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Cassiobury Park, Watford — the River Gade running through the park
© Jack Hill / Geograph / CC BY-SA 2.0

Cassiobury Park Guide

Watford's largest public park — 190 acres of green space, the River Gade, and the Grand Union Canal, a short walk from the town centre.

Watford.co Editorial15 July 2026

Cassiobury Park is the largest and best-known public park in Watford, Hertfordshire, covering around 190 acres (77 hectares).

History

The park was created in 1909 when Watford Borough Council purchased part of the estate of the Earls of Essex, whose family seat, Cassiobury House, once stood on the site. The house was demolished in 1927.

What's in the Park

The park extends from the A412 Rickmansworth Road in the east to the Grand Union Canal in the west, with the River Gade and River Colne both running through it. Cassiobury Park Avenue forms a tree-lined approach from the town centre side.

Getting There

Cassiobury Park is a short walk from Watford town centre along Cassiobury Park Avenue. Watford station, on the London Underground Metropolitan line, sits at the park's southern edge, making it easily reachable without a car.

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