Ampherlaw House and doocot, near Carnwath

Ampherlaw House and Doocot, near Carnwath

Ampherlaw House is a former laird's house of irregular plan that has developed in multiple phases over several centuries. It may contain earlier fabric at its core, but largely dates from the 18th century, with additions and alterations from the 19th and early 20th centuries to the east, west, and rear (north) elevations. A lectern-style dovecot, thought to date from 1777, is attached to the eastern part of the house.

The lands of Ampherlaw were historically owned by the Somerville family from at least the 16th century, whose principal seat was Couthally Castle, near Carnwath (now ruined). A branch of the family lived at Ampherlaw. The settlement is first recorded on William Roy's military survey map of 1752–55, and by 1816 Forrest's county map names the owner as "Somerville Esquire." The Ordnance Survey Name Book of 1858–61 describes the property as a large, two-storey farmsteading dwelling house belonging to Dr Samuel Somerville (d.1874), who was treasurer of the Royal College of Physicians in Edinburgh. From the 1870s until the 1940s, the house was largely let as a shooting estate and was briefly used as a private convalescent home. It is now a private residence.

The main block is two storeys and attic, four bays wide, rectangular in plan, and dates from the 18th century. The exterior is rendered with stone margins. The entrance door has a two-pane fanlight and a stone cornice above which is inscribed: "I.F. 1778 W.S. [and] M.S. 1815." A rectangular plaque above carries wheatsheaf decoration and reads: "S.S. [and] J.L. 1777." Later flanking additions extend on either side of this main block. Attached to the east elevation is a part-gabled infill addition, probably of the early 19th century, which is lower in height and set back from the building line. At the easternmost end of the house, a single-storey gabled section — probably dating from the 18th century and once detached — connects the house to the dovecot at the rear. A single-storey dining room extension is attached to the western section. Canted bay window additions were made to the front (south) elevation in the late 19th century; earlier mapping indicates these were added between 1896 and 1910. An entrance porch and conservatory were also added around this time but were later removed.

The windows are predominantly timber sash and case frames with a mixture of multi-pane glazing patterns throughout. Three dormer windows break the roof eaves on the front elevation: the outermost two are canted and the central one is pedimented. The roofs are slated with a mixture of end and ridge chimneystacks.

Several carved pediments of particular note are found on the house. Two pedimented pedestrian entrances and a larger central carriage entrance lead into a paved courtyard at the rear. One of the pedimented entrances depicts a figure wearing a headdress and ruff, playing a lute. A further carved figure on the front elevation at the east end depicts Charity. A pedestrian entrance set into the boundary wall carries a pedimented lintel depicting a crown and a cross pattée (also known as a cross formy), topped by a rounded finial. These pediments appear to pre-date the current house and may have come from Couthally Castle or from an earlier house on the site.

The rear (north) elevation includes a mono-pitched corridor addition and two single-storey ranges accommodating kitchen, utility, and garage areas, forming a U-shaped courtyard. There is also some late 19th or early 20th century infill to the rear, including a former drill hall, which — as shown on the second edition Ordnance Survey map of 1896 — incorporated the dovecot into the main body of the building.

The interior was inspected in 2023. The principal rooms retain a number of 18th and 19th century decorative features, including pilaster detailing, scallop shell plasterwork, moulded cornicing, timber window shutters, and decorative fire surrounds. A central spiral stone staircase runs through the house. Above a door leading into the entrance hall from the rear of the house is a marriage lintel inscribed: "JS. JS. 1539. JS. AS. 1570. JS. MC. 1610 / WS. EH. 1656. JS. JC. 1681. JS. MD. 1723." This lintel may also have originated at Couthally Castle or at a previous house on the site.

The dovecot is rectangular in plan in the lectern style, constructed in rubble with a rat course, stepped skews, and scrolled skewputts. The slated roof slopes to the south and has a stone ridge. The south wall has a semi-circular entry with keystone detailing, and there is a rectangular window opening in the east elevation at ground floor level.

The house and garden are enclosed by a tall rubble boundary wall running alongside the road. There are two vehicle entrances, one giving access to the main drive and the other to a service drive. The gatepiers are squared, built in coursed stone, and have square caps. At the time of listing in 1971 there was a pedestal-type sundial, dated 1778, on the front lawn; this was removed at some point after 1971.

Ampherlaw House sits in a roadside position on a minor road, surrounded by garden ground, woodland, and farmland. The historically and functionally related Ampherlaw Farmhouse and steading to the northwest — dated 1850 and reconfigured in the later 19th century — remains intervisible with the house and is listed separately at category C. There has been minor housing development to the north of the northern boundary, but the designed landscape and rural setting of the site remain largely unchanged from that shown on the second edition Ordnance Survey map of 1896. Together, the house, dovecot, and neighbouring farmhouse and steading form a well-preserved group of related agricultural and residential buildings that illustrate how this small country estate evolved over time.