21 Regent Terrace, Edinburgh

William Playfair, designed 1825, built 1826-1833. Part of long terrace of 34 classical 3-bay townhouses; originally 2-storey, attic and basement elevations (many have additional later 3rd storeys; 21 Regent Terrace retains its original 2-storey and attic elevation) punctuated by 2 18-bay, 3-storey pavilions with 3-bay advanced sections to each end (Nos 11-16 and 23-28) and with 12-bay, 3-storey section to the western end (Nos 1-4); terrace stepped down at intervals to follow slope of road. Droved ashlar to basement; polished ashlar to upper floors; predominantly coursed squared rubble with dressed margins to rear elevation. To principal elevation: base course; dividing band between basement and ground floor; dividing band and cornice between ground and 1st floors; to 1st floor, continuous cast-iron trellis balcony with Greek key border; band course above 1st floor windows; eaves cornice; blocking course. Doorpiece of fluted attached Greek Doric columns. Regular fenestration to principal elevation; architraved windows to ground and 1st floors; panelled aprons to ground floor windows; predominantly regular fenestration to rear elevation.

SE (PRINCIPAL) ELEVATION: 2-storey and basement elevation. To basement, to centre bay, timber-panelled door with 3-light fanlight in segmentally-headed opening; windows to left and right bays. To ground floor, to right bay, steps and platt overarching basement recess leading to 2-leaf timber-panelled door with triple-circle glazed letterbox fanlight.

NW (REAR) ELEVATION: 3-bay elevation with shallow 2-storey advanced bay to centre. Eaves course.

GLAZING etc: predominantly 12-pane glazing; 16 -pane glazing to 1st floor to right bay to rear elevation; glazing predominantly in timber sash and case windows. M-roof with central valley and mansard profile to front; graded grey slate; stone skews and skewputts. To E and W, mutual ridge stacks, preceded by individual octagonal flues to front; predominantly circular cans.

RAILINGS AND BOUNDARY WALLS: to front, edging basement recess and platt, stone coping surmounted by cast-iron railings with dog bars, spear-head finials and distinctive circled border. To rear, forming boundary of garden, random rubble walls with predominantly flat coping.