the room is at least 2.6 metres high to enable the construction of a new floor.

Will I need planning permission?

A loft conversion shouldn’t require planning permission, provided you abide by a number of caveats. These include ensuring the extension does not exceed the highest part of the existing roof, nor include raised platforms or balconies that overhang the outer face of the original wall of the house.

Will you need a bathroom?

If your loft conversion is to be a bedroom, then you may consider installing an ensuite bathroom. Your architect will advise you on the need to carry water into and away from the loft, floor reinforcement and the ability to provide water at a good pressure. 

A bathroom may be possible, but know what’s involved to make it work and get an idea of cost and timing. Materials such as marine-grade plywood and waterproof tile backing will ramp up costs.

Top Tips

The style of your loft conversion

A flat roof conversion is perhaps the most cost-effective type, projecting vertically from the sloping section of the roof. Known as a dormer conversion, this style adds headroom and introduces flat sides and ceiling, enabling you to use regular windows rather than rooflights.  

This style may be less aesthetically pleasing externally, but is more likely to qualify under permitted development.

Converting the loft into a new floor

If you are after a comprehensive loft conversion, perhaps with an ensuite bathroom, and don’t mind seeking planning permission, then a mansard loft conversion may be your best approach. 

Essentially creating a new floor for the house to the front, rear or both, this approach is ideal for period properties and typically spans the two gable walls. It requires the creation of a near-vertical sloped roof, with windows and a flat roof.

Extend the hipped end of your roof

A hip-to-gable loft conversion involves leveling your roof to remove the slant (or hip), creating a consistent roofline and a vertical wall for your new room. This development adds space and can be combined with a dormer conversion to create headroom.

The simple approach to loft conversion

Another way to convert a loft involves reinforcing the floor and introducing electrical power, insulation and plumbing, together with natural lighting and ventilation through roof windows.

This method will be the least expensive way of turning your loft into a comfortable, habitable space, provided the roof at the centre of the room is at least 2.6 metres high to enable the construction of a new floor.

Will I need planning permission?

A loft conversion shouldn’t require planning permission, provided you abide by a number of caveats. These include ensuring the extension does not exceed the highest part of the existing roof, nor include raised platforms or balconies that overhang the outer face of the original wall of the house.

Will you need a bathroom?

If your loft conversion is to be a bedroom, then you may consider installing an ensuite bathroom. Your architect will advise you on the need to carry water into and away from the loft, floor reinforcement and the ability to provide water at a good pressure. 

A bathroom may be possible, but know what’s involved to make it work and get an idea of cost and timing. Materials such as marine-grade plywood and waterproof tile backing will ramp up costs.

Industry pro tips

A shallow roof angle is no obstacle

If the roof gradient means you’ll struggle for head height, then measures can be taken to lower the floor, raise the roof or extend the space in other ways. A conversion could still be possible, but it may cost you more.

Removing key fixtures

Lofts are often the location for water tanks and chimney breasts. Your conversion may require you to remove or relocate both. An unvented hot water cylinder or mains-fed combination boiler is one option if you’re short on space.

Consider the modular approach

Limit disruption and save onsite time by opting for a modular roof conversion: designing and constructing a room offsite before lifting it into place once the roof has been removed entirely.

Real spaces we've designed
Marshalswick

Marshalswick

View Project
Communal home with wow factor

Communal home with wow factor

View Project
Harpenden loft

Harpenden loft

View Project
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DIVINE DESIGN CONSULTANTS LTD
49 Queens Crescent, Marshalswick,
St Albans, Hertfordshire
AL4 9QQ
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