 | | Thelnetham Windmill Location Grid reference - TM 011 789. OS Sheet 144. About 7 miles W of Diss, off A1066, in Mill Lane, Thelnetham. Opening Times Easter Monday, late May & August Bank Holiday Sundays, & usually the first Sunday in July, August & September, 11.00 – 17.00. Parties by prior arrangement Enquiries Mark Barnard, Suffolk County Council Tel - 01473 264755 E-mail mark.barnard@et.suffolkcc.gov.uk | |