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SL4 4NQHouse Prices / South East, Windsor and Maidenhead, Foster Avenue
Last updated May 2026
Key Postcode Insights
SL4 4NQ is a residential postcode situated on Foster Avenue, Windsor, SL4 with 23 addresses.
It ranks as the 928th largest and 349th most expensive of the 1,256 postcodes in the SL4 area. The dominant property type is a mid-century house built between 1936 and 1979.
The postcode contains a total of 23 properties: 13 houses and 10 flats.
23
Properties
- Houses
- Flats
Key Postcode Insights
SL4 4NQ is a residential postcode situated on Foster Avenue, Windsor, SL4 with 23 addresses.
It ranks as the 928th largest and 349th most expensive of the 1,256 postcodes in the SL4 area. The dominant property type is a mid-century house built between 1936 and 1979.
The postcode contains a total of 23 properties: 13 houses and 10 flats.
23
Properties
- Houses
- Flats
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House Pricesin SL4 4NQ
Sale prices range from £207,852 for 2 bedroom leasehold flats (484 ft2) to £458,468 for 3 bedroom freehold houses with a garden (1,033 ft2) .
Monthly rental prices range from £1,084 pcm for 2 bed flats to £2,102 pcm for 3 bed houses.
The gross rental yield is between 5.5% and 6.3%.
The average value per square foot is £444.
Average Sale Value
£343,836
Average Rental Value
£1,636 pcm
Average Rental Yield
5.7% /year
Average Value Per Sqft
£444 /ft2
Sales Market Trendsin SL4 4NQ
The last sale in SL4 4NQ sold for £415,000 on 31st March 2025. Since then prices are down an average of 0.2%.
The current average value in the postcode is £343,836.
The SL4 4NQ Sales Market has increased by 8.9% over the last 10 years.
| Period | Year on Year | Average Price |
|---|---|---|
| April 2026 | -0.4% | £343,836 |
| April 2025 | 2.2% | £345,178 |
| April 2024 | -3.1% | £337,787 |
| April 2023 | 1.2% | £348,568 |
| April 2022 | 5.1% | £344,363 |
| April 2021 | 3.5% | £327,722 |
| April 2020 | 2.2% | £316,552 |
| April 2019 | -1.9% | £309,811 |
| April 2018 | -0.5% | £315,835 |
| April 2017 | 0.5% | £317,300 |
| April 2016 | 10.6% | £315,618 |
| April 2015 | 11% | £285,388 |
| April 2014 | 10% | £257,047 |
| April 2013 | 5.1% | £233,771 |
| April 2012 | -2.5% | £222,383 |
| April 2011 | 4.4% | £227,972 |
| April 2010 | 11.2% | £218,277 |
| April 2009 | -16.7% | £196,374 |
| April 2008 | 4.3% | £235,614 |
| April 2007 | 0% | £225,824 |
Rental Market Trendsin SL4 4NQ
The current average rental value in the postcode is £1,636.
The SL4 4NQ Rental Market has increased by 39.4% over the last 10 years.
| Period | Year on Year | Average Price |
|---|---|---|
| April 2026 | 4.8% | £1,636pcm |
| April 2025 | 3% | £1,561pcm |
| April 2024 | 8.4% | £1,516pcm |
| April 2023 | 9.7% | £1,399pcm |
| April 2022 | 6.1% | £1,275pcm |
| April 2021 | 3.1% | £1,201pcm |
| April 2020 | 0.9% | £1,165pcm |
| April 2019 | -0.1% | £1,154pcm |
| April 2018 | 0.9% | £1,156pcm |
| April 2017 | -2.4% | £1,145pcm |
| April 2016 | 1.6% | £1,174pcm |
| April 2015 | 5.2% | £1,155pcm |
| April 2014 | 4.6% | £1,098pcm |
| April 2013 | 1.9% | £1,050pcm |
| April 2012 | 0.9% | £1,031pcm |
| April 2011 | 8.7% | £1,021pcm |
| April 2010 | -0.3% | £940pcm |
| April 2009 | -8.1% | £943pcm |
| April 2008 | 1% | £1,027pcm |
| April 2007 | 0% | £1,017pcm |
Explore Propertiesin SL4 4NQ, Foster Avenue, Windsor, SL4
- 1, Foster Avenue, Windsor, SL4 4NQ
- 3, Foster Avenue, Windsor, SL4 4NQ3 bed early-century house
- 5, Foster Avenue, Windsor, SL4 4NQ
- 7, Foster Avenue, Windsor, SL4 4NQ3 bed mid-century house
- 9, Foster Avenue, Windsor, SL4 4NQ
- 11, Foster Avenue, Windsor, SL4 4NQ3 bed mid-century house
- 13, Foster Avenue, Windsor, SL4 4NQ3 bed mid-century house
- 15, Foster Avenue, Windsor, SL4 4NQ3 bed mid-century house
- 17, Foster Avenue, Windsor, SL4 4NQ3 bed mid-century house
- 19, Foster Avenue, Windsor, SL4 4NQ
- 21, Foster Avenue, Windsor, SL4 4NQ2 bed house
- 23, Foster Avenue, Windsor, SL4 4NQ
- 25, Foster Avenue, Windsor, SL4 4NQ3 bed mid-century house
- 27, Foster Avenue, Windsor, SL4 4NQ2 bed mid-century flat
- 29, Foster Avenue, Windsor, SL4 4NQ2 bed mid-century flat
- 31, Foster Avenue, Windsor, SL4 4NQ2 bed mid-century flat
- 33, Foster Avenue, Windsor, SL4 4NQ2 bed mid-century flat
- 35, Foster Avenue, Windsor, SL4 4NQ
- 37, Foster Avenue, Windsor, SL4 4NQ
- 39, Foster Avenue, Windsor, SL4 4NQ2 bed mid-century flat
- 41, Foster Avenue, Windsor, SL4 4NQ2 bed mid-century flat
- 43, Foster Avenue, Windsor, SL4 4NQ2 bed modern flat
- 45, Foster Avenue, Windsor, SL4 4NQ
Sales Historyin SL4 4NQ
The last sale was on 31st March 2025 for £415,000 and since then the market in the area has decreased by 0.2%. The postcode has had a total of 16 sales since 1995.
