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William StreetHouse Prices / Wales, Cardiff
Last updated Jun 2026
Key Street Insights
William Street is a residential street with 8 addresses.
It ranks as the 50th largest and 184th most expensive of the 335 streets in the CF11 area. The dominant property type is a period flat built between 1800 and 1911.
The street contains a total of 8 properties: 5 houses and 3 flats.
8
Properties
- Houses
- Flats
Key Street Insights
William Street is a residential street with 8 addresses.
It ranks as the 50th largest and 184th most expensive of the 335 streets in the CF11 area. The dominant property type is a period flat built between 1800 and 1911.
The street contains a total of 8 properties: 5 houses and 3 flats.
8
Properties
- Houses
- Flats
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House Priceson William Street
Sale prices range from £148,972 for 1 bedroom leasehold flats with a garden (419 ft2) to £300,278 for 2 bedroom freehold houses with a garden (785 ft2) .
Monthly rental prices range from £959 pcm for 1 bed flats to £1,663 pcm for 2 bed houses.
The gross rental yield is between 6.6% and 7.8%.
The average value per square foot is £368.
Average Sale Value
£236,201
Average Rental Value
£1,396 pcm
Average Rental Yield
7.1% /year
Average Value Per Sqft
£368 /ft2
Sales Market Trendson William Street
The last sale on William Street sold for £185,000 on 28th October 2015. Since then prices are up an average of 36.9%.
The current average value in the street is £236,201.
The William Street Sales Market has increased by 27.9% over the last 10 years.
| Period | Year on Year | Average Price |
|---|---|---|
| May 2026 | -0.9% | £236,201 |
| May 2025 | 1.3% | £238,275 |
| May 2024 | -0.4% | £235,227 |
| May 2023 | 1.6% | £236,092 |
| May 2022 | 8% | £232,445 |
| May 2021 | 5.8% | £215,302 |
| May 2020 | 1.9% | £203,560 |
| May 2019 | 1.7% | £199,839 |
| May 2018 | 4.6% | £196,460 |
| May 2017 | 1.7% | £187,875 |
| May 2016 | 5.1% | £184,659 |
| May 2015 | 4.8% | £175,694 |
| May 2014 | 5.5% | £167,644 |
| May 2013 | 1.7% | £158,909 |
| May 2012 | -1.4% | £156,272 |
| May 2011 | -0.4% | £158,491 |
| May 2010 | 5% | £159,104 |
| May 2009 | -12.5% | £151,571 |
| May 2008 | -2.9% | £173,316 |
| May 2007 | 0% | £178,549 |
Rental Market Trendson William Street
The current average rental value in the street is £1,396.
The William Street Rental Market has increased by 52.9% over the last 10 years.
| Period | Year on Year | Average Price |
|---|---|---|
| May 2026 | 2.6% | £1,396pcm |
| May 2025 | 3.2% | £1,361pcm |
| May 2024 | 7% | £1,319pcm |
| May 2023 | 11.9% | £1,232pcm |
| May 2022 | 10.5% | £1,101pcm |
| May 2021 | 2.5% | £996pcm |
| May 2020 | 2.9% | £972pcm |
| May 2019 | 0.4% | £945pcm |
| May 2018 | 1.9% | £941pcm |
| May 2017 | 1.2% | £924pcm |
| May 2016 | 5.1% | £913pcm |
| May 2015 | 3% | £868pcm |
| May 2014 | 3.5% | £843pcm |
| May 2013 | 1.7% | £815pcm |
| May 2012 | 0.9% | £801pcm |
| May 2011 | 2.3% | £794pcm |
| May 2010 | 1.9% | £776pcm |
| May 2009 | -3% | £761pcm |
| May 2008 | 1.2% | £785pcm |
| May 2007 | 0% | £776pcm |
Properties and Buildingson William Street, Cardiff, CF11
- Pontcanna Lodge, William Street, Cardiff, CF11 9JX
- 1, William Street, Cardiff, CF11 Period building2 units
- 2, William Street, Cardiff, CF11 Modern building2 units
- 4, William Street, Cardiff, CF11 9JX
- 6, William Street, Cardiff, CF11 9JX2 bed period house
- 8, William Street, Cardiff, CF11 9JX2 bed period house
Sales Historyon William Street, Cardiff, CF11
The last sale was on 28th October 2015 for £185,000 and since then the market in the area has increased by 36.9%. The street has had a total of 13 sales since 1995.
William Street, Cardiff, CF11 has seen no sales in the last three years and no sales in the last twelve months.
Sold Oct 2015£185,000 | 2 Bed HouseWilliam Street2, William Street, Cardiff, CF11 9JX
Sold Dec 2014£183,700 | 2 Bed HouseWilliam Street8, William Street, Cardiff, CF11 9JX
Sold Oct 2012£214,000 | 2 Bed HouseWilliam Street6, William Street, Cardiff, CF11 9JX
Sold Jun 2011£128,000 | 2 Bed FlatWilliam Street2A, William Street, Cardiff, CF11 9JX
Sold May 2011£124,950 | 2 Bed FlatWilliam Street1B, William Street, Cardiff, CF11 9JX
Sold Apr 2010£210,000 | 2 Bed HouseWilliam Street6, William Street, Cardiff, CF11 9JX
Sold Jul 2009£130,000 | 2 Bed HouseWilliam Street6, William Street, Cardiff, CF11 9JX
Sold Aug 2008£140,000 | 2 Bed FlatWilliam Street2A, 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 Sep 1999£49,000 | 2 Bed FlatWilliam Street2A, William Street, Cardiff, CF11 9JX
Sold Nov 1998£36,500 | 1 Bed FlatWilliam Street1A, William Street, Cardiff, CF11 9JX
Top 3 Most Expensive Saleson William Street, Cardiff, CF11
Nearby Streetsto William Street, Cardiff, CF11
William Street, Cardiff, CF11 is the 50th largest and the 184th most expensive street in the CF11 area.
- 53 mPontcanna Place, Cardiff, CF1123 Addresses
- 59 mMortimer Road, Cardiff, CF1183 Addresses
- 95 mMaldwyn Street, Cardiff, CF1116 Addresses
- 113 mIestyn Street, Cardiff, CF1113 Addresses
- 127 mIestynian Avenue, Cardiff, CF117 Addresses
- 128 mGileston Road, Cardiff, CF1125 Addresses
Postcodeson William Street, Cardiff, CF11
There is 1 postcode on William Street, Cardiff, CF11.
- House prices in CF11 9JX8 Addresses
Property Typesin William Street
- 2 period houses built between 1800 and 1911
- 2 period flats built between 1800 and 1911
- 2 modern flats built after 1980
- 2 other addresses of unknown type
- period house (2)
- period flat (2)
- modern flat (2)
- Unknown (2)
Energy Efficiencyof properties on William Street
- Energy Performance Certificate (EPC) surveys conducted for 5 properties.
- The dominant rating is C.
- A (0)
- E (2)
- B (0)
- F (0)
- C (2)
- G (0)
- D (1)
- No EPC (3)
Schools Nearbyto William Street, Cardiff, CF11
Public Transport Nearbyto William Street, Cardiff, CF11
The closest station to William Street, Cardiff, CF11 is Ninian Park station which is 1.4 kilometres away.
- 1.4kmNinian Park
- 1.6kmCathays
- 1.9kmWaun-Gron Park
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