Property data
Sale history
Date Paid price Annual growth After inflation
Oct 2000 £300,000 18.9% 16.8%
Aug 1996 £147,000 na na
Bedrooms
na
Type
Flat
Council tax band
na
Archived listings
History:
Archived rental listing for Flat 1 5 Onslow Square. Advertised on multiple portals. It was added on 23/06/2011. It last appeared Jul 2011.
Photos:

There are 3 archived estate agent listing photos for Flat 1 5 Onslow Square.

Photos for 5 Onslow Square
View photos
Advertiser remarks:
  • 3 bedrooms
Planning applications
Planning ref:
December 2020 ARB/20/06213
Type:
Tree and hedge works
Status:
Application approved
Address:
Flat 1, 5 Onslow Square, LONDON,
Description:
Prune 1 x Holly

Planning ref:
April 2018 LB/18/00903
Type:
Heritage application - conservation issues and listed buildings
Status:
Application approved
Address:
Flat 1, 5 Onslow Square, LONDON,
Description:
Alterations to fenestration at ground floor level including changing the swing of reception room double doors leading to communal garden area from inward to outward; removal of security gates; replacement of double glazing to French doors with security glass; replacement of obscured glass windows in upstairs bathroom with painted timber sash clear glass windows maintaining the existing 12cm external reveal

Planning ref:
April 2018 PP/18/00902
Type:
Full and householder planning application
Status:
Application approved
Address:
Flat 1, 5 Onslow Square, LONDON,
Description:
Alterations to fenestration at ground floor level including changing the swing of reception room double doors leading to communal garden area from inward to outward; removal of security gates; replacement of double glazing to French doors with security glass; replacement of obscured glass windows in upstairs bathroom with painted timber sash clear glass windows maintaining the existing 12cm external reveal

Planning ref:
March 2018 LB/18/00896
Type:
Heritage application - conservation issues and listed buildings
Status:
Application approved
Address:
Flat 1, 5 Onslow Square, LONDON,
Description:
Partial removal of centrally located unoriginal wall (kitchen partition wall) and raising of dropped ceilings to kitchen and hallway at rear ground floor level (Listed Building Consent only)
Frequently asked questions

According to HM Land Registry price paid data, Flat 1 5 Onslow Square last sold for £300,000 in October 2000.

Flat 1 5 Onslow Square is in postcode SW7 3NJ, in South Kensington. You can also view HouseMetric's sold-price page for Onslow Square, SW7 3NJ or analysis of the South Kensington property market.

HouseMetric combines HM Land Registry price paid data, Energy Performance Certificate data and Ordnance Survey/open data. The data were last updated 1 June 2026. Figures such as indexed values and local valuation ranges are calculated estimates for context, while official records can change as public datasets are updated.

For more detail on HouseMetric data sources, update frequency and valuation methods, see the HouseMetric FAQs.