Holmbury St Mary is a village in Surrey, England centered on shallow upper slopes of the Greensand Ridge.

It contains a building which formerly doubled as a meeting venue for Beatrice Webb, a Fabian social reformer who co-founded the London School of Economics; it is now the location of the Mullard Space Science Laboratory.

The church was initiated and paid for in 1879 by George Edmund Street,[9][10] who had built himself a large house in the village between 1873 and 1876, named "Holmdale".

When George Edmund Street first visited Felday with his wife, Mariquita in 1872, she was so captivated by the town she called it "Heaven's gate" and the coupled moved there soon after.

This was confirmed by Keith Winser, who undertook a search through the Holmbury parish magazines where he found that construction for the camp was completed in 1917 by the Royal Defence Corps for the internment of German prisoners of war.

Council Tax payers in Holmbury St Mary pay a precept to one of two civil parishes, depending on the location of their property in the village.

[15] The Beatrice Webb House was opened by Clement Attlee and served as an important education and discussion facility for the Fabian Society, British Labour Party and trade unions.

[20] The laboratory was established at Holmbury St Mary in 1966 and since then has participated in more than 35 satellite missions and over 200 rocket experiments.

[23] The village itself is situated within a ravine, which had once been home to small sandstone quarry and clay brick businesses for the area.

[30] Until 2020, the village held annual spring and summer flower shows, organised by the Holmbury St Mary Horticultural Society.

[30] Holmbury St Mary's religious community offer a range of celebrations held by the church, including choral performances and popular Christmas services.

[30] Holmbury St Mary is believed to be the basis for the fictional village of Summer Street in A Room With A View.