Its motto, Da Nobis Recta Sapere (Grant that we may be truly wise) comes from the collect (opening prayer) of the Mass of Pentecost.

It is sent out multiple times a year (often each half term) to all parents, governors and other key members of the school community.

Facilities include a recently installed full size astroturf pitch and playing fields in nearby Southover, a street in Woodside Park Garden Suburb, the other side of Dollis Brook.

On 26 April 2018, Finchley's year 10 football team qualified for the ESFA U15 National Cup Final overcoming Carshalton Sports College 3–1 in the Semi-final.

The school played St Francis Xavier's College from Liverpool in the final at the Madjeski Stadium (Reading) on 22 May 2018.

The show "Remember" written by Mark Sell and Lena Santos, was performed by students of FCHS and St. Michael's.

It is currently working on making a green energy supply to run an oxygenating system for the school pond, in the form of a wind turbine.

These are named after prominent Catholics (mostly with some personal connection to Finchley): Bampfield (green), Bourne (blue), Feckenham (gold), Fisher (white), Challoner (red), More (purple) and Alban (orange).