Mount Ericht, New Rattray

Mount Ericht is an earlier to mid-19th century house, extended to the rear, and now converted into a residential home. It is two storeys and has a raised basement, originally a three-bay classical design. The exterior is painted render, with a raised base course, a ground floor cornice, continuous first-floor cill course and eaves cornice, and a blocking course. Some windows have tabbed cills and raised margins, and the windows feature stone mullions.

The principal, or southeast, elevation is dominated by the centre bay, which has steps and flanking dwarf walls with decorative ironwork railings leading to a doorpiece featuring a Doric-columned tripartite arrangement. The door has a deep-set panelled timber door and flanking narrow lights, with a single window above. The flanking outer bays are slightly advanced and contain full-height four-light canted windows.

The northeast elevation has two bays, with a window to the left and a door with a forestair leading upwards to the right, both at ground floor level. There are two further windows on the first floor, and a prominent grouped chimney stack to the left of the centre at the wallhead.

The southwest elevation is asymmetrically fenestrated, with windows to the basement and each floor above. It also has a grouped chimney stack similar to the northeast elevation. A later, piend-roofed wing is set back to the outer left.

The northwest, or rear, elevation features a lower wing projecting to the right. The original, set-back, piended outer bays have windows to each floor on the left, with a small window to the centre ground floor, giving way to a stair window above.

The windows are fitted with hardwood-framed double glazing, which has a late 20th-century timber pivoting style. The roof is covered with grey slates, and there are grouped, coped ashlar chimney stacks with decorative cans.

The interior contains fine plasterwork cornices and compartmented ceilings to the hall and principal ground floor rooms, the latter also featuring marble fireplaces. Some panelled shutters and soffits are present. A pilastered and pedimented screen door gives access to the stairhall, which features an early cast-iron radiator cover marked 'MESSENGER & CO, LOUGHBORO'. An elegant winding staircase has decorative cast-iron balusters and a stair window with coloured margins.

A small walled garden is located to the northeast, enclosed by ashlar-coped rubble walls, some of which are low with inset hooped ironwork railings.

A small cobbled courtyard, with two piend-roofed, squared rubble ancillary buildings, is accessed via pyramidally-coped square-section ashlar gatepiers and boundary walls to the east. One building has a segmental-arched gig-house opening, an ashlar front with a decoratively-astragalled round-headed window, and is partly roofless, while the other is a later addition. The courtyard is closed to the west by the rear of the former Secession Church, which is listed separately.

Extensive ashlar-coped rubble boundary walls run along the perimeter, punctuated by corniced, coped, and panelled, square-section ashlar gatepiers with decorative ironwork gates, and an adjacent pedestrian entrance to Boat Brae. Flat-coped, square-section ashlar gatepiers are also present to the northwest.