Looking at 1861 (RG9 1075 43 16) the Motts are at the "Yorkshire Grey" which is in HIGH Street, in the parish of South Weald.
Looking at the enumerators district, this looks like the part of what we would now call Brentwood High Street, that goes from the end of the shopping area down to the M25. This is South Weald parish (although nowadays thought of as Brentwood Town)
I wonder about the Yorkshire Grey. Pubs down there are the Golden Fleece and The NAgs Head, ther may be others, but I dont know of a Yorkshire Grey nowadays.