Yes, but this type of conversion will require full planning permission. This is because you’d be changing the use of the ground floor from residential to commercial (typically to a use class such as E), while the upper floor would remain as a residential flat (Class C3). The change of use triggers the need for planning approval.
Find out more about change of use
You will not need to apply for planning permission if you wish to erect a new; or alter, maintain, improve or take down* an existing fence, wall or gate if certain conditions are met. If any of the conditions are not met, then you will need to apply for planning permission.
Find out about the limits and conditions for fences, gates and walls.
Fences, walls and gates do not require building regulation approval. Even though building regulations do not apply, the structures must be structurally sound and maintained.
If you share a wall with a neighbour, it may be classed as a ‘party fence wall’.
Adding an internal wall will not require planning permission or building control approval in most cases. If the building is listed, then you may require listed building consent to make a major alteration to the house.
Any work completed should adhere to building regulations, ensuring fire routes, electrics and ventilation are considered.
Planning permission is not required for internal changes such as changing a bathroom to an accessible wetroom, however, if you live in a listed building, you will have to apply for listed building consent for any significant works, whether internal or external.
Building regulations approval will likely be required for changes to a make a bathroom accessible, specifically when the change will impact the structure of the room, drainage and electrical systems. It is recommended to have work completed by a member of the competent person scheme.
Foundations are required to carry and distribute the load of the building safely. Therefore, all buildings should have adequate foundations. The factors that need to be considered when designing a foundation are:
It is advisable to contact a structural engineer or speak to a building control body about plans for new foundations.
Read more about foundations for extensions
An improvement notice is a notice served by a local authority requiring a property owner to carry out specified works to bring a building into compliance with the legal standards. These are most commonly served to landlords to make a building safe.
The notice will specify what works should be completed and when it should begin and be completed by.
Failure to comply with an improvement notice is a criminal offence.