House prices on Castle Street
Median value — July 2026
£180,298
Modelled from 22 properties Stede tracks in Castle Street
Market snapshot
£180,298
Median value
£180,360
Average value
1
Sales in the last 12 months
+4%
Change over the past year
Value over time
- Modelled value
Modelled month by month from the UK House Price Index, averaged across every property type Stede tracks here.
View as a table
| Year | Modelled value |
|---|---|
| 2000 | £70,963 |
| 2001 | £77,965 |
| 2002 | £98,018 |
| 2003 | £121,540 |
| 2004 | £149,090 |
| 2005 | £158,622 |
| 2006 | £168,850 |
| 2007 | £187,795 |
| 2008 | £157,922 |
| 2009 | £166,874 |
| 2010 | £170,871 |
| 2011 | £166,164 |
| 2012 | £163,450 |
| 2013 | £166,403 |
| 2014 | £168,193 |
| 2015 | £170,970 |
| 2016 | £180,552 |
| 2017 | £188,373 |
| 2018 | £198,053 |
| 2019 | £198,382 |
| 2020 | £217,092 |
| 2021 | £237,445 |
| 2022 | £263,707 |
| 2023 | £249,717 |
| 2024 | £251,978 |
| 2025 | £255,903 |
| 2026 | £258,022 |
There aren't enough recorded sales on Castle Street alone to model a trend for it, so this line shows Builth Wells instead.
Property types
- Semi-detached house45%£180,298
- Mid-terrace house41%£185,333
- Flat / Maisonette9%£71,941
- Property5%£286,856
Recent sales
- 16 Castle Street, Builth Wells, Powys, LD2 3BN£210,000 · 2026£210,000
- 18 Castle Street, Builth Wells, Powys, LD2 3BN£140,000 · 2025£147,000
- 10 Castle Street, Builth Wells, Powys, LD2 3BN£220,000 · 2025£227,000
- 8 Castle Street, Builth Wells, Powys, LD2 3BN£137,500 · 2025£142,000
- 27 Castle Street, Builth Wells, Powys, LD2 3BN£170,000 · 2024£176,000
- 13 Castle Street, Builth Wells, Powys, LD2 3BN£80,000 · 2023£76,000
- 24 Castle Street, Builth Wells, Powys, LD2 3BN£178,000 · 2023£182,000
- 33 Castle Street, Builth Wells, Powys, LD2 3BN£300,000 · 2022£287,000
Addresses in Castle Street
- 10 Castle Street, Builth Wells, Powys, LD2 3BN£220,000 · 2025£227,000
- 12 Castle Street, Builth Wells, Powys, LD2 3BN£140,000 · 2017£204,000
- 13 Castle Street, Builth Wells, Powys, LD2 3BN£80,000 · 2023£76,000
- 13 Garden Flat, Castle Street, Builth Wells, Powys, LD2 3BN£58,500 · 2020£68,000
- 14 Castle Street, Builth Wells, Powys, LD2 3BN£55,000 · 1997£257,000
- 16 Castle Street, Builth Wells, Powys, LD2 3BN£210,000 · 2026£210,000
- 18 Castle Street, Builth Wells, Powys, LD2 3BN£140,000 · 2025£147,000
- 20 Castle Street, Builth Wells, Powys, LD2 3BN£143,000 · 2021£169,000
- 21 Castle Street, Builth Wells, Powys, LD2 3BN£53,000 · 2002£156,000
- 22 Castle Street, Builth Wells, Powys, LD2 3BN£145,000 · 2022£152,000
- 23 Castle Street, Builth Wells, Powys, LD2 3BN£115,000 · 2012£185,000
- 24 Castle Street, Builth Wells, Powys, LD2 3BN£178,000 · 2023£182,000
- 25 Castle Street, Builth Wells, Powys, LD2 3BN£145,000 · 2017£214,000
- 26 Castle Street, Builth Wells, Powys, LD2 3BN£170,000 · 2022£185,000
- 26A, Castle Street, Builth Wells, Powys, LD2 3BN£167,000 · 2022£179,000
- 27 Castle Street, Builth Wells, Powys, LD2 3BN£170,000 · 2024£176,000
- 28 Castle Street, Builth Wells, Powys, LD2 3BN£215,000 · 2021£237,000
- 32 Castle Street, Builth Wells, Powys, LD2 3BN£195,000 · 2021£243,000
- 33 Castle Street, Builth Wells, Powys, LD2 3BN£300,000 · 2022£287,000
- 4 Castle Street, Builth Wells, Powys, LD2 3BN£70,000 · 2012£114,000
- 6 Castle Street, Builth Wells, Powys, LD2 3BN£115,000 · 2018£159,000
- 8 Castle Street, Builth Wells, Powys, LD2 3BN£137,500 · 2025£142,000
About this area
Castle Street, in Builth Wells, is a street. Stede can model 22 properties there, from HM Land Registry Price Paid Data and the UK House Price Index.
As of July 2026, Castle Street has a median estimated value of £180,298 and an average of £180,360.
Modelled values in Castle Street are +4% over the past year and +17% over five years.
The market here is mostly semi-detached houses, which make up 45% of the properties Stede tracks in Castle Street.
1 sale was recorded in Castle Street over the past 12 months.
Common questions
What is the average house price in Castle Street?
As of July 2026, the average estimated value is £180,360 and the median is £180,298 across 22 properties Stede tracks in Castle Street. This is not a formal market valuation.
Are house prices in Castle Street going up or down?
Modelled values in Castle Street are +4% over the past year and +17% over five years, based on the UK House Price Index.
What types of property are in Castle Street?
45% of the properties Stede tracks in Castle Street are semi-detached houses. mid-terrace houses are next most common, at 41%.
How many properties are in Castle Street?
Stede can model 22 properties in Castle Street, with 1 recorded sale in the past 12 months.
How does Stede calculate house prices for Castle Street?
These figures are modelled from HM Land Registry Price Paid Data and the UK House Price Index — the same sources used for every individual property valuation on Stede. Full detail is on the methodology page.
How we calculate this
These figures are modelled from HM Land Registry Price Paid Data and the UK House Price Index — the same sources behind every individual property valuation on Stede.
Read the full methodology and data sources →