According to data from HM Land Registry, 138, Onslow Gardens, Wallington sits on a plot of 421 m².

We have plot size data on 3 out of 3 other houses in the postcode and 138, Onslow Gardens, Wallington sits on the 3rd largest plot.

138, Onslow Gardens, Wallington has an Energy Performance Rating (EPC) of E. This is based on the most recent assessment, dated 15 Apr 2014.

The property is not connected to mains gas and has fully double glazed windows. It is heated using a boiler and radiators (mains gas).

According to HM Land Registry, 138, Onslow Gardens, Wallington was last sold on 9th August 2006 for £485,000 and was recorded as a freehold house.

The property has had 2 sales since 1995.

• Sold Aug 2006£485,000
• Sold Aug 2005£300,000

According to the Land Registry and our network of Estate Agents, there have been 113 sales of properties similar to 138, Onslow Gardens, Wallington within a radius of 530 metres since 2019.

The most recent example is 30A, Buckingham Way, Wallington, SM6 9LT, a freehold house which sold for £960,000 on the 23rd January 2026.

Read more about house prices in SM6.

• Sold Jan 2026£960,000 | 5 Bed House30A, Buckingham Way, Wallington, SM6 9LT30A, Buckingham Way, Wallington, SM6 9LT
• Sold Oct 2025£745,000 | 5 Bed House81, Onslow Gardens, Wallington, SM6 9PX81, Onslow Gardens, Wallington, SM6 9PX
• Sold Aug 2025£950,000 | 5 Bed House25, Woodcote Avenue, Wallington, SM6 0QU25, Woodcote Avenue, Wallington, SM6 0QU
• Sold Jul 2025£902,000 | 5 Bed House40, The Newlands, Wallington, SM6 9JU40, The Newlands, Wallington, SM6 9JU
• Sold Oct 2024£830,000 | 5 Bed House23, Buckingham Way, Wallington, SM6 9LU23, Buckingham Way, Wallington, SM6 9LU
• Sold Aug 2024£770,000 | 4 Bed House124, Onslow Gardens, Wallington, SM6 9QG124, Onslow Gardens, Wallington, SM6 9QG
• Sold Jul 2024£655,000 | 5 Bed House3, Hillside Gardens, Wallington, SM6 9NX3, Hillside Gardens, Wallington, SM6 9NX
• Sold Apr 2024£750,000 | 4 Bed House150, Sandy Lane South, Wallington, SM6 9NR150, Sandy Lane South, Wallington, SM6 9NR
• Sold Aug 2023£906,500 | 5 Bed House137, Sandy Lane South, Wallington, SM6 9NW137, Sandy Lane South, Wallington, SM6 9NW
• Sold Mar 2023£815,000 | 5 Bed House109, Onslow Gardens, Wallington, SM6 9PX109, Onslow Gardens, Wallington, SM6 9PX
• Sold Mar 2023£890,000 | 5 Bed House5, Woodcote Avenue, Wallington, SM6 0QR5, Woodcote Avenue, Wallington, SM6 0QR
• Sold Oct 2022£1,010,000 | 5 Bed House37, Brambledown Road, Wallington, SM6 0TF37, Brambledown Road, Wallington, SM6 0TF
• Sold Jul 2022£900,000 | 5 Bed House12, Buckingham Way, Wallington, SM6 9LT12, Buckingham Way, Wallington, SM6 9LT
• Sold Jan 2022£875,000 | 5 Bed House53, Onslow Gardens, Wallington, SM6 9QH53, Onslow Gardens, Wallington, SM6 9QH
• Sold Dec 2021£815,000 | 4 Bed House123, Sandy Lane South, Wallington, SM6 9NW123, Sandy Lane South, Wallington, SM6 9NW
• Sold Jun 2021£627,500 | 4 Bed House79, Marchmont Road, Wallington, SM6 9NT79, Marchmont Road, Wallington, SM6 9NT
• Sold Mar 2021£560,000 | 5 Bed House59, Marchmont Road, Wallington, SM6 9NT59, Marchmont Road, Wallington, SM6 9NT
• Sold Jun 2020£795,000 | 5 Bed House28, Brambledown Road, Wallington, SM6 0TF28, Brambledown Road, Wallington, SM6 0TF
• Sold Feb 2019£732,500 | 5 Bed House26, Hillside Gardens, Wallington, SM6 9NY26, Hillside Gardens, Wallington, SM6 9NY
• Sold Jan 2019£627,000 | 5 Bed House14, Marchmont Road, Wallington, SM6 9NU14, Marchmont Road, Wallington, SM6 9NU

Onslow Gardens, Wallington, SM6 has a total of 184 addresses. According to our analysis of all the public data, 138, Onslow Gardens, Wallington is the 9th largest and the 8th most expensive property on the street.

When compared to the postcode district it is £425k more expensive than the average property in SM6.

• Wood Field Primary School

  900 m away
• Foresters Primary School

  900 m away
• Bandon Hill Primary School

  1.0 km away

• Wallington High School for Girls

  400 m away
• The John Fisher School

  1.1 km away
• Oaks Park High School

  1.5 km away

• Wallington

  |

  1.1 km away
• Carshalton Beeches

  |

  1.7 km away
• Carshalton

  |

  2.4 km away

According to data from the Environment Agency, the flood risk in this area is considered to be Very Low.