No, they are definitely not paying for the spaces. I have had a letter back from a local councillor who says:
Re the use of Vernon Park car park by British Gas employees I am indeed aware of it. Initially some years ago staff from British Gas started using the car park and attempts were made to prevent this. Two problems arose with this approach, almost all the employees are Stockport residents and council tax payers and some became very aggrieved at not being given access to the park and the cost to the council of manning the gate was significant.
Since then British Gas, who have sponsored Britain in bloom, benches and the summer concerts in the park, agreed to provide security to ensure that 20 places plus the disabled parking spaces, are always kept free for the public, during weekdays and that the car park is not used by BG employees at weekends. And of course those members of the public benefit from the security on the car park when parking, BG have also met the cost of the remarking of the spaces.
So as you can see , they paint a few lines , send the security man over from the main buidling once a week and sponsor a bench ( that must dent their marketing budget, eh ! ) and then benefit from a free 60 space car park. They also avoid paying business rates which are rated at £1000 a space by the Valuation office. Presumably the council pay the rates on the car park though to avoid any unncessary inconvenience.
It would be both a sensible use of resources and a useful source of revenue if British Gas were charged an economic rent but this would appear to be beyond the commercial capabilities of the council. Easier to close a library or a park plant nursery. On Thursday Centrica, owners of British Gas, will post a £720 million profit, up 20% from last year. As their favourite song says, " Let it Snow, Let it Snow, Let it snow"