Errwood Hall stands in the Goyt Valley, it is now only a ruin but in it's heyday was a grand country house and very important to the community that existed around. Designed by the architect Alexander Roos it was built in 1840 - 41 for Samuel Grimshaw a wealthy merchant with business in Manchester, standing at over 1000 feet above sea level and set in over 2000 acres the Hall was pretty much self sufficient with its own greenhouses and growing areas, game, fishing, Chapel, Buriel Ground, School, and even a Coal Mine.

For todays visitors to the Goyt Valley and Errwood Hall there can be no realisation of the thriving community that existed before the flooding of the valley, although the legacy of Erwood Hall can still be seen all around not least in the Colourful spring display of Rhodedendron & Azalea, most of which were collected by The Grimshaw family on their tours abroad on their private Yacht the Mariquita. There still remain, many plant species that are not native to the Valley of the Goyt, also the buriel Ground high above the Hall still remains, and if you take the pathway from Castedge behind the Hall (Signposted) you come to a small round building erected in 1889 in memory of Mrs Grimshaw's Spanish companion Miss Dolores de Bergria, dedicated to St Josephs and known as St Josephs Shrine it is always open for travellers.

The last family member to live at The Hall was Mrs Mary Gosselin who died in 1930 and the Hall was emptied of all it's fine Art, porcelaine and rare furniture on the 16th June 1930. The sale was conducted over 5 days by the Macclesfield Auctioneers Turner and Son and contained 1,800 lots. It was already known that construction of Fernilee reservoir would begin which did start in 1931-2, so for a short while The Hall became a Youth Hostel, until 1934 when Stockport Corporation purchased all the land in rediness for the constrution of Errwood Reservoir, they demolished the Hall using the best stone for the water treatment works, which are situated below the Fernilee Reservoir Dam. When the water level of Errwood Reservoir drops significnantly you can see the remains of the lower part of the Driveway to the Hall, the Lodge, Cottages, Farms and the Old Packhorse Bridge which were at the heart of this community, the last time these were visible was 1991.