SW7 3LS - 3 bed south kensington garden flat in Onslow Square, SW7 3LS

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3 bedroom flat for sale in Onslow Square, South Kensington, London, SW7

Summary - 69 STOREROOM 3 ASSOCIATED WITH FLAT 3 ONSLOW SQUARE LONDON SW7 3LS

3 bed 2 bath Flat

Spacious three-bedroom with private square views and porter-serviced lift access.
- Approximately 1,539 sq ft of lateral, well-proportioned accommodation
- South-facing drawing room with four façade windows and garden outlooks
- Three bedrooms, two bathrooms; principal suite and two further bedrooms
- Live-in porter, large lift and immaculate communal parts
- Private communal gardens and floodlit tennis court exclusive to residents
- Leasehold with a long remaining term (973 years)
- Very high annual service charge (£23,175) — substantial running cost
- Solid brick construction (pre-1900) may need insulation or upgrades
Set on the desirable North Terrace of Onslow Square, this substantial three-bedroom apartment occupies a wide lateral footprint across approximately 1,539 sq ft. The second-floor home features a large south-facing drawing room with four façade windows that flood the principal entertaining spaces with natural light and deliver far-reaching views over the private communal gardens.

Designed for comfortable family living, the principal suite sits at one end of the apartment with two further bedrooms at the opposite end, offering clear separation between private and communal areas. The building benefits from immaculate communal parts, a large lift and a live-in porter. The square itself provides extensive East Garden grounds, private West Garden lawns and a floodlit tennis court — rare outdoor amenities in central London.

Practical details: the property is leasehold with an unusually long remaining term (973 years) and is served by a community heating scheme. The service charge is high (listed at £23,175 pa) and should be factored into ongoing costs. The building dates from 1845 and has solid brick walls (no built-in insulation assumed), which may be a consideration for buyers planning extensive energy-efficiency upgrades.

This location is exceptionally well connected — South Kensington station is close by and central London landmarks, museums, excellent schools (including the Lycée Français) and Kensington Gardens are all within easy reach. For families seeking generous interior proportions, private gardens and concierge-style services in one of London’s most prestigious squares, this apartment offers a compelling central base, but with significant service charges to consider.

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