Onslow, Onslow Gardens, London, SW7 3AP

Description Extending to 4,268 sq ft, Osprey House is a substantial six-bedroom townhouse on one of South Kensington’s finest garden squares.

The Grade ii-listed house has been finished to an exacting standard, with generous entertaining rooms, several terraces and off-street parking.

The raised ground floor is arranged around an entrance hall finished in Venetian plaster. A Matrix kitchen has Calacatta quartz worktops, a large central island, and Gaggenau and Barazza appliances.

French doors open from the kitchen onto a terrace, while an adjoining dining room is wrapped in hand-painted de Gournay wallpaper.

A utility room, guest WC, and off-street parking are also found on this level. Two interconnecting reception rooms span the first floor.

Both retain original marble fireplaces fitted with gas fires, while high ceilings, decorative cornicing, and tall shuttered windows lend a sense of grandeur to the rooms.

Beyond lies a glazed conservatory, which opens onto two terraces and draws light deep into the house. A separate library with custom-built bookshelves completes the floor.

The principal suite extends across much of the second floor and includes bespoke wardrobes and office space.

Book-matched marble lines the ensuite bathroom and shower enclosure, complemented by Venetian plaster walls, twin surface-mounted basins and a custom marble and timber vanity.

Three further bedrooms are arranged across the third floor, alongside a family bathroom and an additional shower room. The lower ground floor provides excellent secondary accommodation.

A 26 ft family room opens onto a patio, while two further bedrooms each have an ensuite bathroom.

A separate kitchenette, additional patio, three vaults and a climate-controlled AV room complete the floor. The flexible arrangement would work equally well for guests, older children or staff.

Air conditioning serves the principal suite, top-floor bedrooms, lower-ground accommodation and conservatory.

Further details include underfloor heating, bespoke lighting, integrated audiovisual systems, CCTV and a monitored Secom alarm, which complete this best-in-class home.

Onslow Gardens is one of South Kensington’s most desirable addresses, lined with white stucco-fronted houses and centred around leafy communal gardens.

The restaurants, cafés and shops of Old Brompton Road, Fulham Road and Gloucester Road are within easy reach, as are the museums of South Kensington.

Gloucester Road and South Kensington Underground stations provide convenient connections across London, while Hyde Park lies approximately half a mile away.