The main house dates back to the 1840s and has been carefully restored, along with the three-bedroom Rose Cottage, that is available for sale by separate negotiation.
Impressive gardens include tennis and croquet lawns, bluebell woods, rockeries, vegetable plots and a walled fruit garden.
There's also a summer house, a potting shed and an aviary.
A gym with glass double doors is to the end of the Colonnade, while the main house has a grand reception hall, a drawing room, and a dining room.
A sitting room known as The Old Map Room, has a wall map of the area from the 1700s.
The breakfast kitchen features bespoke oak cabinets, a white Aga and a Lacanche range oven. A pantry gives access to one of two barrel vaulted cellars and strongroom.
A utility room with woodburner dates from the 16th Century, with a door revealing a staircase to the office above.
First floor bedrooms include one with carved wardrobes, a cast-iron open fireplace with marble surround, and an en suite bathroom with an original Art Deco suite.
Three more bedrooms share a bathroom with a cast iron Japanese freestanding bath and a shower.
With second floor loft storage is a shower room shared by two final bedrooms.
The Hall has two drives with electric gates, garages and a workshop with loft.
Rose Cottage, attached to Spen Hall on the east elevation, has walled gardens.
Spen Hall, Spen Lane, Gomersal, has an asking price of £975,000, with Carter Jonas estate agents, Harrogate.
1. Spen Hall, Spen Lane, Gomersal
The gardens include lawns, bluebell woods, a tennis lawn, rockeries with ornate stone staircases, and a walled fruit area. There's also a croquet lawn, vegetable plots, a summer house, potting shed and an aviary. Photo: Carter Jonas estate agents, Harrogate
2. Spen Hall, Spen Lane, Gomersal
There are many outdoor seating areas, and the attractive Colonnades offer shade close to the Hall. Photo: Carter Jonas, Harrogate
3. Spen Hall, Spen Lane, Gomersal
The kitchen, with bespoke oak cabinets, has a white Aga with bespoke cabinetry, and a Lacanche range oven. Photo: Carter Jonas, Harrogate
4. Spen Hall, Spen Lane, Gomersal
One of the light and spacious reception rooms, with sash windows. Photo: Carter Jonas, Harrogate