Brook Hall with boundary wall adjoining the north elevation of the C20 range

Brook Hall is a merchant's house with origins in the 16th century, subsequently altered in at least two phases during the 17th and 18th centuries. The building was refronted in the late 19th century and extended around 1933. In the 2010s it was converted to flats.

The core of the building is timber-framed. The north elevation fronting Vicarage Street is rendered, while the east elevation fronting Broad Street displays a yellow brick frontage. The rear 20th-century extension is of red brick. The entire property is roofed in slate.

The building is arranged in two principal ranges on an L-shaped plan. The older, timber-framed range fronts Broad Street to the east, with a brick-built 20th-century range to the west running along the north plot boundary.

The principal east range is of two storeys plus attic. The roof comprises two north-south orientated gables intersecting an east-west orientated gable roof parallel with Vicarage Street, with two cross-wing gables to the east elevation.

The east (Broad Street) elevation is arranged across six bays in a formal, free Domestic Revival style. The southernmost and two northernmost bays project forward as cross-wings. A chamfered stone base runs across the entire elevation beneath the low cills of the ground-floor windows. The main entrance is situated within a gabled porch projecting forward of the cross-wings in the third bay from the north. The porch contains a shouldered-arched doorway with a six-panelled door with stained glass to the two uppermost panels, set within a round arch with a heavy keystone, cusping and moulded imposts with floral bases. The frieze of the round arch is inscribed with the letters 'BROOK HALL'. The gable roof above is supported on moulded timber brackets and has a moulded timber fascia. A second entrance is located in the southern cross-wing, comprising a half-glazed door with nine fixed panes and a rectangular overlight above, set within a moulded surround with a flat-arched stone lintel with an implied keystone and a much-weathered stone hood above. The two recessed central bays and two bays of the northern cross-wing each carry a six-over-six glazed timber sash window set within a moulded surround matching that of the southern entrance, with weathered stone hoods and implied keystones. On the first floor, each bay carries a six-over-six glazed timber sash window within moulded surrounds matching those of the ground floor, although the three recessed bays do not have hoods. The six windows are unified by stone strings to their heads and cills. A centrally-placed round-arched window is set within the gable of each of the two cross-wings, each with similarly moulded surrounds to the lower windows and containing a three-over-three sash. The roof over the brick-fronted east elevation is supported on moulded timber brackets with moulded timber fascias matching those of the porch.

The north elevation of the older east range is arranged across three bays, the easternmost bay being as wide as the two western bays combined. The first floor is jettied with four moulded timber scroll brackets. Over the first-floor window of the easternmost bay is a jettied, gabled dormer. The ground floor carries two timber sash windows and a two-light casement with stained-glass leaded lights in the westernmost bay. The sash window to the easternmost bay has six-over-six glazing and is set within an elaborately moulded surround, while the window to the central bay has two-over-two glazing and horns, and is set within a more simply-moulded surround. The first floor carries three timber sash windows set within moulded timber surrounds, the westernmost having two-over-two glazing and horns, and the two easternmost having six-over-six glazing. The gabled, jettied dormer contains a three-over-three glazed timber sash window. A large red-brick chimney stack rises through the ridge of the northern wing of the east range.

Attached to the western end of the northern, east-west orientated wing is a single-storey 20th-century range under a gable roof with two gable dormers to each of the roof slopes. The ground floor carries a series of timber mullion and transom windows with stained-glass leaded lights under stone lintels, with each bay separated by a stepped brick buttress. There is a modern timber doorway at the eastern end of the north elevation. At the western end of this range is a single-storey flat-roofed outbuilding constructed of red brick, and an adjoining single-storey brick toilet block to the north.

The interior is understood to retain significant historic fabric from the 16th, 17th and 18th centuries, including wall paintings, finely-carved exposed timber framing, timber panelling and fine plasterwork.

A tall boundary wall adjoins the north elevation of the 20th-century range running north-west. It is constructed of historic, possibly 18th-century brickwork.