Our Data Sources
27, Sibley Avenue, Harpenden has a single entry in the Land Registry from June 2023 and a single entry in the EPC database dated March 2023.
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 27, Sibley Avenue, Harpenden is in very good condition we estimate a sale value of £806,496 and a rental value of £2,916 per month.
However, if the property needs a lot of cosmetic work we estimate a sale value of £714,325 and a rental value of £2,583 per month.
Energy Efficiency
27, Sibley Avenue, Harpenden has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 16 Mar 2023.
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, 27, Sibley Avenue, Harpenden was last sold on 15th June 2023 for £500,000 and was recorded as a freehold house.
The property has only had this single sale since 1995.
Since June 2023, the market for similar properties has dropped by 1.0%.
- Sold Jun 2023£500,000
Similar Properties Sold Nearby
According to the Land Registry and our network of Estate Agents, there have been 187 sales of properties similar to 27, Sibley Avenue, Harpenden within a radius of 720 metres over the last 2 years.
The most recent example is 13, Meadway, Harpenden, AL5 1JN, a freehold house which sold for £730,000 on the 18th November 2025.
Read more about house prices in AL5.
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
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Location Comparison
Sibley Avenue, Harpenden, AL5 has a total of 53 addresses. According to our analysis of all the public data, 27, Sibley Avenue, Harpenden is the 43rd largest and the 43rd most expensive property on the street.
When compared to the postcode district it is £198k less expensive than the average property in AL5.
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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.












