St. Helens Avenue - SA1 4NW
Key Postcode Insights
SA1 4NW is a residential postcode situated on St. Helens Avenue, Swansea, SA1 with 47 addresses.
It ranks as the 984th largest and 881st most expensive of the 1,104 postcodes in the SA1 area. The most common property type is a period house built between 1800 and 1911.
The postcode contains a total of 47 properties: 35 houses, 11 flats and 1 other property.
- Ave. Sale Price
- £179,437
- 10 Year change
- up 40.4%
- Ave. Rental Price
- £858pcm
- 10 Year change
- up 57.7%
- Ave. £ per ft²
- £164/ft²
- Ave. Gross Yield
- 5.7%/year/yr
Key Postcode Insights
SA1 4NW is a residential postcode situated on St. Helens Avenue, Swansea, SA1 with 47 addresses.
It ranks as the 984th largest and 881st most expensive of the 1,104 postcodes in the SA1 area. The most common property type is a period house built between 1800 and 1911.
The postcode contains a total of 47 properties: 35 houses, 11 flats and 1 other property.
- Ave. Sale Price
- £179,437
- 10 Year change
- up 40.4%
- Ave. Rental Price
- £858pcm
- 10 Year change
- up 57.7%
- Ave. £ per ft²
- £164/ft²
- Ave. Gross Yield
- 5.7%/year/yr
Explore Propertiesin SA1 4NW
- Brockley Court
Period Building | 9 Units
- 104 St. Helens Avenue
Building  |  2 Flats
- 105 St. Helens Avenue
4 Bed Period House
- 106 St. Helens Avenue
Building  |  2 Flats
- 107 St. Helens Avenue
4 Bed Period House
Sales Market Trends
The last sale in SA1 4NW sold for £180,000 on 5th September 2025. Since then prices are up an average of 1.6%.
The current average value in the postcode is £179,437.
The SA1 4NW Sales Market has increased by 40.4% over the last 10 years.
| Period | Year on Year | Average Price |
|---|---|---|
| June 2026 | 2% | £179,437 |
| June 2025 | 1.1% | £175,857 |
| June 2024 | 4.1% | £174,016 |
| June 2023 | 1.3% | £167,082 |
| June 2022 | 9.7% | £164,940 |
| June 2021 | 6.7% | £150,349 |
| June 2020 | 0.8% | £140,898 |
| June 2019 | 4.7% | £139,730 |
| June 2018 | 1.6% | £133,479 |
| June 2017 | 2.8% | £131,355 |
| June 2016 | 3.1% | £127,760 |
| June 2015 | 0% | £123,903 |
| June 2014 | 5.1% | £123,952 |
| June 2013 | -1.9% | £117,910 |
| June 2012 | -3% | £120,237 |
| June 2011 | -4% | £123,907 |
| June 2010 | 6.6% | £129,042 |
| June 2009 | -10.5% | £121,058 |
| June 2008 | -3.9% | £135,323 |
| June 2007 | 0% | £140,775 |
Rental Market Trends
The current average rental value in the postcode is £858.
The SA1 4NW Rental Market has increased by 57.7% over the last 10 years.
| Period | Year on Year | Average Price |
|---|---|---|
| June 2026 | 2.5% | £858pcm |
| June 2025 | 3.5% | £837pcm |
| June 2024 | 6.4% | £809pcm |
| June 2023 | 7.3% | £760pcm |
| June 2022 | 12.9% | £709pcm |
| June 2021 | 8% | £627pcm |
| June 2020 | 1.2% | £581pcm |
| June 2019 | 2.4% | £574pcm |
| June 2018 | 0.4% | £561pcm |
| June 2017 | 2.6% | £559pcm |
| June 2016 | 2.4% | £544pcm |
| June 2015 | 1% | £531pcm |
| June 2014 | 1.3% | £526pcm |
| June 2013 | 0.1% | £519pcm |
| June 2012 | 1.1% | £519pcm |
| June 2011 | -0.4% | £513pcm |
| June 2010 | 2.5% | £515pcm |
| June 2009 | -5.8% | £503pcm |
| June 2008 | 4.1% | £534pcm |
| June 2007 | 0% | £513pcm |
Sales History
The last sale was on 5th September 2025 for £180,000 and since then the market in the area has increased by 1.6%. The postcode has had a total of 54 sales since 1995.
SA1 4NW has seen 6 sales in the last three years and 2 sales in the last twelve months.
- Sold Sep 2025£180,000 | 3 Bed House138, St. Helens Avenue, Swansea, SA1 4NW138, St. Helens Avenue, Swansea, SA1 4NW
- Sold Aug 2025£130,000 | 3 Bed House129, St. Helens Avenue, Swansea, SA1 4NW129, St. Helens Avenue, Swansea, SA1 4NW
- Sold Jan 2025£195,000 | 3 Bed House119, St. Helens Avenue, Swansea, SA1 4NW119, St. Helens Avenue, Swansea, SA1 4NW
- Sold Jun 2024£143,000 | 3 Bed House121, St. Helens Avenue, Swansea, SA1 4NW121, St. Helens Avenue, Swansea, SA1 4NW
- Sold Nov 2023£196,620 | 4 Bed House120, St. Helens Avenue, Swansea, SA1 4NW120, St. Helens Avenue, Swansea, SA1 4NW
Nearby Postcodes
SA1 4NW is the 984th largest and the 881st most expensive postcode out of the 1,104 postcodes in the SA1 area.
- SA1 4NN, St. Helens Avenue, Swansea, SA1SA1 4NN43 Addresses|49 m away
- SA1 4LX, King Edward's Road, Swansea, SA1SA1 4LX20 Addresses|51 m away
- SA1 4LU, King Edward's Road, Swansea, SA1SA1 4LU45 Addresses|92 m away
- SA1 4LY, King Edward's Road, Swansea, SA1SA1 4LY1 Addresses|99 m away
- SA1 4LN, King Edward's Road, Swansea, SA1SA1 4LN25 Addresses|111 m away
Property Types
- 30 period houses built between 1800 and 1911
- 13 period flats built between 1800 and 1911
- 4 other addresses of unknown type
- period house (30)
- period flat (13)
- Unknown (4)
Energy Efficiency
- Energy Performance Certificate (EPC) surveys conducted for 42 properties.
- The most common rating is D.
- A (0)
- E (4)
- B (0)
- F (2)
- C (13)
- G (0)
- D (23)
- No EPC (4)
Top 3 Most Expensive Sales
- Sold Oct 2017£290,000 | 2 Bed FlatFlat 3, Gabriel Lofts 70, St. Helens Avenue, Swansea, SA1 4NNFlat 3, Gabriel Lofts 70, St. Helens Avenue, Swansea, SA1 4NN
- Sold Jul 2025£285,000 | 4 Bed House5, St. Helens Avenue, Swansea, SA1 4ND5, St. Helens Avenue, Swansea, SA1 4ND
- Sold Dec 2021£253,000 | 5 Bed House1, St. Helens Avenue, Swansea, SA1 4ND1, St. Helens Avenue, Swansea, SA1 4ND
Schools Nearby
Public Transport Nearby
The closest station to SA1 4NW is Swansea station, which is 2.0 kilometres away.
- Swansea|2.0 km away
- Gowerton|6.3 km away
- Llansamlet|7.6 km away
- Skewen|9.7 km away
