The following text is from the original listed building designation:

GILLINGHAM
TQ7668NW MANSION ROW, Brompton 686-1/5/15 (West side) 24/02/50 No.15 Mansion House (Formerly Listed as: MANSION ROW, Brompton Nos.9-12, 12A, 14, 15 (Consecutive) Mansion House (No.15))
GV II
House, now retirement home. Late C18. Rendered brick, brick stacks behind the ridge, roof not visible. PLAN: double-depth. EXTERIOR: 3 storeys and basement; 2-bay range. Parapeted front has a plat band, off-centre doorway has a mid C20 plain surround with an overlight, pediment and glazed door; full-height canted bays have sunken panels beneath flat cornices with modillions, 8/8-pane central and 4/4-pane flanking sashes. The left-hand return has a 2-storey canted bay with modillions. INTERIOR: has a central through hall with a right-hand axial stair flight with curtail stick balusters and swept rail, 6-panel doors and panelled shutters.
Listing NGR: TQ7625968830

English Heritage, List of Buildings of Special Architectural or Historic Interest (Map). SKE16160.