Dear question...
Purchase or hire a piano from Markson pianos (
www.marksonpianos.com, 5-8 Chester Court, Albany Street, NW1 4BU. Tel: 020 7935 8682. They are fantastic and will look after you with tuning etc. throughout. Reasonable, and you can put your finance towards owning the same piano if you hire over a long period of time, and your family love it enough to continue.
You will never have a problem with having a piano in a semi-detached home as long as you put your piano away from the party wall, and you don't play after midnight.
We have a piano and drum kit. In cities most are largely tolerant as long as you are reasonable.
Enjoy!
Best wishes
Emma (
www.musichouseforchildren.co.uk)