Whilst it is not possible to have legal ceremonies at Osmaston Park you could always get the legal part out of the way in a registry office and then come and have a ceremony outside or inside in front of all your guests.
If this is of interest Please contact one of the following:
Cariad Personal Ceremonies Sue Dowell Celebrancy Trish Pringle
07961668996 07956227943 07931237211
email@example.com firstname.lastname@example.org trish@email@example.com