Growing space wanted

Looking for glasshouses and/or land for horticultural use for let or purchase even if major works is needed anything considered.

Ideally Hertfordshire, Bedfordshire.

I am looking for glasshouses, polytunnels or land to construct our own. We would require full access 7 days a week.

We require the site to grow plants and shrubs for our current business but do not wish to sell directly from the site.