Our Data Sources
59, Sibley Avenue, Harpenden has a single entry in the Land Registry from December 2025 and a single entry in the EPC database dated June 2024.
We combine this information with that of neighbouring properties to estimate the property attributes and values.
The local information is scored as 4 out of 5 and is considered of high accuracy.
Price Range & Condition
Decorative condition can have a big effect on a property's value and this effect varies depending on the type, size and location of the property.
If 59, Sibley Avenue, Harpenden is in very good condition we estimate a sale value of £945,745 and a rental value of £3,367 per month.
However, if the property needs a lot of cosmetic work we estimate a sale value of £837,660 and a rental value of £2,982 per month.
Plot Size
According to data from HM Land Registry, 59, Sibley Avenue, Harpenden sits on a plot of 568 m2.
We have plot size data on 27 out of 36 other houses in the postcode and 59, Sibley Avenue, Harpenden sits on the 11th largest plot.
Energy Efficiency
59, Sibley Avenue, Harpenden has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 17 Jun 2024.
The property is connected to mains gas and has fully double glazed windows. It is heated using Boiler and radiators, mains gas.
Sold Prices
According to HM Land Registry, 59, Sibley Avenue, Harpenden was last sold on 4th December 2025 for £1,100,000 and was recorded as a freehold house.
The property has only had this single sale since 1995.
Since December 2025, the market for similar properties has risen by 7.1%.
- Sold Dec 2025£1,100,000
Similar Properties Sold Nearby
According to the Land Registry and our network of Estate Agents, there have been 195 sales of properties similar to 59, Sibley Avenue, Harpenden within a radius of 810 metres over the last 2 years.
The most recent example is 48, Meadway, Harpenden, AL5 1JL, a freehold house which sold for £875,000 on the 28th November 2025.
Read more about house prices in AL5.
- Sold Nov 2025£875,000 | 4 Bed House48, Meadway, Harpenden, AL5 1JL48, Meadway, Harpenden, AL5 1JL
- Sold Jul 2023£845,000 | 4 Bed House43, Sibley Avenue, Harpenden, AL5 1HF43, Sibley Avenue, Harpenden, AL5 1HF
- Sold Nov 2021£807,500 | 4 Bed House52, Meadway, Harpenden, AL5 1JL52, Meadway, Harpenden, AL5 1JL
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Sibley Avenue, Harpenden, AL5 has a total of 53 addresses. According to our analysis of all the public data, 59, Sibley Avenue, Harpenden is the 27th largest and the 24th most expensive property on the street.
When compared to the postcode district it is £66k less expensive than the average property in AL5.
More reading links
Schools Nearby
- The Grove Infant and Nursery School300 m away
- The Grove Junior School400 m away
- High Beeches Primary School800 m away
- Katherine Warington School1.8 km away
- Sir John Lawes School2.0 km away
- St George's School2.3 km away
More reading links
Public Transport Nearby
- Harpenden|1.6 km away
- St Albans City|6.3 km away
- St Albans Abbey|6.9 km away
Available Internet Speeds
According to recent data from Ofcom, Ultrafast Broadband is available in this area.
According to recent data from Ofcom, Ultrafast Broadband is available in the area.
Risk of Flooding
According to data from the Environment Agency, the flood risk in this area is considered to be Very Low.












