Opening Dates & Times The grounds, playgrounds and lakeside walk are now open daily at 10 am until 5 pm. The house opens on Saturday 31st March 2018 until 31st October. The Old Sawmill Tearoom is now open for the season from 10 am. We look forward to welcoming all our visitors back this season.The gardens, playgrounds and lakeside walks are open daily from 10:00am to 5:00pm. The Old Sawmill Tearoom will also open daily from 10:00am to 4.30pm.The house is open for visitors from 1:30pm to 4:30pm (last entries 4:00pm) on Saturdays, Sundays and Wednesdays. We also open the house on Friday afternoons, during August.The grounds at Mirehouse are dog friendly. Dogs are welcome in the grounds on a short lead at all times. As the lakeside walk goes through a working farm, please keep dogs well away from livestock.