4 and 5 Kemble Park, and entrance arch between

Four and Five Kemble Park, with an entrance arch between them, comprise three distinct structures spanning a former driveway to Kemble House. The complex includes a 18th-century coach house and stables (now number 4), a lodge or garden house built in 1837 by architect Peter Frederick Robinson for Robert Gordon (number 5), and an arched entrance way completed in 1855 by architect Robert W Billings, also for Robert Gordon. All three elements are orientated north-south and built of limestone.

Number 4 Kemble Park originally formed one half of the coach house and stables range. It is a single-storey building with attic, constructed of limestone ashlar with sections rendered. The roof is covered in plain tile. The west elevation is rendered and features a roughly central entrance doorway with a wide window to its left and a small square window under a pediment in the eaves, plus a stone cross window to the right. The east elevation displays squared and coursed limestone with an octagonal oriel turret to the left, extending above the roofline with a pyramidal roof and a segmental-headed buttress below, and an octagonal chimney stack to the right. The southern gable end is crow-stepped with a gable doorway under a flat hood on moulded brackets. The building has a slightly offset stone plinth. Windows throughout the building are mostly 20th-century timber, mullioned and transomed at ground floor level, with 20th-century raking dormers housing timber casements. The abutment for the arch is built into the southern end, featuring a glazed arrow-slit window at ground floor. Access to the arch is gained via a stone-balustraded dog-leg stair with moulded stone capping and quadrant arches with carved bead moulding beneath each element.

The interior was entirely remodelled in the mid-20th century when the building was converted to residential use. Principal ground floor rooms feature plain moulded cornice with picture rails. Two stone fireplaces are present: one dating from the mid-20th century and another, later example in Tudor style. The area beneath the arch has been enclosed at the southern end of the house, with the moulded arch springing from ground level within. The first floor contains exposed pegged A-frame roof trusses with ceiled roof above the collars. The bedroom adjacent to the arch incorporates a corner seat within the turret and a doorway providing access onto the top of the arch.

Number 5 Kemble Park is a two-storey building with attic, built in 1837 in Tudor Gothic style. It is constructed of limestone rubble brought to course with limestone ashlar dressings, with Cotswold stone slate roofs. The building stands on a moulded plinth.

The south elevation comprises two irregular bays, with that to the right gabled. A small gabled porch with raised, coped verges and ventilator occupies part of the left bay, featuring a moulded four-centred arched doorway under a hood mould. A window in this elevation was converted to double patio doors in 2016. The first floor has a central eaves dormer with moulded surround and gable with kneelers and ventilator rising above the eaves, and another window opening installed in 2016. The right-hand gabled bay projects slightly forward and contains a three-light stone mullioned window with lozenge-pattern glazing and a similar two-light window with plain glazing above, plus two roof lights. The east elevation features a large square bay window, mullioned and transomed, with lozenge-pattern glazing and solid stone roof with two offsets and hipped ends. A two-light stone mullioned window is set centrally above, with an inset plaque featuring a blank shield and quatrefoil moulding. A large projecting rectangular stack with three Tudor-style chimneys in ashlar, carved with geometric designs and heavy caps, adjoins the southern abutment of the arch at this location. The south gable and east gable both have raised, coped verges with small ball finials and moulded kneelers. The north elevation has a slightly lower projecting gabled bay with a first-floor two-light stone mullioned window with lozenge-pattern glazing. The main entrance doorway is positioned on the right return under a two-centred arched stone lintel. The north gable end contains a timber casement window at ground floor and a two-light stone mullioned window with hood mould above, with moulded kneelers to the gable.

The interior was entirely remodelled in the early 21st century. Ground floor principal rooms have been opened into a single space with a modern limed oak stair with glazed balustrade inserted on the north side. A new stone fireplace in Tudor Gothic style was added in 2016. The area beneath the arch is enclosed at the southern end, with the moulded arch springing from ground level within. The first floor has been remodelled and the attic converted to accommodation. Exposed roof structure visible includes principal rafters and purlins of mid-19th century date, some bearing carpenters' marks.

The archway itself, completed in 1855 to designs by Robert W Billings, is constructed of limestone ashlar with squared and coursed limestone to the abutments and limestone dressings. The structure comprises three parts: outer walls and a central semi-circular moulded arch springing from ground level, with the ends of the central arch incorporated within both houses. The archway opening is straight-sided and segmental-arched with moulded bead edges, surmounted by a segmental-arched overthrow with moulded coping and a parapet with similar moulded coping that breaks upward with a carved cipher at centre. Segmental-arched drip moulding with circular boss terminals is set on either side of the opening. The west face displays a carved cipher for 1855 at centre, with bosses carved with ciphers for architect Robert W Billings (RWB, incorporating a set of dividers) and RG for patron Robert Gordon. The east side displays a central cipher for GORDON, with those either side for Elizabeth Anne Gordon and Anna Gordon. All three elements incorporate glazed arrow-slit windows opening into small rooms beneath the arch.