I see they bought and sold some land out of town to fund it as well as loads of residential and other development on the site itself. No doubt some redevelopment of the existing ground site thrown in and you can see how they've made more progress than we have.
Always amazes me how so many towns and cities around the country have massive development plots in or within walking distance of the town centre. Luton, Southampton, Sunderland, Middlesbrough, Cardiff, Swansea .... I'm sure there's more.
There is no similar site in Bournemouth.