Firs Avenue - SL4 4BL
Key Postcode Insights
SL4 4BL is a residential postcode situated on Firs Avenue, Windsor, SL4 with 20 addresses.
It ranks as the 858th largest and 604th most expensive of the 1,256 postcodes in the SL4 area. The most common property type is a modern house built after 1980.
The postcode contains a total of 20 properties: 20 houses.
- Ave. Sale Price
- £528,158
- 10 Year change
- up 14.0%
- Ave. Rental Price
- £2,073pcm
- 10 Year change
- up 44.8%
- Ave. £ per ft²
- £639/ft²
- Ave. Gross Yield
- 4.7%/year/yr
Key Postcode Insights
SL4 4BL is a residential postcode situated on Firs Avenue, Windsor, SL4 with 20 addresses.
It ranks as the 858th largest and 604th most expensive of the 1,256 postcodes in the SL4 area. The most common property type is a modern house built after 1980.
The postcode contains a total of 20 properties: 20 houses.
- Ave. Sale Price
- £528,158
- 10 Year change
- up 14.0%
- Ave. Rental Price
- £2,073pcm
- 10 Year change
- up 44.8%
- Ave. £ per ft²
- £639/ft²
- Ave. Gross Yield
- 4.7%/year/yr
Explore Propertiesin SL4 4BL
- 1 Firs Avenue
4 Bed Mid-century House
- 2 Firs Avenue
3 Bed Mid-century House
- 3 Firs Avenue
Unknown
- 4 Firs Avenue
3 Bed Mid-century House
- 5 Firs Avenue
4 Bed Modern House
Sales Market Trends
The last sale in SL4 4BL sold for £420,000 on 14th November 2025. Since then prices are up an average of 0.3%.
The current average value in the postcode is £528,158.
The SL4 4BL Sales Market has increased by 14.0% over the last 10 years.
| Period | Year on Year | Average Price |
|---|---|---|
| June 2026 | -0.9% | £528,158 |
| June 2025 | 2.4% | £533,035 |
| June 2024 | -2.5% | £520,680 |
| June 2023 | 1% | £534,080 |
| June 2022 | 7.6% | £528,717 |
| June 2021 | 4.2% | £491,474 |
| June 2020 | 2.7% | £471,445 |
| June 2019 | -1.1% | £459,216 |
| June 2018 | -0.1% | £464,136 |
| June 2017 | 0.3% | £464,664 |
| June 2016 | 7.9% | £463,295 |
| June 2015 | 8% | £429,537 |
| June 2014 | 12.6% | £397,604 |
| June 2013 | 5% | £353,255 |
| June 2012 | -2.6% | £336,470 |
| June 2011 | 4.7% | £345,374 |
| June 2010 | 16.2% | £330,021 |
| June 2009 | -13.2% | £283,993 |
| June 2008 | -1% | £327,112 |
| June 2007 | 0% | £330,326 |
Rental Market Trends
The current average rental value in the postcode is £2,073.
The SL4 4BL Rental Market has increased by 44.8% over the last 10 years.
| Period | Year on Year | Average Price |
|---|---|---|
| June 2026 | 2.2% | £2,073pcm |
| June 2025 | 2.3% | £2,027pcm |
| June 2024 | 7.3% | £1,982pcm |
| June 2023 | 10.5% | £1,847pcm |
| June 2022 | 9.2% | £1,671pcm |
| June 2021 | 3.9% | £1,530pcm |
| June 2020 | 1.3% | £1,474pcm |
| June 2019 | 0.6% | £1,455pcm |
| June 2018 | 2.6% | £1,446pcm |
| June 2017 | -1.6% | £1,409pcm |
| June 2016 | -0.9% | £1,431pcm |
| June 2015 | 3.2% | £1,444pcm |
| June 2014 | 5.6% | £1,400pcm |
| June 2013 | 0.6% | £1,325pcm |
| June 2012 | -0.2% | £1,317pcm |
| June 2011 | 10.5% | £1,319pcm |
| June 2010 | 6% | £1,193pcm |
| June 2009 | -8% | £1,125pcm |
| June 2008 | -0.4% | £1,223pcm |
| June 2007 | 0% | £1,228pcm |
Sales History
The last sale was on 14th November 2025 for £420,000 and since then the market in the area has increased by 0.3%. The postcode has had a total of 33 sales since 1995.
SL4 4BL has seen 2 sales in the last three years and 2 sales in the last twelve months.
- Sold Nov 2025£420,000 | 2 Bed House19, Firs Avenue, Windsor, SL4 4BL19, Firs Avenue, Windsor, SL4 4BL
- Sold Oct 2025£450,000 | 2 Bed House13, Firs Avenue, Windsor, SL4 4BL13, Firs Avenue, Windsor, SL4 4BL
- Sold Feb 2022£512,502 | 3 Bed House20, Firs Avenue, Windsor, SL4 4BL20, Firs Avenue, Windsor, SL4 4BL
- Sold Dec 2021£460,000 | 3 Bed House4, Firs Avenue, Windsor, SL4 4BL4, Firs Avenue, Windsor, SL4 4BL
- Sold Oct 2018£320,000 | 2 Bed House19, Firs Avenue, Windsor, SL4 4BL19, Firs Avenue, Windsor, SL4 4BL
Nearby Postcodes
SL4 4BL is the 858th largest and the 604th most expensive postcode out of the 1,256 postcodes in the SL4 area.
- SL4 3RL, Hatch Lane, Windsor, SL4SL4 3RL9 Addresses|50 m away
- SL4 4DA, Clewer Hill Road, Windsor, SL4SL4 4DA6 Addresses|62 m away
- SL4 4EF, Firs Avenue, Windsor, SL4SL4 4EF31 Addresses|68 m away
- SL4 3RW, Hatch Lane, Windsor, SL4SL4 3RW13 Addresses|97 m away
- SL4 4DB, Clewer Hill Road, Windsor, SL4SL4 4DB14 Addresses|102 m away
Property Types
- 10 modern houses built after 1980
- 4 mid-century houses built between 1936 and 1979
- 6 other addresses of unknown type
- modern house (10)
- mid-century house (4)
- Unknown (6)
Energy Efficiency
- Energy Performance Certificate (EPC) surveys conducted for 14 properties.
- The most common rating is C.
- A (0)
- E (1)
- B (0)
- F (0)
- C (11)
- G (0)
- D (2)
- No EPC (6)
Top 3 Most Expensive Sales
- Sold Feb 2022£512,502 | 3 Bed House20, Firs Avenue, Windsor, SL4 4BL20, Firs Avenue, Windsor, SL4 4BL
- Sold Dec 2021£460,000 | 3 Bed House4, Firs Avenue, Windsor, SL4 4BL4, Firs Avenue, Windsor, SL4 4BL
- Sold Oct 2025£450,000 | 2 Bed House13, Firs Avenue, Windsor, SL4 4BL13, Firs Avenue, Windsor, SL4 4BL
Schools Nearby
- Clewer Green CofE First School100 m away
- Hilltop First School500 m away
- Oakfield First School700 m away
- Windsor Girls' School400 m away
- The Windsor Boys' School1.4 km away
- Churchmead Church of England (VA) School4.0 km away
More reading links
Public Transport Nearby
The closest station to SL4 4BL is Windsor & Eton Central station, which is 2.0 kilometres away.
- Windsor & Eton Central|2.0 km away
- Windsor & Eton Riverside|2.3 km away
- Datchet|3.9 km away
- Slough|5.2 km away
