HM Land Registry records the plot of land for 20, Onslow Gardens, Wallington as measuring 429 m².

That makes it the 12th largest plot in the postcode, where all 15 other houses have recorded plot data.

20, Onslow Gardens, Wallington has an Energy Performance Rating (EPC) of E. This is based on the most recent assessment, dated 06 Apr 2017.

The property is connected to mains gas and has mostly double glazing. It is heated using a boiler and radiators (mains gas).

The most recent sale of 20, Onslow Gardens, Wallington completed on 22nd August 2017 at £725,000 and was recorded by HM Land Registry as a freehold house.

Since 1995 this is the property's only sale.

Values of comparable properties have risen by 16.6% over the period since August 2017.

• Sold Aug 2017£725,000

Since 2010 31 properties similar to 20, Onslow Gardens, Wallington have sold within a radius of 390 metres, per the Land Registry and our network of Estate Agents.

The latest, on the 12th February 2026, was 12, Cranley Gardens, Wallington, SM6 9PR, a freehold house which sold for £810,000.

Read more about house prices in SM6.

• Sold Feb 2026£810,000 | 5 Bed House12, Cranley Gardens, Wallington, SM6 9PR12, Cranley Gardens, Wallington, SM6 9PR
• Sold Oct 2025£780,000 | 5 Bed House10, Stanley Gardens, Wallington, SM6 9QW10, Stanley Gardens, Wallington, SM6 9QW
• Sold Feb 2025£700,000 | 5 Bed House16, Onslow Gardens, Wallington, SM6 9QN16, Onslow Gardens, Wallington, SM6 9QN
• Sold Jun 2024£710,000 | 5 Bed House7, Stanley Gardens, Wallington, SM6 9QW7, Stanley Gardens, Wallington, SM6 9QW
• Sold May 2024£755,000 | 5 Bed House9, Stanley Gardens, Wallington, SM6 9QW9, Stanley Gardens, Wallington, SM6 9QW
• Sold Nov 2022£875,000 | 4 Bed House52, Onslow Gardens, Wallington, SM6 9QQ52, Onslow Gardens, Wallington, SM6 9QQ
• Sold Sep 2022£950,000 | 5 Bed House7, Park Hill Road, Wallington, SM6 0SD7, Park Hill Road, Wallington, SM6 0SD
• Sold Aug 2022£825,000 | 5 Bed House36, Blenheim Gardens, Wallington, SM6 9PP36, Blenheim Gardens, Wallington, SM6 9PP
• Sold Jan 2022£875,000 | 5 Bed House53, Onslow Gardens, Wallington, SM6 9QH53, Onslow Gardens, Wallington, SM6 9QH
• Sold Mar 2021£912,500 | 5 Bed House10, Hawthorn Road, Wallington, SM6 0SX10, Hawthorn Road, Wallington, SM6 0SX
• Sold Dec 2020£805,000 | 5 Bed House23, Onslow Gardens, Wallington, SM6 9QL23, Onslow Gardens, Wallington, SM6 9QL
• Sold Nov 2019£790,000 | 5 Bed House22, Onslow Gardens, Wallington, SM6 9QN22, Onslow Gardens, Wallington, SM6 9QN
• Sold Jul 2019£615,000 | 5 Bed House5, Stanley Gardens, Wallington, SM6 9QW5, Stanley Gardens, Wallington, SM6 9QW
• Sold May 2018£745,000 | 5 Bed House14, Hawthorn Road, Wallington, SM6 0SX14, Hawthorn Road, Wallington, SM6 0SX
• Sold Feb 2017£790,750 | 5 Bed House51, Onslow Gardens, Wallington, SM6 9QH51, Onslow Gardens, Wallington, SM6 9QH
• Sold Mar 2016£527,500 | 5 Bed House4, Blenheim Gardens, Wallington, SM6 9PH4, Blenheim Gardens, Wallington, SM6 9PH
• Sold Nov 2015£616,411 | 5 Bed House10, Grosvenor Gardens, Wallington, SM6 9QJ10, Grosvenor Gardens, Wallington, SM6 9QJ
• Sold May 2014£565,000 | 4 Bed House12, Blenheim Gardens, Wallington, SM6 9PH12, Blenheim Gardens, Wallington, SM6 9PH
• Sold Feb 2014£499,950 | 4 Bed House61, Onslow Gardens, Wallington, SM6 9QH61, Onslow Gardens, Wallington, SM6 9QH
• Sold Jul 2010£460,000 | 4 Bed House59, Onslow Gardens, Wallington, SM6 9QH59, Onslow Gardens, Wallington, SM6 9QH

Of the 184 addresses on Onslow Gardens, Wallington, SM6, 20, Onslow Gardens, Wallington comes out as the 8th largest and the 10th most expensive in our analysis of the public data.

It is also £405k more expensive than the average property across the SM6 district.

• Bandon Hill Primary School

  600 m away
• Wood Field Primary School

  700 m away
• Foresters Primary School

  800 m away

• Wallington High School for Girls

  900 m away
• Wilson's School

  1.4 km away
• Wallington County Grammar School

  1.4 km away

• Wallington

  |

  500 m away
• Carshalton Beeches

  |

  1.6 km away
• Carshalton

  |

  1.9 km away

The flood risk here is rated Very Low, based on Environment Agency data.