Green space will be lost at the Grade II*-registered park if the redevelopment proposals are given the go-ahead, according to local residents. The London Development Agency (LDA) has created a masterplan for the park, which Bromley Council will decide on during its Development Control Committee meeting on Tuesday (9 December).
Crystal Palace Community Association chairman John Payne said: "If Bromley grants permission for this application, it will set a precedent, threatening all other UK public parks and open green spaces.
"Parks must not be treated like our playing fields - sold off piecemeal for development. Parks must be valued for what they are - vital green spaces in our urban environment," he added.
A petition to reject the proposals has been signed by 7,000 local people. The LDA's plans involve eight distinctive zones of the 80ha park and include proposals for a treetop walkway, a new sports centre, car parking, children's nursery and up to 180 homes.
New sunken gardens, two greenhouses, kiosks and a playground also form part of the plan.
One of the greenhouses will contain a subtropical plant collection including mature exotic evergreens, a butterfly house, education centre and cafe.
According to the LDA, the residential development on the site would occupy 0.4ha of a 2.4ha area currently used as a caravan club.