St. Paul's Girls' School (SPGS) is a private day school for girls, aged 11 to 18, located in Brook Green, Hammersmith, in west London, England.  The school is included in The Schools Index as one of the world's 150 best private schools and among top 30 UK senior schools.

Addison and SPGS have a long partnership arrangement.  SPGS teachers and students provide lessons and lead a wide range of activities for the benefit of Addison pupils. some examples include: Latin club, Chess club, learning a Modern Foreign Language, Saturday school etc...

St Paul’s Girls’ School Partnerships are delighted to invite Addison's Year 5 and 6 pupils to take part in the Primary Partnership project:  The SPGS Primary Hub