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Bricks&Logic is a trading name of Urban Markets Ltd
Company No. 11113204
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VAT No. GB 287 0845 68
Registered Address: 2 Leman St, London E1 8FA
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1 William StreetHouse Prices / Wales, Cardiff, William Street, CF11 9JX
Last updated Jun 2026
Key Building Insights
1 William Street is a residential building situated on William Street, Cardiff, CF11 with 2 addresses.
It ranks as the 19th largest and 733rd most expensive of the 1,082 buildings in the CF11 area. The dominant property type is a period flat built between 1800 and 1911.
The building contains a total of 2 properties: 2 flats.
2
Properties
- Flats
Key Building Insights
1 William Street is a residential building situated on William Street, Cardiff, CF11 with 2 addresses.
It ranks as the 19th largest and 733rd most expensive of the 1,082 buildings in the CF11 area. The dominant property type is a period flat built between 1800 and 1911.
The building contains a total of 2 properties: 2 flats.
2
Properties
- Flats
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House Pricesin 1 William Street
Sale prices range from £148,972 for 1 bedroom leasehold flats with a garden (419 ft2) to £191,521 for 2 bedroom leasehold flats (720 ft2) .
Monthly rental prices range from £959 pcm for 1 bed flats to £1,197 pcm for 2 bed flats.
The gross rental yield is between 7.5% and 7.7%.
The average value per square foot is £310.
Average Sale Value
£170,247
Average Rental Value
£1,078 pcm
Average Rental Yield
7.6% /year
Average Value Per Sqft
£310 /ft2
Sales Market Trendsin 1 William Street
The last sale in 1 William Street sold for £124,950 on 13th May 2011. Since then prices are up an average of 39.9%.
The current average value in the building is £170,247.
The 1 William Street Sales Market has increased by 22.2% over the last 10 years.
| Period | Year on Year | Average Price |
|---|---|---|
| May 2026 | -1.3% | £170,247 |
| May 2025 | 0.8% | £172,498 |
| May 2024 | -0.2% | £171,098 |
| May 2023 | 1.1% | £171,433 |
| May 2022 | 7% | £169,650 |
| May 2021 | 4.9% | £158,601 |
| May 2020 | 2% | £151,144 |
| May 2019 | 1.4% | £148,139 |
| May 2018 | 4.2% | £146,031 |
| May 2017 | 0.6% | £140,170 |
| May 2016 | 4.6% | £139,331 |
| May 2015 | 4.4% | £133,171 |
| May 2014 | 5.4% | £127,568 |
| May 2013 | 1.4% | £121,084 |
| May 2012 | -1.9% | £119,447 |
| May 2011 | -0.8% | £121,730 |
| May 2010 | 4.1% | £122,709 |
| May 2009 | -12.7% | £117,852 |
| May 2008 | -2.7% | £135,061 |
| May 2007 | 0% | £138,750 |
Rental Market Trendsin 1 William Street
The current average rental value in the building is £1,078.
The 1 William Street Rental Market has increased by 46.1% over the last 10 years.
| Period | Year on Year | Average Price |
|---|---|---|
| May 2026 | 2.1% | £1,078pcm |
| May 2025 | 2.7% | £1,056pcm |
| May 2024 | 7.2% | £1,028pcm |
| May 2023 | 11.3% | £959pcm |
| May 2022 | 9.5% | £861pcm |
| May 2021 | 1.7% | £787pcm |
| May 2020 | 3% | £774pcm |
| May 2019 | 0.1% | £751pcm |
| May 2018 | 1.5% | £750pcm |
| May 2017 | 0% | £739pcm |
| May 2016 | 4.7% | £738pcm |
| May 2015 | 2.6% | £705pcm |
| May 2014 | 3.3% | £687pcm |
| May 2013 | 1.4% | £665pcm |
| May 2012 | 0.4% | £656pcm |
| May 2011 | 1.9% | £653pcm |
| May 2010 | 1.1% | £641pcm |
| May 2009 | -3.2% | £634pcm |
| May 2008 | 1.5% | £656pcm |
| May 2007 | 0% | £646pcm |
Explore Propertiesin 1, William Street, Cardiff, CF11 9JX
Sales Historyin 1, William Street, Cardiff, CF11 9JX
The last sale was on 13th May 2011 for £124,950 and since then the market in the area has increased by 39.9%. The building has had a total of 5 sales since 1995.
1, William Street, Cardiff, CF11 9JX has seen no sales in the last three years and no sales in the last twelve months.
Sold May 2011£124,950 | 2 Bed FlatWilliam Street1B, William Street, Cardiff, CF11 9JX
Sold Apr 2005£105,000 | 2 Bed FlatWilliam Street1B, William Street, Cardiff, CF11 9JX
Sold May 2001£55,000 | 1 Bed FlatWilliam Street1A, William Street, Cardiff, CF11 9JX
Sold May 2001£57,000 | 2 Bed FlatWilliam Street1B, William Street, Cardiff, CF11 9JX
Sold Nov 1998£36,500 | 1 Bed FlatWilliam Street1A, William Street, Cardiff, CF11 9JX
Property Typesin 1 William Street
- 1 period flat built between 1800 and 1911
- 1 flat of an unknown age
- period flat (1)
- flat (1)
Energy Efficiencyof properties in 1 William Street
- Energy Performance Certificate (EPC) surveys conducted for 1 property.
- The dominant rating is E.
- A (0)
- E (1)
- B (0)
- F (0)
- C (0)
- G (0)
- D (0)
- No EPC (1)
Top 3 Most Expensive Saleson William Street, Cardiff, CF11
Schools Nearbyto 1, William Street, Cardiff, CF11 9JX
Public Transport Nearbyto 1, William Street, Cardiff, CF11 9JX
The closest station to 1, William Street, Cardiff, CF11 9JX is Ninian Park station which is 1.4 kilometres away.
- 1.4kmNinian Park
- 1.6kmCathays
- 1.9kmWaun-Gron Park
- 2.1kmCardiff Central
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