This season, they have won eight, drawn seven and lost only three of their 18 league games played at home.
Arsenal relocated from Highbury to the Emirates Stadium in 2006, while north London neighbours Tottenham are undergoing redevelopment work at White Hart Lane.
“When you played Arsenal at Highbury, it wasn’t dangerous but you felt it,” added Bilic.
“Then we played against them at the Emirates and we enjoyed it; the players were taking selfies.
“The Upton Park stadium was a first home. No matter where you move after that – if you move to a fancy apartment, a big house or to a mansion – your favourite one is always the first.
“You are losing something because it is impossible to make the Olympic Stadium a fortress.”
‘Upton Park inspired me’
West Ham co-owner David Gold grew up on Green Street, where Upton Park is located, and took over the club in 2010 with David Sullivan.
“My earliest memories were as a six- or seven-year-old boy was the excitement every Saturday,” said Gold.
“At that age I used to come and watch the boys playing in the morning at 11 and then at 3pm the reserves. The following week it would be the first team.”
Former midfielder Jack Collison, who made 121 appearances for West Ham but retired this year through injury, said: “I remember coming to watch games here as a 16- or 17-year-old and being inspired by the atmosphere and the players.
“It pushed me on to want to be in the first team and make my mark.
“I did manage that and I scored my first goal against Everton. I don’t think I will be able to recreate that feeling of the ball hitting the net.”