Centric Community Projects is a nationwide scheme to provide free space for charities and non-profit organisations by finding vacant properties from landlords willing to make them available on good terms.
There are currently two properties available in the area – one in Cleethorpes and one in Grimsby.
You can see details of the properties on their website here
http://centricprojects.org/properties/?types=0&locations=lincolnshire&submit=Search
Find out more about the scheme here http://centricprojects.org/about/ and read their FAQ to find out about the process and how your organisation might be able to get access to these buildings.