Neil's place is literally right down the street from the Mottingham train station easy access. be prepared to walk in London.
The room was small but no complaints as it was described in the photos. I did not know he had a bigger room listed but I am 7ft tall & I managed with no problem.
I was there to sleep & shower cause I wanted to take in as much of London as I could.
Google maps would be your best bet to get to his house. At the time of me writing this it's a 20 minute train ride from London bridge station (Monday-Saturday) Sunday it's Victoria station to his exit Mottingham & a 4-5 minute walk to his house.
Neil was a cool guy. Pretty sure we will cross paths again.