After some midnight troubles trying to find the place (it is not correctly marked on Google maps), it was nice to meet Anna - the host. She is very accommodating and knowledgeable about the best places to visit and how to get there. She also gave me valuable advice on how to travel on a budget in London and was even going to lend me her bike. The house is located not too far from the downtown (about 20 minutes by bike) but the area looks like social housing and is mainly populated by immigrants. It can get rather loud in the room. I had to open the balcony door to let some fresh air in and the highway is located just below. I used the earplugs and was able to sleep just fine.