It moved into purpose-built premises at Lascelles Road, which are still used by the current school.

The school was given an overall rating of "Outstanding", although the Sixth Form was only rated "Good", with serious concerns raised over the number of students unable to progress from AS level to A2 level studies due to poor grades.

Upton Court Grammar is known as a multicultural school that has achieved a remarkably happy coexistence of students from diverse ethnic backgrounds.

The 2008 OFSTED inspection report describes Slough Grammar as "outstanding" the 2011 OFSTED interim assessment confirms that the standards are unchanged,[7] The IB courses offered put it into a different category for 6th form league tables.

The IB results were strong in 2006 and this has had a slight knock on effect in reducing the overall grade spread at A level.

The term "Paludian" for former students of the school(s) is derived from the Latin word palus (genitive paludis), meaning a marsh or slough.

The term was first coined by the Headmaster, W. Francis Smith, in 1915, when the Old Paludians Association was formed, and has been in continuous use ever since.