SL4 4NQ has seen 2 sales in the last three years and no sales in the last twelve months.
Sold Mar 2025£415,000 | 3 Bed HouseFoster Avenue13, Foster Avenue, Windsor, SL4 4NQ
Sold Sep 2024£455,000 | 3 Bed HouseFoster Avenue17, Foster Avenue, Windsor, SL4 4NQ
Sold Feb 2021£427,000 | 3 Bed HouseFoster Avenue17, Foster Avenue, Windsor, SL4 4NQ
Sold Feb 2020£260,000 | 2 Bed FlatFoster Avenue43, Foster Avenue, Windsor, SL4 4NQ
Sold Sep 2018£250,000 | 2 Bed HouseFoster Avenue21, Foster Avenue, Windsor, SL4 4NQ
Sold Jun 2017£420,000 | 3 Bed HouseFoster Avenue11, Foster Avenue, Windsor, SL4 4NQ
Sold Apr 2016£388,000 | 3 Bed HouseFoster Avenue7, Foster Avenue, Windsor, SL4 4NQ
Sold Dec 2014£232,250 | 2 Bed FlatFoster Avenue43, Foster Avenue, Windsor, SL4 4NQ
Sold Feb 2013£243,000 | 3 Bed HouseFoster Avenue17, Foster Avenue, Windsor, SL4 4NQ
Sold Mar 2009£249,950 | 2 Bed HouseFoster Avenue21, Foster Avenue, Windsor, SL4 4NQ
Sold Nov 2007£205,000 | 2 Bed FlatFoster Avenue43, Foster Avenue, Windsor, SL4 4NQ
Sold Jun 2006£172,500 | 2 Bed FlatFoster Avenue43, Foster Avenue, Windsor, SL4 4NQ
Sold Sep 2003£180,000 | 3 Bed HouseFoster Avenue17, Foster Avenue, Windsor, SL4 4NQ
Sold Jan 2001£135,000 | 3 Bed HouseFoster Avenue7, Foster Avenue, Windsor, SL4 4NQ
Sold Oct 1999£28,125 | 3 Bed HouseFoster Avenue25, Foster Avenue, Windsor, SL4 4NQ
Sold May 1995£37,000 | 3 Bed HouseFoster Avenue9, Foster Avenue, Windsor, SL4 4NQ
Nearby Postcodesto SL4 4NQ
SL4 4NQ is the 928th largest and the 349th most expensive postcode out of the 1,256 postcodes in the SL4 area.
- 67 mSL4 4NN, Camm Avenue, Windsor, SL4SL4 4NN4 Addresses
- 74 mSL4 4NJ, Burton Way, Windsor, SL4SL4 4NJ45 Addresses
- 117 mSL4 4NH, Foster Avenue, Windsor, SL4SL4 4NH17 Addresses
- 127 mSL4 4DT, Park Corner, Windsor, SL4SL4 4DT4 Addresses
- 128 mSL4 4NL, Keeler Close, Windsor, SL4SL4 4NL53 Addresses
- 144 mSL4 4NG, Foster Avenue, Windsor, SL4SL4 4NG6 Addresses
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Property Typesin SL4 4NQ
- 1 modern flat built after 1980
- 6 mid-century houses built between 1936 and 1979
- 6 mid-century flats built between 1936 and 1979
- 1 house of an unknown age
- 1 early-century house built between 1912 and 1935
- 8 other addresses of unknown type
- modern flat (1)
- mid-century house (6)
- mid-century flat (6)
- house (1)
- early-century house (1)
- Unknown (8)
Energy Efficiencyof properties in SL4 4NQ
- Energy Performance Certificate (EPC) surveys conducted for 14 properties.
- The dominant rating is C.
- A (0)
- E (0)
- B (0)
- F (0)
- C (11)
- G (0)
- D (3)
- No EPC (9)
Schools Nearbyto SL4 4NQ
The nearest primary school to SL4 4NQ is Hilltop First School which is 201 metres away.
- 201mHilltop First School
- 487mDedworth Green First School
- 746mClewer Green CofE First School
The nearest secondary school is Windsor Girls' School which is 1.1 kilometres away.
- 1.1kmWindsor Girls' School
- 1.8kmThe Windsor Boys' School
- 4.3kmSlough and Eton Church of England Business and Enterprise College
More reading links
Public Transport Nearbyto SL4 4NQ
The closest station to SL4 4NQ is Windsor & Eton Central station which is 2.5 kilometres away.
- 2.5kmWindsor & Eton Central
- 2.9kmWindsor & Eton Riverside
- 4.6kmDatchet
- 5.4kmBurnham
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