Our Data Sources
23, Observatory Close, Wallingford has a single entry in the Land Registry from July 2025 and a single entry in the EPC database dated February 2025.
We combine this information with that 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
In very good condition, we estimate 23, Observatory Close, Wallingford would be worth £390,053, with a potential rental value of £1,646 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £345,476, with a rental value of £1,458 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Plot Size
23, Observatory Close, Wallingford occupies a 174 m2 plot as recorded by HM Land Registry.
Of the 32 other houses in this postcode, 25 have recorded plot sizes, and this one ranks as the 17th largest.
Energy Efficiency
23, Observatory Close, Wallingford has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 13 Feb 2025.
The property is connected to mains gas and has fully double glazed windows. It is heated using a boiler and radiators (mains gas).
Sold Prices
23, Observatory Close, Wallingford last changed hands on 17th July 2025, selling for £353,000. The transaction was logged as a freehold house by HM Land Registry.
That is its only recorded sale since 1995.
The market for similar properties has risen by 4.3% since July 2025.
- Sold Jul 2025£353,000
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 103 sales of comparable properties within 1.4 kilometres of 23, Observatory Close, Wallingford since 2017.
Most recently, 18, Offas Close, Wallingford, OX10 6NR, a freehold house, sold at £415,000 on the 10th April 2026.
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 Jun 2025£410,000 | 3 Bed House40, Westfield Road, Wallingford, OX10 6NJ40, Westfield Road, Wallingford, OX10 6NJ
Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Explore Nearby Properties
The surrounding properties have an average estimated value of £409,522, ranging from £351,762 to £549,457.
- 24 Observatory Close
3 Bed House | 5 m | Est. Value: £415,727
- 22 Observatory Close
3 Bed House | 6 m | Est. Value: £351,762
- 25 Observatory Close
3 Bed House | 10 m | Est. Value: £359,989
- 27 Observatory Close
3 Bed House | 22 m | Est. Value: £369,030
- 28 Observatory Close
3 Bed House | 27 m | Est. Value: £366,568
Location Comparison
Our analysis of the public data ranks 23, Observatory Close, Wallingford as the 15th largest and the 17th most expensive of the 32 addresses on Observatory Close, Benson, Wallingford, OX10.
Against the OX10 postcode district average, it is £149k less expensive than the typical property.
More reading links
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
Ofcom's latest figures show superfast broadband available in this area.
According to recent data from Ofcom, Superfast Broadband available in this area.
Risk of Flooding
Environment Agency data suggests this area has a Very Low risk of flooding.
