The Avenue was a rugby union stadium and training pitches in Sunbury-on-Thames that belonged to the English club London Irish since 1931 when the team bought its 11 acres (4.5 ha).

In 2014 the club began to train at its replacement, larger Hazlewood facility in the same town, including its Academy and hosting international training when Twickenham stadium hosts such tournaments and the grounds were converted to landscaped suburban housing, a sports/leisure club and care home.

The land was purchased in 1931 for £1,280 (equivalent to £109,855 in 2023) to be the home stadium for London Irish, before they left in 1999 to play at the Stoop Memorial Ground.

[8] At the planning authority's planning committee meeting, councillors of all parties opposed redevelopment, citing various grounds, including limited public transport, increasing existing peak-hour congestion, too few bedrooms per dwelling and initially a highly urban density as well as some character shortcomings.

[12] On 15 April 2010, around 500 local people attended a protest march, seeking same-ground retention or community concessions over a maximised balance sheet for the club.