According to data from HM Land Registry, 17, Townsend Road, Harpenden sits on a plot of 829 m².

We have plot size data on 22 out of 24 other houses in the postcode and 17, Townsend Road, Harpenden sits on the 8th largest plot.

17, Townsend Road, Harpenden has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 01 Jul 2014.

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

According to HM Land Registry, 17, Townsend Road, Harpenden was last sold on 12th March 2015 for £1,040,000 and was recorded as a freehold house.

The property has only had this single sale since 1995.

Since March 2015, the market for similar properties has risen by 15.3%.

• Sold Mar 2015£1,040,000

According to the Land Registry and our network of Estate Agents, there have been 113 sales of properties similar to 17, Townsend Road, Harpenden within a radius of 670 metres since 2010.

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 Nov 2025£1,515,000 | 5 Bed House3, Ambrose Lane, Harpenden, AL5 4AU3, Ambrose Lane, Harpenden, AL5 4AU
• Sold Sep 2025£1,610,000 | 4 Bed House4, Townsend Lane, Harpenden, AL5 2QE4, Townsend Lane, Harpenden, AL5 2QE
• Sold Jul 2025£1,375,000 | 4 Bed House16, Hitherfield Lane, Harpenden, AL5 4JD16, Hitherfield Lane, Harpenden, AL5 4JD
• Sold Jul 2025£1,495,000 | 4 Bed House37, Hillside Road, Harpenden, AL5 4BS37, Hillside Road, Harpenden, AL5 4BS
• Sold Aug 2024£1,225,000 | 4 Bed House26, Tennyson Road, Harpenden, AL5 4BB26, Tennyson Road, Harpenden, AL5 4BB
• Sold Jan 2024£1,500,000 | 4 Bed House11B, Douglas Road, Harpenden, AL5 2EN11B, Douglas Road, Harpenden, AL5 2EN
• Sold Oct 2023£1,160,000 | 4 Bed House33, Ambrose Lane, Harpenden, AL5 4DG33, Ambrose Lane, Harpenden, AL5 4DG
• Sold Mar 2023£1,507,500 | 4 Bed House21, Moreton End Lane, Harpenden, AL5 2EY21, Moreton End Lane, Harpenden, AL5 2EY
• Sold Dec 2022£1,560,100 | 4 Bed House14, Ambrose Lane, Harpenden, AL5 4AX14, Ambrose Lane, Harpenden, AL5 4AX
• Sold Dec 2022£1,720,000 | 5 Bed House5, Ambrose Lane, Harpenden, AL5 4AU5, Ambrose Lane, Harpenden, AL5 4AU
• Sold Nov 2021£1,340,000 | 4 Bed House5, Grant Gardens, Harpenden, AL5 4QD5, Grant Gardens, Harpenden, AL5 4QD
• Sold Jun 2021£1,150,000 | 5 Bed House5, Lambourn Gardens, Harpenden, AL5 4DQ5, Lambourn Gardens, Harpenden, AL5 4DQ
• Sold May 2021£1,144,000 | 4 Bed House31, Hollybush Lane, Harpenden, AL5 4AS31, Hollybush Lane, Harpenden, AL5 4AS
• Sold May 2021£1,100,000 | 4 Bed House22, Wordsworth Road, Harpenden, AL5 4AF22, Wordsworth Road, Harpenden, AL5 4AF
• Sold Oct 2020£1,162,000 | 4 Bed House28, Tennyson Road, Harpenden, AL5 4BB28, Tennyson Road, Harpenden, AL5 4BB
• Sold Nov 2019£1,350,000 | 4 Bed House11, Townsend Road, Harpenden, AL5 4BQ11, Townsend Road, Harpenden, AL5 4BQ
• Sold Mar 2014£908,000 | 5 Bed House8, Wordsworth Road, Harpenden, AL5 4AF8, Wordsworth Road, Harpenden, AL5 4AF
• Sold Oct 2012£980,000 | 4 Bed House11, Douglas Road, Harpenden, AL5 2EN11, Douglas Road, Harpenden, AL5 2EN
• Sold Dec 2010£674,000 | 4 Bed House19, Townsend Road, Harpenden, AL5 4BQ19, Townsend Road, Harpenden, AL5 4BQ

Townsend Road, Harpenden, AL5 has a total of 46 addresses. According to our analysis of all the public data, 17, Townsend Road, Harpenden is the 24th largest and the 17th most expensive property on the street.

When compared to the postcode district it is £453k more expensive than the average property in AL5.

• St Nicholas CofE VA Primary School

  500 m away
• Harpenden Academy

  700 m away
• Manland Primary School

  800 m away

• St George's School

  400 m away
• Sir John Lawes School

  900 m away
• Roundwood Park School

  1.0 km away

• Harpenden

  |

  900 m away
• Luton Airport Parkway

  |

  6.3 km away
• Luton

  |

  7.8 km away

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