Mauchline, Gavin Hamilton's House

This is a late 17th century three-bay, two-storey town house, which was extended to the south around 1760 and further altered in the early 19th century. The house is L-shaped and constructed from harled masonry, with crowstepped gables and exposed dressings of red ashlar sandstone. It is adjoined to the late-medieval Mauchline Castle, also known as Abbot Hunter's Tower (listed building 14471), by an early 19th century pend, and the two buildings once formed a single residence. During the 18th century, the house and castle were the residence of Gavin Hamilton, a close friend and early patron of the poet Robert Burns.

The original front, or west, elevation is three bays and roughly symmetrical, with a later, off-centre red brick chimneystack. A single-bay, segmental-headed pend, with a small first-floor window, leads to a moulded doorway on the north elevation of the house. A 17th century stone forestair serves the first floor of the castle and features carved stonework to the nosings. The rear, or east, elevation of the original house is blank.

The south elevation is abutted by an 18th century wing, which was extended and raised around 1800. This wing has a piended roof to its east end. The front, or north, elevation of the 18th century wing is four bays, with a doorway at the re-entrant angle. This doorway has engaged pilasters and a pro-style Tuscan Doric portico. The gabled east elevation is single-bay, with crowsteps and misaligned windows. The rear, or south, elevation of the later wing faces Mauchline Old Church and churchyard and is abutted by a large grave marker. The west elevation of this wing is two bays and contains a timber door with flush panels and rendered rybats.

The roofs are slated with replacement rainwater goods. There are ashlar red sandstone crowsteps, skewputts, and chimneystacks with tapered clay cowls. Window openings have rendered flush margins, with some exposed ashlar red sandstone. Most of the windows are twelve-pane timber sash, largely dating from the early to mid-19th century, although the glass is generally replacement. There is also a six-light replacement timber casement and an eighteen-pane fixed light on the south elevation of the 18th century wing.

Rubble boundary walls, constructed from red sandstone to the south and squared rubblestone to the north, surround the property. The southern entrance has ashlar red sandstone gatepiers with ball finials, cast iron gates, and curved flanking walls.

The interior was not inspected in 2017, but according to Davis (1991), it incorporates the vaulted remains of an earlier ancillary building, potentially contemporary with the adjoining late-medieval Mauchline Castle (Abbot Hunter's Tower, listed building 14471).