At one stage Firbeck had two great houses. Firbeck Hall and Parkhill house. Parkhill house was knocked down in 1935. Firbeck hall has been in a poor state of repair since the 2nd world war. See more here. http://www.firbeckhall.net/campaign.php
Originally the house was a small estate. A stockbroker bought in the 1930’s and turned it into an exclusive country club. The Royals were known to visit from time to time. BBC also used to host a Saturday night dance show from there in the 1930’s.
Recently the Hall has been sold on from one developer to another. West Lodge house has been renovated, I am guessing this was the original roadway into the site, but the gate has gone and all that remains is a muddy track. You can rent this Lodge if you want to.
I was told that the developer has to make good Firbeck hall, before he can build properties on the rest of the site.
I managed to take a picture of the house, by going around the back and taking a picture from the fields.
The footway into the site is across from the BlackLion pub, but is blocked off.