GCSE Results 2017 – 100% A* – C!

St. Mary’s Independent School, Southampton achieves 100% A* – C (equivalent) in Maths and English and an impressive 40% of all grades achieved at A*and A St. Mary’s Independent School would like to congratulate all of its Year 10 and 11 students on their outstanding GCSE examination results.  Our exceptional Maths and English results of 100% […]


Congratulations to Mr Lerego

Congratulations to Mr. Lerego from the Senior school who ran the New Forest Marathon on Sunday 10th September in a time of 4 hours and 36 seconds.

By Alex Matthews | News . Sports

Fun in Chemistry

Year 8 are developing their understanding the periodic table of elements by making their own periodic table of lego! Ordered by size and colour, the table repeats its properties (the colour) regularly (in a periodic fashion). Year 10 are attempting the ‘A classic rate of reaction’ practical experiment which has made a return to the […]

By Alex Matthews | Academic . News . Senior Department

Thanks from the Warhammer club

The Warhammer club are enjoying playing with some of the new models and rules which were kindly funded by the SMPTA. These were purchased just before the summer holidays and have been a real hit with the club members, having been used several times already!

By Alex Matthews | News . Parents Association . Warhammer

The Romsey Show

We had a wonderful time representing the school at the Romsey Show on Saturday.  It was great to meet so many Old Simmarians and we also spoke to a lot of people who were interested to hear about St. Mary’s.  We all battled through the mud and, thankfully, the sun shone for most of the […]

By Alex Matthews | Homepage News . News

Year 4 Study Egyptian Artefacts

This week in Year 4 we had the chance to look at artefacts from Ancient Egypt. We discussed what we thought they may be and asked questions to find out more. Later on, we used computers and books to answer our questions. We found this topic fascinating and are keen to learn more!

By Alex Matthews | Academic . Blog . Prep Department

Boniface walks Hadrian’s Wall

During the school holidays, I walked Hadrian’s Wall. It took 10 days and the longest day was 13 miles. Hadrian’s Wall is 84 miles long and I walked it all! The highest point was 345 metres and it was on top of Steel Rigg. We had to cross over the very steep Pennines which was […]

By Alex Matthews | Blog . Parents Association . Prep Department

Farewell to Mrs Owen

Mrs Owen completed her final day at St. Mary’s Independent School on a high as we celebrated the amazing GCSE results from our Year 11 and 10 students.  There was just enough time for a final cup of tea before closing her office door for the final time.  We wish Mrs Owen all the best […]

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Independent Day School for girls and boys aged 3 to 16.


"The quality of the school's provision for pupils' welfare, health and safety is outstanding"


"The school's provision for pupils' spiritual, moral, social and cultural development is exemplary"


"Pupils' behaviour and personal development are outstanding"



Telephone: 023 8067 1267

Address: 57 Midanbury Lane, Bitterne Park, Southampton, SO18 4DJ