Penallta Colliery Baths Building

Inside the building, the entrance from Penalltau Road and the base of the staircase have green glazed tiles with a black dado band. This leads into the baths on one side and the canteen on the other. The concrete cantilevered stair is well lit by large windows. The canteen has a panelled dado with a curved skirting moulding for easy cleaning, and roof lights as well as its large bay front. The arrangement of the showers is the same on both floors, with lockers filling the wings to the east and south, and showers filling two square areas between. The lockers and showers on the east were for dirty clothes, with a separate staircase from the pit-head side of the building providing access, and those on the south for clean. The original plenum lockers with hot air piped through them are in place on the ground floor but have been partially removed above. The original showers are still in position, with semi-circular pipes to the shower heads and white tiled individual shower stalls. The showers are colour coded with single coloured tiles on each stall to indicate cleaning rotas. The top floor showers are well lit with ample rooflights. A central light-well with white glazed tiling provides ample light to all shower areas. A basement level on the north side provides access to the plenum hot air and water tanks and the boilers, which are located in a prefrabricated extension to the west.

Pithead baths block. The plan is irregular, forming a stepped shape with several wings and a central light-well. Built into the hillside, it has two storeys at the front and three at the rear. Of brown brick with white concrete dressings and multi-pane metal framed windows, and with a flat felted roof with long glazed rooflights. Front elevation, to Penalltau Road, has a continuous row of windows with concrete mullions, and a tall blank wall above topped by a deep concrete eaves cornice. Tall water tower at S end, emphasised by vertical windows on two sides to the staircase occupying its lower part. Single storey wing to the front and S side contained the Medical Centre, which is entered by a sloping formerly covered walkway from N. The main doorway gives onto the base of the staircase and the water tower. The entrance has vertical banding of brick headers to either side, multiple string courses and small windows, with a concrete canopy over the doors and a fanlight with a glazing pattern of small squares and horizontal rectangles. Another single-storey wing to S contains the canteen, the principle feature of which is a continuously-glazed semi-circular front, making it originally an extremely light room: further well-lit areas of canteen and kitchens to S and E. A low boundary wall to Penalltau Road is built of similar brown brick with concrete cappings and some of the original metal railings still in place.

The rear and sides of the building have continuous bands of metal-framed windows lighting the shower and locker areas, with white concrete bands and mullions and horizontal multi-pane metal windows. Circular ventilator openings are picked out with white concrete surrounds; some metal ventilators at base. There are doorways into the boilerhouse level from N and into the baths area from the pithead to E; concrete canopies over horizontal-panelled doors. Rear staircase with vertical metal windows over 3 storeys.