Lewisham are looking at introducing borough wide Sustainable Streets (the cynical amongst you will see it as just greenwashed CPZs, others will see
it as making the streets better for all roads users) ,
with Honor Oak consulted earlier this year and a Forest Hill consultation expected later this year.

This consultation has funding already so it is unlikely the developer will be paying towards it or influencing it though they may say they would be happy to have parking restrictions on new residents but you can't put in a restriction if there is no target/CPZ for your restriction so it would only work if a CPZ was in place before the development finished.

The council seem to have given up on parking enforcement on residential roads
and their argument seems to be that it costs more than it brings in but if you have a Sustainable Street/CPZ then they can use the revenue from parking permits to pay for parking enforcement.