According to data from HM Land Registry, 4, Connaught Road, Harpenden sits on a plot of 528 m².

We have plot size data on 20 out of 20 other houses in the postcode and 4, Connaught Road, Harpenden sits on the 10th largest plot.

4, Connaught Road, Harpenden has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 04 Jun 2026.

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

According to the Land Registry and our network of Estate Agents, there have been 115 sales of properties similar to 4, Connaught Road, Harpenden within a radius of 620 metres since 2017.

The most recent example is 10, Grant Gardens, Harpenden, AL5 4QD, a freehold house which sold for £1,530,000 on the 25th February 2026.

Read more about house prices in AL5.

• Sold Feb 2026£1,530,000 | 5 Bed House10, Grant Gardens, Harpenden, AL5 4QD10, Grant Gardens, Harpenden, AL5 4QD
• Sold Oct 2025£1,350,000 | 4 Bed House1, Devonshire Road, Harpenden, AL5 4TJ1, Devonshire Road, Harpenden, AL5 4TJ
• Sold Jun 2025£1,300,000 | 5 Bed House42, Cowper Road, Harpenden, AL5 5NG42, Cowper Road, Harpenden, AL5 5NG
• Sold Apr 2025£1,500,000 | 5 Bed House2A, Kipling Way, Harpenden, AL5 4XG2A, Kipling Way, Harpenden, AL5 4XG
• Sold Feb 2025£1,375,000 | 4 Bed House2, Cornwall Road, Harpenden, AL5 4TH2, Cornwall Road, Harpenden, AL5 4TH
• Sold Jan 2025£1,200,000 | 4 Bed House90, Station Road, Harpenden, AL5 4TY90, Station Road, Harpenden, AL5 4TY
• Sold Feb 2024£1,340,000 | 4 Bed House33, Station Road, Harpenden, AL5 4XD33, Station Road, Harpenden, AL5 4XD
• Sold Dec 2023£1,350,000 | 4 Bed House51, Dalkeith Road, Harpenden, AL5 5PP51, Dalkeith Road, Harpenden, AL5 5PP
• Sold Nov 2023£1,150,000 | 4 Bed House15, Cowper Road, Harpenden, AL5 5NF15, Cowper Road, Harpenden, AL5 5NF
• Sold Aug 2023£1,375,000 | 4 Bed House16, Stewart Road, Harpenden, AL5 4QB16, Stewart Road, Harpenden, AL5 4QB
• Sold Dec 2021£1,150,000 | 4 Bed House12, Stewart Road, Harpenden, AL5 4QB12, Stewart Road, Harpenden, AL5 4QB
• Sold Jun 2021£1,300,000 | 4 Bed House10, Elliswick Road, Harpenden, AL5 4TP10, Elliswick Road, Harpenden, AL5 4TP
• Sold Jun 2021£1,435,000 | 5 Bed House31, Cowper Road, Harpenden, AL5 5NF31, Cowper Road, Harpenden, AL5 5NF
• Sold Aug 2020£1,430,000 | 4 Bed House11, Dalkeith Road, Harpenden, AL5 5PP11, Dalkeith Road, Harpenden, AL5 5PP
• Sold Sep 2019£995,200 | 5 Bed House20, Overstone Road, Harpenden, AL5 5PJ20, Overstone Road, Harpenden, AL5 5PJ
• Sold Sep 2019£1,005,000 | 4 Bed House22, Overstone Road, Harpenden, AL5 5PJ22, Overstone Road, Harpenden, AL5 5PJ
• Sold Aug 2019£1,095,000 | 5 Bed House16, Overstone Road, Harpenden, AL5 5PJ16, Overstone Road, Harpenden, AL5 5PJ
• Sold Sep 2018£1,260,000 | 5 Bed House1A, Devonshire Road, Harpenden, AL5 4TJ1A, Devonshire Road, Harpenden, AL5 4TJ
• Sold Apr 2018£1,150,000 | 4 Bed House7, Connaught Road, Harpenden, AL5 4TW7, Connaught Road, Harpenden, AL5 4TW
• Sold Feb 2017£1,375,000 | 4 Bed House15, Connaught Road, Harpenden, AL5 4TW15, Connaught Road, Harpenden, AL5 4TW

Connaught Road, Harpenden, AL5 has a total of 20 addresses. According to our analysis of all the public data, 4, Connaught Road, Harpenden is the 7th largest and the 4th most expensive property on the street.

When compared to the postcode district it is £420k more expensive than the average property in AL5.

• Harpenden Academy

  400 m away
• St Nicholas CofE VA Primary School

  600 m away
• Manland Primary School

  600 m away

• St George's School

  600 m away
• Sir John Lawes School

  600 m away
• Katherine Warington School

  1.3 km away

• Harpenden

  |

  400 m away
• Luton Airport Parkway

  |

  6.9 km away
• St Albans City

  |

  7.7 km away

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