© Neil Aldridge

A small area of acid grassland and remnant heath on Greensand that supports a range of invertebrates.


Sandrock Hill Road
Nearest postcode: GU10 4NR

OS Map Reference

SU 832 444
A static map of Underdown

Know before you go

1 hectare

Parking information

No car park


Not suitable for wheelchair users or those with limited mobility.


Under effective control

When to visit

Opening times

Open at all times

Best time to visit

May to August

About the reserve

Kindly donated to the Trust in 1987 by Mrs Underdown, in memory of her husband. The smallest of the Trust’s reserves, Underdown occupies a narrow but steeply sloping strip of land comprising small areas of gorse and heather on Greensand in a residential area of Shortheath, Farnham.

The topography of the site suggests that it was once part of a larger heath before being encapsulated by Farnham. Mixed woodland including mature Scots pine now grow at the top of the slope while scrub formations occupy the valley below.

The site is home to a range of invertebrates, including solitary wasps. 

Contact us

Contact number: 01483 795440
Contact email: info@surreywt.org.uk

Location map