A campaign has been launched against plans by an East Sussex golf club to expand its car park into woodland.
Crowborough Beacon Golf Club wants to build up to 50 new spaces on the common to prevent people parking on Southview Road at peak times.
The club said the plans, which would see about 48 trees removed, were "sympathetic" to the environment.
Brendan Clegg, of the Save Our Common Group, said the car park would have a "detrimental" effect on the common.
Crowborough golf club said its membership had grown by about 16% over the past two years and there was "a desperate need for more car parking space".
'Possibility for accidents'
It has applied for permission, accompanied by more than 40 letters of support, to expand the number of spaces at its current car park from 95 to 145.
The club said about a third of the existing 130 silver birches and eight sycamores in the area would have to be removed but they would be replaced with a greater number of native species trees.
David Ball, chairman of Crowborough Beacon Golf Club, said: "If we don't have parking space the alternative will be to park on the road and that has, I believe, terrible consequences for traffic and for the possibility for accidents in getting in and out of the A26."
Mr Clegg, who started the Save Our Common Group, said there were no parking problems in the area and the development was unnecessary.
He added: "We're very concerned about any development on common land that directly impacts on the common.
"We believe this car park, which will cut deep into the wood with the loss of nearly 30 protected trees, will be detrimental to Crowborough Common."
Residents have until 31 May to comment on the plans.