The majority of loft conversions can be built without planning permission due to the allowances for permitted developments. These are not allowed for houses that have already had a permitted development built (such as an extension or garage), and for houses that have been listed or built in a conservation area.
However, even if your loft conversion could be built as a permitted development, this may not be the best option for you. There are a number of reasons why you may want to design a loft conversion beyond the limits allowed by a permitted development, which may take more time but offers far more flexibility in your plans and overall loft design.
Add a Loft Conversion Balcony
Despite large windows being allowed, balconies (even Juliet balconies) cannot be built as a permitted development. Many of our clients would love to add a balcony to their home and remove one of the barriers between indoor and outdoor space. The higher up your balcony is, the better the view and more privacy you often enjoy, so a loft conversion is often the best choice for where to build one.
Create a Larger Loft Conversion
If you would like to create as much new space as possible, you will need to step outside the permitted development allowances. Mansard loft conversions offer the most usable space in a loft conversion by opening up more of the roof space and creating more square-shaped rooms where you can use the majority of floor space around the edges. Because they make such significant changes to the exterior of your home, Mansard loft conversions can only ever be built after submitting a request for planning permission.
If you would like to discuss your loft conversion preferences and find out whether you require planning permission to bring them to life, get in touch. We work with RIBA accredited architects to create functional loft conversion plans that have the best chance of gaining planning permission in your area.