According to data from HM Land Registry, 20, Cowper Avenue, Sutton sits on a plot of 160 m².

We have plot size data on 29 out of 30 other houses in the postcode and 20, Cowper Avenue, Sutton sits on the 2nd largest plot.

20, Cowper Avenue, Sutton has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 27 May 2025.

The property is 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, 20, Cowper Avenue, Sutton was last sold on 16th September 2015 for £449,950 and was recorded as a freehold house.

The property has only had this single sale since 1995.

Since September 2015, the market for similar properties has risen by 41.6%.

• Sold Sep 2015£449,950

According to the Land Registry and our network of Estate Agents, there have been 304 sales of properties similar to 20, Cowper Avenue, Sutton within a radius of 450 metres since 2015.

The most recent example is 65, Benhill Road, Sutton, SM1 3RR, a freehold house which sold for £485,000 on the 27th February 2026.

Read more about house prices in SM1.

• Sold Feb 2026£485,000 | 3 Bed House65, Benhill Road, Sutton, SM1 3RR65, Benhill Road, Sutton, SM1 3RR
• Sold Oct 2025£500,000 | 3 Bed House6, Florian Avenue, Sutton, SM1 3QH6, Florian Avenue, Sutton, SM1 3QH
• Sold Oct 2025£550,000 | 3 Bed House30, Orchard Way, Sutton, SM1 3QQ30, Orchard Way, Sutton, SM1 3QQ
• Sold Jul 2025£530,000 | 3 Bed House65, Westmead Road, Sutton, SM1 4JG65, Westmead Road, Sutton, SM1 4JG
• Sold Mar 2025£480,000 | 3 Bed House35, Byron Avenue East, Sutton, SM1 3RB35, Byron Avenue East, Sutton, SM1 3RB
• Sold Jan 2025£480,000 | 3 Bed House23, Milton Avenue, Sutton, SM1 3QB23, Milton Avenue, Sutton, SM1 3QB
• Sold Dec 2024£465,000 | 3 Bed House38, Florian Avenue, Sutton, SM1 3QH38, Florian Avenue, Sutton, SM1 3QH
• Sold May 2024£460,000 | 3 Bed House91, Carshalton Grove, Sutton, SM1 4NB91, Carshalton Grove, Sutton, SM1 4NB
• Sold Mar 2024£460,000 | 3 Bed House7, Cowper Avenue, Sutton, SM1 3RD7, Cowper Avenue, Sutton, SM1 3RD
• Sold Nov 2023£460,274 | 3 Bed House25, Cowper Avenue, Sutton, SM1 3RD25, Cowper Avenue, Sutton, SM1 3RD
• Sold Jul 2023£631,000 | 3 Bed House14, Kingsley Avenue, Sutton, SM1 3RF14, Kingsley Avenue, Sutton, SM1 3RF
• Sold Jul 2023£470,000 | 3 Bed House11, Cowper Avenue, Sutton, SM1 3RD11, Cowper Avenue, Sutton, SM1 3RD
• Sold Apr 2023£446,000 | 3 Bed House1A, Florian Avenue, Sutton, SM1 3QH1A, Florian Avenue, Sutton, SM1 3QH
• Sold Mar 2023£485,000 | 3 Bed House30, Harold Road, Sutton, SM1 4HZ30, Harold Road, Sutton, SM1 4HZ
• Sold Jul 2022£601,000 | 3 Bed House8, Kingsley Avenue, Sutton, SM1 3RF8, Kingsley Avenue, Sutton, SM1 3RF
• Sold Apr 2022£455,000 | 3 Bed House27, Cowper Avenue, Sutton, SM1 3RD27, Cowper Avenue, Sutton, SM1 3RD
• Sold Mar 2022£470,000 | 3 Bed House49, Byron Avenue East, Sutton, SM1 3RB49, Byron Avenue East, Sutton, SM1 3RB
• Sold May 2021£455,000 | 3 Bed House1A, Byron Gardens, Sutton, SM1 3QG1A, Byron Gardens, Sutton, SM1 3QG
• Sold Sep 2015£449,950 | 3 Bed House22, Cowper Avenue, Sutton, SM1 3RD22, Cowper Avenue, Sutton, SM1 3RD
• Sold Jul 2015£449,950 | 3 Bed House24, Cowper Avenue, Sutton, SM1 3RD24, Cowper Avenue, Sutton, SM1 3RD

Cowper Avenue, Sutton, SM1 has a total of 30 addresses. According to our analysis of all the public data, 20, Cowper Avenue, Sutton is the 6th largest and the 7th most expensive property on the street.

When compared to the postcode district it is £70k more expensive than the average property in SM1.

• Manor Park Primary Academy

  700 m away
• St Mary's RC Infants School

  800 m away
• Rushy Meadow Primary Academy

  900 m away

• St Philomena's Catholic High School for Girls

  700 m away
• Carshalton High School for Girls

  700 m away
• Sutton Grammar School

  800 m away

• Carshalton

  |

  900 m away
• Sutton (London)

  |

  1.2 km away
• Carshalton Beeches

  |

  1.2 km away

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