Thanks satchers and I think it right Sydenham should be consulted if a new pool is potentially moving in their area. I'll imagine they'll be delighted at the chance of having a second pool.
People can always justify any unfair advantage that falls in their lap.

According to wiki, the demographics are fairly even: 31,300 in se23 Vs 28,095 in se26, so opinion will likely be evenly divided. And the consultants will conclude after an expensive study of the data that se23 want a swimming pool and se26 want a second pool. Well well.

Surely the council just need to decide if se23 deserve their pool back? Why is this so hard for them? If they can show that the area is well served by nearby pools, that there is no important historical interest in keeping swimming here and there are better places to build a pool that will serve more people, then just present the data honestly.
If it is clear cut, I for one would be happy to move on and we can decide what community facility we want on the site instead.