Does a Loft Conversion Necessitate a Planning Permission?

This is a question that most property holders ask themselves when they decide to convert or extend their existing loft area. While planning permission is not required for most loft conversions, a decision not to obtain permission in obligatory cases could be extremely pricey, particularly if the conversion of your attic involves major modification of the roof space.

Here is a precise and handy guide to give you an idea about whether or not planning permission is required for your loft conversion. Contact professionals for loft conversions in Epping.

If your intended loft conversion abides by the following conditions set by the building authority, it is not mandatory to obtain planning permission.

  • Unless otherwise the side-facing window is 1.7 meters above the converted room's ground level, it should be non-opening and obscure-glazed
  • Conversion does not affect the existence of protected species like bats

However, the procurement of a planning permission becomes indispensable when your loft conversion demands extensive alteration of the roof space.

Take for instance, the case of a dormer conversion, wherein the conversion is done with the installation of a dormer window that projects out from the roof.

Another type of loft conversion that entails a permit is Hip to Gable, as it is all about swapping the existing slopping roof with a flat gable wall. Mansard conversions also need a permit primarily due to the complicated roof procedures that form part of its extension.

Precisely, the scope and nature of your loft conversion will usually determine whether you need to obtain planning permission. So make sure that you're well informed about the Building Control Laws, before you do anything.

A knowledgeable loft conversion specialist can also guide you through the confusion of obtaining a permit for loft extension or conversion in your area.

Main Types of Loft Conversions

A loft expansion or extension delivers a fantastic chance to boost the size and performance of a house and is often counted among the most well-known kinds of home improvement.

In the event the ideal idea and preparation is put in designing the attic, it's likely to make the most of what was formerly unusable space within the house. You can visit to know more about loft extensions.

Listed below are the main options available to the Normal householder:


Dormer loft extensions entail altering and extending the roof construction that's remarkably capable of generating additional headroom and floor area. A dormer attic is ideal to grow the general living area inside the house whilst also adding a decent sized window in the attic area.

Hip to Gable:

A attic extension of the sort involves changing the outside form of this rooftop. Hip to gable discussions are exceptionally capable of adapting the attic space to incorporate a decent sized attic space, which could also incorporate sufficient space to take a staircase that is fitted. 


A mansard styled attic extension gives the ideal chance to maximize usable space inside the top of a home – although this kind of conversation is much more commonly found in town properties, as opposed to possessions in suburban locations.