We visited Sri Balaji temple in Birmingham, UK.
Birmingham is 205 kms from London and well connected by train, bus and flights. You can take a bus, train or cab from Birmingham City to Sri Balaji Temple.
The Shri Venkateswara (Balaji) Temple, dedicated in the Vaishnava tradition to a form of the Hindu god Vishnu, is one of the largest functioning Hindu temples in Europe. It is located in Tividale, West Midlands, England between the suburbs of Tipton and Oldbury, northwest of Birmingham city. The temple was designed with inspiration from the Tirupati Venkateswara Temple in Andhra Pradesh, India.
I will recommend a day trip to the temple and reach before the Abhishek time. Also, do not forget to have mahaprasad before you leave.