Make an FOI request to the relevant council, roughly as follows:
"Sirs
Under the provisions of the Freedom of Information Act 2000, I request the following information:
1. Any information which the council holds in respect of the ownership of land, formerly used as a car park, situated on New Road, Sometown, between those properties numbered 185 and 193 ;
2. If the council has control of the land (either as owner or leaseholder), any plans which the council has (or may be considering) in respect of its future use or sale ;
3. Any information which the council holds in respect of covenants or other restrictions upon the use of that land ; and
4. Any information which the council holds in respect of planning applications relating to that land ;
5. Any other information which the council may hold in respect of the future use (or proposed future use) of that land".
Yours faithfully"
Unlike applications for information under the Data Protection Act, which can attract a fee, there is normally no charge for FOI applications.