Why London’s largest borough is actually a vast, protected stretch of rural farmland

Nature · Published 3 October 2026 Swipe more like this →

In short: Spanning 59 square miles, the London Borough of Bromley defies the city's concrete reputation. As the capital's largest and most rural district, it features extensive green belts, farmland, and the North Downs. While the north remains suburban, the south preserves a distinct, open landscape that feels worlds away from central London.

Formed in 1965 under the London Government Act 1963, the modern borough of Bromley was created by merging several former districts, including the municipal boroughs of Bromley and Beckenham, alongside the urban districts of Orpington, Penge, and Chislehurst. Before this consolidation, most of the area was part of the county of Kent. Today, it stands as a unique administrative entity, occupying 153 square kilometers of land on the southeastern edge of Greater London.

The borough's geography is defined by its status as the most rural of the 32 London boroughs. A significant portion of its territory—nearly all land south of the A232-A21 route—is designated as Metropolitan Green Belt. This commitment to preservation is reflected in the fact that approximately 30% of the borough is dedicated to farmland, a higher proportion than any other part of London. It also contains the highest point in both London and Kent, Westerham Heights, which reaches an altitude of 804 feet.

Despite its rural character, Bromley maintains a complex demographic profile. Its population, which reached 329,991 in the 2021 census, is concentrated primarily in the north and west. The borough is notably well-connected by rail, though it remains one of only six London boroughs without a London Underground station. This balance between protected green space and suburban development has historically attracted notable residents, including Charles Darwin, who lived at Down House, and William Pitt the Younger, who resided at Holwood House.

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