Our Data Sources
21, Castle Street, Aylesbury has 31 entries in the Land Registry , most recently in May 2020 and a single entry in the EPC database dated December 2019.
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
The condition of a property plays an important role in determining its value, with the degree of impact varying by property type, size and location.
For 21, Castle Street, Aylesbury, we estimate a market value of £435,818 and a rental value of £2,088 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £386,010 and £1,849 per month respectively.
Plot Size
HM Land Registry records the plot of land for 21, Castle Street, Aylesbury as measuring 129 m2.
That makes it the 4th largest plot in the postcode, where 9 of the 16 other houses have recorded plot data.
Energy Efficiency
21, Castle Street, Aylesbury has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 19 Dec 2019.
The property is connected to mains gas and has fully double glazed windows. It is heated using Boiler and radiators, mains gas.
Sold Prices
The most recent sale of 21, Castle Street, Aylesbury completed on 29th May 2020 at £309,950 and was recorded by HM Land Registry as a freehold house.
Since 1995 the property has sold 3 times.
Values of comparable properties have risen by 29.6% over the period since May 2020.
- Sold May 2020£309,950
- Sold Jan 2010£261,000
- Sold Oct 2005£230,000
Similar Properties Sold Nearby
Over the past 2 years 24 properties similar to 21, Castle Street, Aylesbury have sold within a radius of 460 metres, per the Land Registry and our network of Estate Agents.
The latest, on the 12th September 2025, was 3, Ripon Street, Aylesbury, HP20 2JP, a freehold house which sold for £486,000.
Read more about house prices in HP20.
- Sold Sep 2025£486,000 | 4 Bed House3, Ripon Street, Aylesbury, HP20 2JP3, Ripon Street, Aylesbury, HP20 2JP
- Sold Apr 2025£275,000 | 4 Bed House25, Rickfords Hill, Aylesbury, HP20 2RT25, Rickfords Hill, Aylesbury, HP20 2RT
- Sold Sep 2023£295,000 | 4 Bed House8, Parsons Fee, Aylesbury, HP20 2QZ8, Parsons Fee, Aylesbury, HP20 2QZ
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Of the 56 addresses on Castle Street, Aylesbury, HP20, 21, Castle Street, Aylesbury comes out as the 2nd largest and the 3rd most expensive in our analysis of the public data.
It is also £114k more expensive than the average property across the HP20 district.
More reading links
Schools Nearby
- Bearbrook Combined School800 m away
- Oak Green School800 m away
- Elmhurst School900 m away
- Sir Henry Floyd Grammar School700 m away
- Aylesbury UTC800 m away
- Aylesbury Grammar School1.0 km away
More reading links
Public Transport Nearby
- Aylesbury|300 m away
- Aylesbury Vale Parkway|3.5 km away
- Stoke Mandeville|3.9 km away
Available Internet Speeds
Internet coverage here is poor, based on recent Ofcom data, and connectivity may be weak or unavailable.
According to recent data from Ofcom, Slow/none Broadband is available in the area.
Risk of Flooding
The flood risk here is rated Very Low, based on Environment Agency data.
