If you are buying a flat and plan to carry out work on the property you should look at the terms and conditions of the lease before you exchange contracts.
The lease agreement to the property will set out any rights and restrictions on altering the property. The lease will also tell you whether or not works, such as extensions are permitted and whether there are conditions that need to be satisfied when carrying out such works.
Carrying out improvement works to your property can be exciting and can add value to your property, but failure to comply with the terms and conditions of the lease agreement could result in a breach of the lease. In the event of a breach, the landlord might force you to pay for more building works to put everything back the way it was. To avoid this, it is important that you do not start any work on a property without knowing what work you are allowed to do; and whether consent is required.