There is an update on the NeT website about the works in preparation for the tram extension along University Boulevard. As far as I can see, any complete closures are restricted to overnight, but the lane restrictions are clearly impeding traffic during peak hours.
Note also that the Robin Hood Half Marathon comes past the club (twice, once on each side of the lawns!) on the morning of Sunday 30th September. The race starts from the Victoria Embankment at 9:30 am, so will presumably pass us from about 10 am onwards. There is a route map here.