Our Data Sources
21, Trevallen Avenue, Neath has 41 entries in the Land Registry, most recently in September 2021 and a single entry in the EPC database dated March 2020.
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.
1Sales dated prior to 2007 are shown, but are not used in our calculations.
Price Range & Condition
In very good condition, we estimate 21, Trevallen Avenue, Neath would be worth £198,517, with a potential rental value of £1,025 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £175,829, with a rental value of £908 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Plot Size
21, Trevallen Avenue, Neath occupies a 233 m2 plot as recorded by HM Land Registry.
Of the 16 other houses in this postcode, 14 have recorded plot sizes, and this one ranks as the 11th largest.
Energy Efficiency
21, Trevallen Avenue, Neath has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 03 Mar 2020.
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
21, Trevallen Avenue, Neath last changed hands on 17th September 2021, selling for £160,000. The transaction was logged as a freehold house by HM Land Registry.
In total it has sold 4 times since 1995.
The market for similar properties has risen by 0.9% since September 2021.
- Sold Sep 2021£160,000
- Sold Mar 2020£125,000
- Sold Apr 2010£103,500
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 118 sales of comparable properties within 610 metres of 21, Trevallen Avenue, Neath since 2018.
Most recently, 25, Trevallen Avenue, Neath, SA11 3UU, a freehold house, sold at £190,000 on the 29th May 2026.
Read more about house prices in SA11.
- Sold May 2026£190,000 | 3 Bed House25, Trevallen Avenue, Neath, SA11 3UU25, Trevallen Avenue, Neath, SA11 3UU
- Sold Nov 2025£170,000 | 3 Bed House9, Heol Isaf, Neath, SA11 3SR9, Heol Isaf, Neath, SA11 3SR
- Sold Nov 2025£165,000 | 3 Bed House24, Glannant Way, Neath, SA11 3YA24, Glannant Way, Neath, SA11 3YA
- Sold Sep 2025£100,000 | 3 Bed House3, Castle Drive, Neath, SA11 3UY3, Castle Drive, Neath, SA11 3UY
- Sold Jul 2025£182,000 | 3 Bed House8, Y Berllan, Neath, SA11 3YH8, Y Berllan, Neath, SA11 3YH
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 £198,174, ranging from £159,316 to £285,716.
- 23 Trevallen Avenue
2 Bed House | 6 m | Est. Value: £178,050
- 19 Trevallen Avenue
2 Bed House | 10 m | Est. Value: £159,481
- 25 Trevallen Avenue
3 Bed House | 16 m | Est. Value: £183,202
- 15 Trevallen Avenue
3 Bed House | 26 m | Est. Value: £198,925
- 13 Trevallen Avenue
2 Bed House | 32 m | Est. Value: £159,316
Location Comparison
Our analysis of the public data ranks 21, Trevallen Avenue, Neath as the 58th largest and the 37th most expensive of the 70 addresses on Trevallen Avenue, Neath, SA11.
Against the SA11 postcode district average, it is £23k more expensive than the typical property.
More reading links
Schools Nearby
Public Transport Nearby
- Neath|1.8 km away
- Briton Ferry|2.8 km away
- Skewen|4.2 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.





