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Bricks&Logic is a trading name of Urban Markets Ltd
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VAT No. GB 287 0845 68
Registered Address: 2 Leman St, London E1 8FA
AL6 0SXHouse Prices / East of England, Welwyn Hatfield, Mardley Heights
Last updated May 2026
Key Postcode Insights
AL6 0SX is a residential postcode situated on Mardley Heights, Welwyn, AL6 with 1 addresses.
It ranks as the 14th largest and 223rd most expensive of the 487 postcodes in the AL6 area. The dominant property type is a mid-century house built between 1936 and 1979.
The postcode contains a total of 1 properties: 1 house.
1
Property
- Houses
Key Postcode Insights
AL6 0SX is a residential postcode situated on Mardley Heights, Welwyn, AL6 with 1 addresses.
It ranks as the 14th largest and 223rd most expensive of the 487 postcodes in the AL6 area. The dominant property type is a mid-century house built between 1936 and 1979.
The postcode contains a total of 1 properties: 1 house.
1
Property
- Houses
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House Pricesin AL6 0SX
Sale prices range from £766,360 for 4 bedroom freehold houses with a garden (1,474 ft2) to £766,360 for 4 bedroom freehold houses with a garden (1,474 ft2) .
Monthly rental prices range from £2,711 pcm for 4 bed houses to £2,711 pcm for 4 bed houses.
The gross rental yield is between 4.2% and 4.2%.
The average value per square foot is £520.
Average Sale Value
£766,360
Average Rental Value
£2,711 pcm
Average Rental Yield
4.2% /year
Average Value Per Sqft
£520 /ft2
Sales Market Trendsin AL6 0SX
The last sale in AL6 0SX sold for £750,000 on 25th November 2021. Since then prices are up an average of 2.8%.
The current average value in the postcode is £766,360.
The AL6 0SX Sales Market has increased by 20.2% over the last 10 years.
| Period | Year on Year | Average Price |
|---|---|---|
| April 2026 | -1.7% | £766,360 |
| April 2025 | 3.6% | £779,886 |
| April 2024 | -4.1% | £752,638 |
| April 2023 | 1.4% | £784,786 |
| April 2022 | 7.8% | £773,993 |
| April 2021 | 8.2% | £717,728 |
| April 2020 | 0.4% | £663,401 |
| April 2019 | -2.1% | £660,761 |
| April 2018 | 1% | £675,221 |
| April 2017 | 4.9% | £668,489 |
| April 2016 | 13.7% | £637,381 |
| April 2015 | 8.5% | £560,613 |
| April 2014 | 10.6% | £516,551 |
| April 2013 | 6.5% | £466,962 |
| April 2012 | 0.7% | £438,532 |
| April 2011 | 4.5% | £435,336 |
| April 2010 | 8.1% | £416,787 |
| April 2009 | -13.8% | £385,466 |
| April 2008 | 5.2% | £447,132 |
| April 2007 | 0% | £425,052 |
Rental Market Trendsin AL6 0SX
The current average rental value in the postcode is £2,711.
The AL6 0SX Rental Market has increased by 52.3% over the last 10 years.
| Period | Year on Year | Average Price |
|---|---|---|
| April 2026 | 2.9% | £2,711pcm |
| April 2025 | 5% | £2,636pcm |
| April 2024 | 7.5% | £2,509pcm |
| April 2023 | 9.4% | £2,334pcm |
| April 2022 | 9.1% | £2,134pcm |
| April 2021 | 5.3% | £1,955pcm |
| April 2020 | 0.8% | £1,857pcm |
| April 2019 | 2.2% | £1,842pcm |
| April 2018 | 0.8% | £1,802pcm |
| April 2017 | 0.4% | £1,787pcm |
| April 2016 | 5.8% | £1,781pcm |
| April 2015 | 5.9% | £1,683pcm |
| April 2014 | 5.7% | £1,589pcm |
| April 2013 | 3.5% | £1,504pcm |
| April 2012 | 3.4% | £1,453pcm |
| April 2011 | 2.1% | £1,405pcm |
| April 2010 | 6.5% | £1,377pcm |
| April 2009 | -7% | £1,293pcm |
| April 2008 | 6.1% | £1,390pcm |
| April 2007 | 0% | £1,310pcm |
Explore Propertiesin AL6 0SX, Mardley Heights, Welwyn, AL6
Sales Historyin AL6 0SX
The last sale was on 25th November 2021 for £750,000 and since then the market in the area has increased by 2.8%. The postcode has had a total of 2 sales since 1995.
AL6 0SX has seen no sales in the last three years and no sales in the last twelve months.
Nearby Postcodesto AL6 0SX
AL6 0SX is the 14th largest and the 223rd most expensive postcode out of the 487 postcodes in the AL6 area.
- 42 mAL6 0TX, Mardley Heights, Welwyn, AL6AL6 0TX13 Addresses
- 83 mAL6 0TZ, Mardley Avenue, Welwyn, AL6AL6 0TZ3 Addresses
- 88 mAL6 0TT, Mardley Hill, Welwyn, AL6AL6 0TT17 Addresses
- 102 mAL6 0TU, Mardley Avenue, Welwyn, AL6AL6 0TU14 Addresses
- 138 mAL6 0TY, Hillside Way, Welwyn, AL6AL6 0TY27 Addresses
- 140 mAL6 0UA, Woodacre Drive, Welwyn, AL6AL6 0UA4 Addresses
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Property Typesin AL6 0SX
- 1 mid-century house built between 1936 and 1979
- mid-century house (1)
Energy Efficiencyof properties in AL6 0SX
- Energy Performance Certificate (EPC) surveys conducted for 1 property.
- The dominant rating is D.
- A (0)
- E (0)
- B (0)
- F (0)
- C (0)
- G (0)
- D (1)
- No EPC (0)
Top 3 Most Expensive Saleson Mardley Heights
Schools Nearbyto AL6 0SX
The nearest primary school to AL6 0SX is St Michael's Woolmer Green CofE VA Primary School which is 540 metres away.
- 540mSt Michael's Woolmer Green CofE VA Primary School
- 984mOaklands Primary School
- 1.9kmAll Saints Church of England Voluntary Aided Primary School, Datchworth
The nearest secondary school is Monk's Walk School which is 3.5 kilometres away.
- 3.5kmMonk's Walk School
- 4.9kmBarnwell School
- 4.9kmRidgeway Academy
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Public Transport Nearbyto AL6 0SX
The closest station to AL6 0SX is Knebworth station which is 2.3 kilometres away.
- 2.3kmKnebworth
- 2.6kmWelwyn North
- 4.6kmWatton-at-Stone
- 5.2kmWelwyn Garden City
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