Navigating Planning Permission for the Perfect Loft Conversions
A loft conversion is one of the most popular ways to enhance your living space. Not only do they add value to your property, but they also creatively maximise your existing space.
In fact, loft conversions boast the highest ROI of any home improvement project, mainly because they’re a cost-effective means of adding an extra bedroom to your property.
Before embarking on any home improvement project – including loft conversions – it’s vital to understand planning permission.
Read on to learn about loft conversion planning permission and when you might need it.
Permitted Development
First off, there’s a chance that you won’t need planning permission at all.
Planning law includes “Permitted Development Rights” (PDRs), which enable homeowners to make certain property alterations without planning permission, subject to limits.
There are several limits for loft conversions relating to changes to the roof, volume, height, windows, elevation, and more.
Moreover, PDRs don’t automatically apply to homes in conservation areas or where they’re otherwise removed (often due to rules imposed by local councils).
The key considerations are:
- Volume Limits: The loft conversion must adhere to volume limits. For terraced houses, the limit is 40 cubic meters, while for detached and semi-detached houses, it’s 50 cubic meters. This includes any previous enlargements made to the roof space.
- Height Restrictions: The conversion cannot exceed the height of the existing roof’s highest part. This means the new structure should not surpass the main roof’s ridge line.
- Principal Elevation and Highways: If the loft conversion includes changes to the roof slope on the principal elevation (the part of the house that faces the street), it’s not considered permitted development and requires planning permission. This is particularly relevant for dormer windows as part of the conversion.
As noted, it’s important to note that PDRs are subject to conditions and limitations, so consulting with a professional builder or contractor, like Corella, can provide clarity and assurance.
Understanding Planning Permission
Moving on to planning permission, unless PDRs apply, it is a legal requirement that ensures your project adheres to local development guidelines.
Planning permission has generally been easier to obtain in recent years, but one common question we encounter is, “How long does planning permission last?”
Typically, planning permission is granted for three years from the date it’s given. This means you have this period to commence your building work.
However, verifying specific time frames with your local authority is always prudent, as there might be slight variations.
Different Forms of Loft Conversion and Planning Permission
When planning a loft conversion, it’s key to understand the different options. Some are less likely to need planning permission, or might be easier to obtain planning permission for.
- Velux Loft Conversion: Simple but effective, Velux loft conversions involve minimal alterations to your existing roof. Your loft is turned into a habitable space and fitted with a large window(s). This often doesn’t require planning permission due to lower volume and minimal work to the structure of the building.
- Dormer Loft Conversion: This is one of the most common types involving an extension of the existing roof, which projects vertically to create additional floor space and headroom within the loft. Dormers, especially flat-roof dormers, offer excellent gain in terms of extra space and are often feasible under PDRs.
- Hip-to-Gable Loft Conversion: Ideal for semi-detached or detached properties, this conversion extends the hip of the roof outwards to create a gable end, providing more internal loft space. This style often requires planning permission due to the significant changes to the roof structure.
- Mansard Loft Conversion: Named after the 17th-century French architect Francois Mansard, this style involves altering the structure of a sloping roof to an almost straight slope at an angle of 72 degrees. Mansard conversions usually require planning permission due to the extent of the alterations.
Corella Will Help You Navigate Planning Permission
Embarking on a loft conversion is an exciting journey. By exploring the essentials of planning permission and types of loft conversions available, you’re well on your way to creating a space that meets your needs and enhances your home’s value and appeal.
Working with professional, skilled building contractors will shape your project for success, ensuring your visions come to life.
Corella understands that a loft conversion is more than just an addition to your home – it reflects your lifestyle and aspirations. We’ll work with you to establish your goals and put your project in motion.
Contact us today to learn more.