DG83

Hi all, I've come across this forum and am pleased to have joined as it appears to be a great resource - and boy do I need some help and guidance haha! We own (well the bank does) a semi-detached property in Surrey and have recently employed a company to create planning and building regs drawings and to act as our agent throughout these processes. Ultimately, we are on a tight budget so will be seeking all tips and advice that I can get my hands on. I have tried to do much research so for instance, will be keeping the extension very square to keep costs at a minimum. Unfortunately I have been furloughed (albeit very grateful for the support I'm receiving under this scheme) so have taken the questionable decision to progress the build with some speed so that the budget we do have, isn't squandered away on our monthly living costs. I'll worry about the other side on the other side. There are a few things that I could do with some general advice on and any relevant tips too please. If any of you can help with the below then please do let me know... - Does anyone have a detailed list/spreadsheet which breaks down the numerous areas of costs associated with such builds that you'd be happy to share with me please? - Some people are suggesting not to serve notice under the 3rd party wall act. I am reluctant to take this approach but am concerned that my neighbour may well try to frustrate this process at every opportunity so as much as I'd like to work constructively with them, I suspect that they are unlikely to help to keep this as simple as possible. Any tips here please? I will be building within 3 metres of their outbuilding but not there main house and I will be retaining side access of at least one metre. - Is it generally cheaper to get a builder to complete all works or to firstly source contractors/companies for the elements where I have contacts (e.g. I know a roofer, a Gas Safe engineer, an electrician etc.). I will ultimately compare options like for like but wondered if anyone has some loose guidance here. Thanks in advance and I look forward to receiving as much info as possible.