According to data from HM Land Registry, 21, Blackwell Avenue, Guildford sits on a plot of 433 m².

We have plot size data on 30 out of 31 other houses in the postcode and 21, Blackwell Avenue, Guildford sits on the 4th largest plot.

21, Blackwell Avenue, Guildford has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 20 Jul 2021.

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, 21, Blackwell Avenue, Guildford was last sold on 16th September 2011 for £240,000 and was recorded as a freehold house.

The property has only had this single sale since 1995.

Since September 2011, the market for similar properties has risen by 87.6%.

• Sold Sep 2011£240,000

According to the Land Registry and our network of Estate Agents, there have been 115 sales of properties similar to 21, Blackwell Avenue, Guildford within a radius of 820 metres since 2014.

The most recent example is 7A, Hunts Close, Guildford, GU2 8LS, a freehold house which sold for £700,000 on the 23rd April 2026.

Read more about house prices in GU2.

• Sold Apr 2026£700,000 | 3 Bed House7A, Hunts Close, Guildford, GU2 8LS7A, Hunts Close, Guildford, GU2 8LS
• Sold Dec 2025£550,000 | 3 Bed House89A, Applegarth Avenue, Guildford, GU2 8LX89A, Applegarth Avenue, Guildford, GU2 8LX
• Sold Nov 2025£520,000 | 4 Bed House48, Applegarth Avenue, Guildford, GU2 8LY48, Applegarth Avenue, Guildford, GU2 8LY
• Sold Mar 2025£457,000 | 3 Bed House14, Hunts Close, Guildford, GU2 8LS14, Hunts Close, Guildford, GU2 8LS
• Sold Mar 2025£472,500 | 3 Bed House26A, Rickyard, Guildford, GU2 8JP26A, Rickyard, Guildford, GU2 8JP
• Sold Oct 2024£450,000 | 3 Bed House5, Hunts Close, Guildford, GU2 8LS5, Hunts Close, Guildford, GU2 8LS
• Sold Oct 2024£400,000 | 3 Bed House12, Hunts Close, Guildford, GU2 8LS12, Hunts Close, Guildford, GU2 8LS
• Sold Oct 2024£425,000 | 3 Bed House3, Applegarth Avenue, Guildford, GU2 8LZ3, Applegarth Avenue, Guildford, GU2 8LZ
• Sold Jul 2024£450,000 | 3 Bed House14, Blackwell Avenue, Guildford, GU2 8LU14, Blackwell Avenue, Guildford, GU2 8LU
• Sold Apr 2024£447,000 | 3 Bed House101, Applegarth Avenue, Guildford, GU2 8LT101, Applegarth Avenue, Guildford, GU2 8LT
• Sold Nov 2023£475,000 | 3 Bed House230, Cabell Road, Guildford, GU2 8JW230, Cabell Road, Guildford, GU2 8JW
• Sold Sep 2022£510,000 | 3 Bed House25, Blackwell Avenue, Guildford, GU2 8LU25, Blackwell Avenue, Guildford, GU2 8LU
• Sold Apr 2022£480,000 | 3 Bed House40, Applegarth Avenue, Guildford, GU2 8LY40, Applegarth Avenue, Guildford, GU2 8LY
• Sold Apr 2022£483,000 | 3 Bed House65, Applegarth Avenue, Guildford, GU2 8LX65, Applegarth Avenue, Guildford, GU2 8LX
• Sold Aug 2021£425,000 | 3 Bed House23, Blackwell Avenue, Guildford, GU2 8LU23, Blackwell Avenue, Guildford, GU2 8LU
• Sold Feb 2021£380,000 | 3 Bed House11, Blackwell Avenue, Guildford, GU2 8LU11, Blackwell Avenue, Guildford, GU2 8LU
• Sold Nov 2019£415,000 | 3 Bed House76, Applegarth Avenue, Guildford, GU2 8LT76, Applegarth Avenue, Guildford, GU2 8LT
• Sold Apr 2019£425,000 | 3 Bed House25, Applegarth Avenue, Guildford, GU2 8LZ25, Applegarth Avenue, Guildford, GU2 8LZ
• Sold Sep 2017£434,950 | 3 Bed House81, Applegarth Avenue, Guildford, GU2 8LX81, Applegarth Avenue, Guildford, GU2 8LX
• Sold Jul 2014£250,000 | 3 Bed House76, Homestall, Guildford, GU2 8JS76, Homestall, Guildford, GU2 8JS

Blackwell Avenue, Guildford, GU2 has a total of 31 addresses. According to our analysis of all the public data, 21, Blackwell Avenue, Guildford is the 11th largest and the 11th most expensive property on the street.

When compared to the postcode district it is £10k less expensive than the average property in GU2.

• Guildford Grove Primary School

  500 m away
• Wood Street Infant School and Nursery

  800 m away
• St Joseph's Catholic Primary School

  1.2 km away

• Kings College Guildford

  600 m away
• Guildford County School

  2.4 km away
• Christ's College, Guildford

  2.7 km away

• Guildford

  |

  2.6 km away
• London Road (Guildford)

  |

  3.6 km away
• Wanborough

  |

  3.6 km away

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