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Gunnersbury Triangle

Cut off from the surrounding area by railway tracks in the late 19th century, this reserve has developed into a lively ecological community.

Gunnersbury Triangle became one of the London Wildlife Trust's first reserves when it was saved from development by a campaign run by local people.

Since the end of the Second World War, the woodland here has grown up naturally and the reserve has become a sheltered birch and willow woodland with attractive pond, marsh and meadow.

Hidden away, the reserve opens up before you - so follow the nature trail, listen out for birds or the rustle of a hedgehog, look out for the tunnels of field voles, or keep an eye out for interesting spiders and ladybirds.

Habitats you'll see:

Woodland, meadow, marsh and pond

Species you might spot:

Speckled wood, orange tip butterfly, green woodpecker, great spotted woodpecker, common newt, common toad, common frog, wood mouse and sparrow hawk.

If you spot these or any other species, please submit your wildlife sightings to Greenspace Information for Greater London (GiGL) to help build a picture of London's nature!

Visit us:

The entrance is on Bollo Lane, opposite Chiswick Park Underground station. Map

To see if there are any events coming up at this reserve, take a look at our event listings.

Get involved:

To see if there are any opportunities to help out at this reserve, visit our volunteering page.

School visits:

We have over 20 years’ experience teaching children outdoors, providing brilliant hands-on nature lessons in London directly linked with the National Curriculum. For more information on the sessions we provide at Gunnersbury Triangle visit our outdoor education page.

Site status:

Site of Metropolitan Importance; Local Nature Reserve.


Kestrels by Philip Braude. Can you make a donation today to help secure the future of our reserves?

Image of kestrels by Philip Braude

Species and habitats


Nearby nature reserves

Isleworth Ait
3 miles - London Wildlife Trust
Greville Place
4 miles - London Wildlife Trust
Farm Bog
5 miles - London Wildlife Trust

Nature reserve map

Reserve information

Bollo Lane
Greater London
W4 5LW
Map reference
TQ 201 786
Best time to visit
Jan - Dec
Get directions
Find out here
Public transport
Plan your journey
Opening Times
Open at all times.

There are public footpaths around the reserve, but terrain can be uneven in places. Wheelchair access is limited.
Walking information
Limited wheelchair access.
Neighbouring street parking available, with restrictions on weekdays and Saturdays.
Guide dogs only
Grazing animals
Reserve manager
Michael Fray
Tel: 07734 599 729