Why use an architecture firm
here are a number of reasons why someone will choose to use an architecture company over a sole trader. The most obvious reasons is security, with a ltd company you can research the company before and have an understanding of their financial background and read up a bit more about what they do. One of the reasons to use an architecture firm for residential drawings is their expertise with obtaining planning permission. If your in doubt with the way your builder has built the project your architect can help to project manage the build.
Retrospective Planning Permission
When making major changes to your home that aren’t covered by permitted development, you should always endeavour to obtain planning permission in advance. However, when planning permission isn’t given in advance, or when the finished structure differs significantly from the works permission was granted for, there may be action by the council.
Punishment won’t necessarily be forthcoming. Enforcement action is only likely if the building is dangerous, or if planning permission for the finished structure would have been refused to start with.