a irritating neighbor

hi all where i am a tenant at my farm there is a house that backs on to my yard where the house is owned by my landlord and let out now for the last 2 years we have got on well when i took on the farm where my yard and sprayerr fill up is was a old shed and brambles and with land lord permisson we cleared it and sited our chem store and cabin ect any way neighbour next door husband has come home from overseas and doesnt like my yard being there complaining about the small pile or rubble and machienry being parked there
where do i stand as the land agent at first said it was no problem and now has took a u turn but no one said at the time that it would be a problem the yard being there