Hiya
I have been planning a side return extension for the last couple of years all the paperwork is sorted with the exception of party wall. But neighbours know that I am planning to do the work.
I live in a two bed Victorian house in Plumstead and want to do a side return extension 2x3 metres into the return.
Chimney breasts will be removed in the current dining room and back bedroom
Bathroom is currently through the kitchen but will be moved to occupy half of the current dining room.
The remainder of the dining room, side return, kitchen and old fugly bathroom will then be a huge kitchen diner.
I have painstakingly sourced all my fixtures and fittings except for the large tiles and some kitchen appliances.
I have my kitchen, hot water tap, extractor fan, lacquered column and marble radiators. 80sq metres of engineered flooring that I got from a show flat. Vitra bath, Grohe taps, plugs, dimmer switches, lighting. Bought a real marble reproduction Victorian fireplace with cast iron inset for £65 on eBay today. In total I have spent under 7k on 85% of the fixtures and fittings I will need for the full house renovation.
I have bought for the full house reno even though I will mainly be focusing on the extension and downstairs bathroom initially.
Got some quotes through for the extension and the kitchen and I am not sure if these builders just don't want the job as they are quoting 100k which is a huge amount of money 
Have 4 more quotes, well if the builders decide to quote and 3 more visits arranged.
My sister who is an electrician has agreed to rewire the rest of the house for me and I have an old family friend that will take care of the plumbing.
Feeling really overwhelmed at the mo. Doing this by myself and I am just over it already.
Sorry about my essay. How many builders did you see, what kind of quotes did you get for your extensions and how did you cut costs. Thank you x