Nantlys

Nantlys is a Victorian country house built predominantly in Elizabethan style with some Gothic detailing. It is constructed in red brick with stone dressings, featuring two subsidiary single-storey service ranges positioned at the west end. The main building rises to two storeys plus an attic, with three principal elevations facing north, east and south, all arranged in carefully composed asymmetry. The roofs are of slate with coped red brick gables. Hipped-roofed attic windows project from the western part of the main range, while sets of brick chimney stacks are positioned diagonally on single plinths. Throughout, the windows are of the sash type, set between stone mullions and running behind stone transoms.

The main elevation faces north-east and is organized in seven bays. From the left, these consist firstly of a lateral brick chimney breast with Pennant crests. Secondly comes the main entrance, which is set within a stone porch featuring a hipped roof, sidelights, and 4-centred arches supported by columns with capitals in early Gothic style. The entrance itself is a Tudor-arched doorway with two doors of three panels each and an overlight. Above the porch sits a two-light transomed and mullioned gabled window with finial. The third and fifth bays each contain similar upper windows but with hipped roofs, flanking a wider gabled fourth bay. This fourth bay has a five-light window with two transoms in the ground floor rectangular projection, a three-light transom window on the first floor, and a small two-light attic window in the apex of the gable. The sixth and seventh bays share a common hipped roof with terra-cotta finials, each containing a two-light hipped-roofed attic window. The sixth bay displays three-light transomed and mullioned windows on both ground and first floors, whilst the seventh bay has two-light transomed windows on both ground and first floors.

The garden elevation facing south-west follows a similar style. A small polygonal conservatory with gablets, added at an early date, stands against the garden entrance bay and covers a Tudor-style rear doorway. The elevation is divided into two main parts: a two-window left section of 2½ storeys with hipped attic windows, and a four-window right section featuring a small attic gable to the left and a larger gable to the right. All windows incorporate mullions and transoms with sashes.

The irregular east-facing end elevation features a very large canted-sided single-storey bay window at the left, followed by two windows above and below, the first crowned with a small gable. To the right stands a larger gable containing five-light windows positioned both above and below.

Single-storey western projections extend from both front and rear, each with a slate hipped roof and gablets. The northern projection serves as a game larder and incorporates a central square louvered turret with pyramidal roof. A central three-light mullioned window is flanked by two-light mullioned windows on each side.

The interior plan links the front and rear main entrances via a corridor running through the staircase hall, from which the main staircase rises to the side. To the left is the library, with double doors leading to the drawing room beyond; to the right is the dining room.

The library is defined by two fluted Tuscan columns in pine positioned between pilasters at its entrance area. Original bookshelves remain in situ. A marble fireplace with surrounding mould and small panelling above occupies a prominent position. A connecting round-headed doorway to the drawing room features panelled pine doors whose tops are formed as quadrants decorated with radiating flutes. The drawing room contains a panelled ceiling with circular and octagonal motifs, a panelled dado, and a panelled white marble fireplace featuring Gothick motifs.

The dining room displays a panelled ceiling with a cornice incorporating small modillions. A black marble fireplace in similar Gothic style occupies the room. The hall contains a staircase with closed strings, pineapple newels, and twisted balusters, alongside a three-light window with stained glass and two transoms. A partly glazed staircase hall roof and three rusticated arches on each of the two sides of the gallery landing complete the hall's architectural composition.