Our Data Sources
21, Observatory Close, Wallingford has no records in the Land Registry and a single entry in the EPC database dated December 2025.
We combine this information with public data of neighbouring properties to estimate the property attributes and values.
The local information is scored as 5 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, Observatory Close, Wallingford, we estimate a market value of £390,053 and a rental value of £1,646 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £345,476 and £1,458 per month respectively.
Plot Size
HM Land Registry records the plot of land for 21, Observatory Close, Wallingford as measuring 275 m2.
That makes it the 7th largest plot in the postcode, where 25 of the 32 other houses have recorded plot data.
Energy Efficiency
21, Observatory Close, Wallingford has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 15 Dec 2025.
The property is connected to mains gas and has fully double glazed windows. It is heated using warm air (mains gas).
Similar Properties Sold Nearby
Since 2017 104 properties similar to 21, Observatory Close, Wallingford have sold within a radius of 1.4 kilometres, per the Land Registry and our network of Estate Agents.
The latest, on the 10th April 2026, was 18, Offas Close, Wallingford, OX10 6NR, a freehold house which sold for £415,000.
Read more about house prices in OX10.
- Sold Apr 2026£415,000 | 3 Bed House18, Offas Close, Wallingford, OX10 6NR18, Offas Close, Wallingford, OX10 6NR
- Sold Aug 2025£410,000 | 3 Bed House1, Offas Close, Wallingford, OX10 6NR1, Offas Close, Wallingford, OX10 6NR
- Sold Aug 2025£390,000 | 3 Bed House20, Blacklands Road, Wallingford, OX10 6NW20, Blacklands Road, Wallingford, OX10 6NW
- Sold Jul 2025£390,000 | 3 Bed House13, Blacklands Road, Wallingford, OX10 6NW13, Blacklands Road, Wallingford, OX10 6NW
- Sold Jul 2025£353,000 | 3 Bed House23, Observatory Close, Wallingford, OX10 6NU23, Observatory Close, Wallingford, OX10 6NU
Nearby is defined as the radius comprising the nearest 2,000 addresses.
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Explore Nearby Properties
The surrounding properties have an average estimated value of £447,309, ranging from £351,762 to £696,979.
- 20 Observatory Close
3 Bed House | 5 m | Est. Value: £366,568
- 17 Observatory Close
4 Bed House | 26 m | Est. Value: £549,457
- 5 Old Barn Close
3 Bed House | 30 m | Est. Value: £464,075
- 22 Observatory Close
3 Bed House | 37 m | Est. Value: £351,762
- 23 Observatory Close
3 Bed House | 41 m | Est. Value: £371,479
Location Comparison
Of the 32 addresses on Observatory Close, Benson, Wallingford, OX10, 21, Observatory Close, Wallingford comes out as the 16th largest and the 18th most expensive in our analysis of the public data.
It is also £149k less expensive than the average property across the OX10 district.
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Schools Nearby
- Benson Church of England Primary School600 m away
- RAF Benson Community Primary School1.8 km away
- Ewelme CofE Primary School2.3 km away
- Wallingford School2.4 km away
- Icknield Community College7.3 km away
- St Birinus School9.8 km away
More reading links
Public Transport Nearby
- Cholsey|6.8 km away
- Didcot Parkway|9.7 km away
- Appleford|9.8 km away
Available Internet Speeds
Broadband here reaches superfast speeds, based on recent Ofcom data.
According to recent data from Ofcom, Superfast Broadband available in this area.
Risk of Flooding
The flood risk here is rated Very Low, based on Environment Agency data.
