Onesacre Hall

Onesacre Hall is a large house, now divided into two dwellings, with significant construction phases dating from around 1630-1640 and 1660-1670. The building is constructed primarily of ashlar sandstone, except for the left return, which is of thin-bedded rubble, with a stone slate roof. It has a modified H-plan, with only the left crosswing projecting to the rear, and is gabled. The main house is two storeys and an attic, with five windows on the first floor. Throughout the building, double-chamfered mullion windows are a prominent feature, some transomed, with 20th-century leaded casements. Dripmoulds are present on both floors, along with carved kneelers and chamfered gable copings, which originally supported apex finials. The main hall block’s right-hand door features a moulded, quoined surround and a lintel with a bi-arcuate shaped soffit, carved spandrels, and a 20th-century part-glazed door. To the left of the door is a cross-mullion window, with two similar windows above and a three-light mullion window in the attic. A short ashlar ridge stack is located to the right. The left crosswing contains two three-light windows on both the ground and first floors, and another window in the attic, with a shouldered and corniced ashlar ridge stack. A short ashlar ridge stack is also located on the right crosswing. A blocked window sits above an inserted door in the short right return to the hall block. The right crosswing features a cross-mullion window on the ground and first floors, and a short corniced ashlar end stack. The rear of the hall block includes a four-light window with a king mullion on the ground floor, two two-light windows above, and a single attic light. The right crosswing has a four-light window with a king mullion and transom on both the ground and first floors, and a three-light window in the attic. A wing to the left has a large projecting stack terminating in twin corniced flues. The left return displays a two-light window with a hoodmould to the right, and a small 20th-century projecting stack to its right. The right return has a three-light window to the left and an altered four-light window to the right. Two four-light windows are located on the first floor, and two three-light dormers are present on the roof. The interior of the wing to the left retains stop-chamfered spine beams with run-out stops; the hall and wing to the right feature rich bead-moulds. The wing to the right retains a large arched kitchen fireplace in the rear room. A shallow projecting stone fireplace is found in the hall.