Mardley Hill - AL6 0TT
Key Postcode Insights
AL6 0TT is a residential postcode situated on Mardley Hill, Welwyn, AL6 with 17 addresses.
It ranks as the 404th largest and 243rd most expensive of the 487 postcodes in the AL6 area. The most common property type is a mid-century house built between 1936 and 1979.
The postcode contains a total of 17 properties: 17 houses.
- Ave. Sale Price
- £849,353
- 10 Year change
- up 21.0%
- Ave. Rental Price
- £3,001pcm
- 10 Year change
- up 54.2%
- Ave. £ per ft²
- £506/ft²
- Ave. Gross Yield
- 4.2%/year/yr
Key Postcode Insights
AL6 0TT is a residential postcode situated on Mardley Hill, Welwyn, AL6 with 17 addresses.
It ranks as the 404th largest and 243rd most expensive of the 487 postcodes in the AL6 area. The most common property type is a mid-century house built between 1936 and 1979.
The postcode contains a total of 17 properties: 17 houses.
- Ave. Sale Price
- £849,353
- 10 Year change
- up 21.0%
- Ave. Rental Price
- £3,001pcm
- 10 Year change
- up 54.2%
- Ave. £ per ft²
- £506/ft²
- Ave. Gross Yield
- 4.2%/year/yr
Explore Propertiesin AL6 0TT
- 23 Mardley Hill
House
- 25A Mardley Hill
House
- 25 Mardley Hill
House
- 27 Mardley Hill
3 Bed Mid-century House
- 29 Mardley Hill
5 Bed Modern House
Sales Market Trends
The last sale in AL6 0TT sold for £950,000 on 2nd September 2025. Since then prices are up an average of 0.3%.
The current average value in the postcode is £849,353.
The AL6 0TT Sales Market has increased by 21.0% over the last 10 years.
| Period | Year on Year | Average Price |
|---|---|---|
| June 2026 | 0% | £849,353 |
| June 2025 | 5.1% | £848,983 |
| June 2024 | -3.8% | £807,483 |
| June 2023 | -0.9% | £839,641 |
| June 2022 | 8.1% | £847,206 |
| June 2021 | 9.4% | £783,644 |
| June 2020 | 0.7% | £716,445 |
| June 2019 | -1.9% | £711,369 |
| June 2018 | 0.6% | £725,370 |
| June 2017 | 2.7% | £721,170 |
| June 2016 | 12.8% | £702,025 |
| June 2015 | 7.8% | £622,398 |
| June 2014 | 10.9% | £577,557 |
| June 2013 | 3.6% | £520,806 |
| June 2012 | 3.1% | £502,946 |
| June 2011 | 3% | £487,935 |
| June 2010 | 12.1% | £473,819 |
| June 2009 | -11.9% | £422,791 |
| June 2008 | 0.8% | £479,637 |
| June 2007 | 0% | £475,698 |
Rental Market Trends
The current average rental value in the postcode is £3,001.
The AL6 0TT Rental Market has increased by 54.2% over the last 10 years.
| Period | Year on Year | Average Price |
|---|---|---|
| June 2026 | 3.9% | £3,001pcm |
| June 2025 | 4.7% | £2,889pcm |
| June 2024 | 7.6% | £2,758pcm |
| June 2023 | 8.1% | £2,564pcm |
| June 2022 | 10.5% | £2,372pcm |
| June 2021 | 6.6% | £2,146pcm |
| June 2020 | 0.7% | £2,013pcm |
| June 2019 | 1% | £1,998pcm |
| June 2018 | 1.3% | £1,978pcm |
| June 2017 | 0.4% | £1,953pcm |
| June 2016 | 5.6% | £1,946pcm |
| June 2015 | 4.6% | £1,842pcm |
| June 2014 | 6.4% | £1,762pcm |
| June 2013 | 0.8% | £1,655pcm |
| June 2012 | 3.5% | £1,642pcm |
| June 2011 | 2.5% | £1,587pcm |
| June 2010 | 9% | £1,548pcm |
| June 2009 | -5.3% | £1,421pcm |
| June 2008 | 3.6% | £1,501pcm |
| June 2007 | 0% | £1,449pcm |
Sales History
The last sale was on 2nd September 2025 for £950,000 and since then the market in the area has increased by 0.3%. The postcode has had a total of 28 sales since 1995.
AL6 0TT has seen 2 sales in the last three years and 1 sale in the last twelve months.
- Sold Sep 2025£950,000 | 4 Bed House49, Mardley Hill, Welwyn, AL6 0TT49, Mardley Hill, Welwyn, AL6 0TT
- Sold Feb 2025£575,000 | 3 Bed House45, Mardley Hill, Welwyn, AL6 0TT45, Mardley Hill, Welwyn, AL6 0TT
- Sold Nov 2022£1,350,000 | 5 Bed House39, Mardley Hill, Welwyn, AL6 0TT39, Mardley Hill, Welwyn, AL6 0TT
- Sold Jun 2020£875,000 | 5 Bed House47, Mardley Hill, Welwyn, AL6 0TT47, Mardley Hill, Welwyn, AL6 0TT
- Sold Feb 2018£857,000 | 5 Bed House29, Mardley Hill, Welwyn, AL6 0TT29, Mardley Hill, Welwyn, AL6 0TT
Nearby Postcodes
AL6 0TT is the 404th largest and the 243rd most expensive postcode out of the 487 postcodes in the AL6 area.
- AL6 0TN, Mardley Hill, Welwyn, AL6AL6 0TN5 Addresses|68 m away
- AL6 0TX, Mardley Heights, Welwyn, AL6AL6 0TX13 Addresses|70 m away
- AL6 0SX, Mardley Heights, Welwyn, AL6AL6 0SX1 Addresses|88 m away
- AL6 0UR, Mardley Dell, Welwyn, AL6AL6 0UR16 Addresses|124 m away
- AL6 0UZ, Mardleywood, Welwyn, AL6AL6 0UZ3 Addresses|126 m away
Property Types
- 2 period houses built between 1800 and 1911
- 2 modern houses built after 1980
- 3 mid-century houses built between 1936 and 1979
- 2 houses of an unknown age
- 2 early-century houses built between 1912 and 1935
- 6 other addresses of unknown type
- period house (2)
- modern house (2)
- mid-century house (3)
- house (2)
- early-century house (2)
- Unknown (6)
Energy Efficiency
- Energy Performance Certificate (EPC) surveys conducted for 9 properties.
- The most common rating is C.
- A (0)
- E (2)
- B (0)
- F (2)
- C (3)
- G (0)
- D (2)
- No EPC (8)
Top 3 Most Expensive Sales
- Sold Nov 2022£1,350,000 | 5 Bed House39, Mardley Hill, Welwyn, AL6 0TT39, Mardley Hill, Welwyn, AL6 0TT
- Sold Oct 2024£1,050,000 | 4 Bed House18, Mardley Hill, Welwyn, AL6 0TN18, Mardley Hill, Welwyn, AL6 0TN
- Sold Sep 2025£950,000 | 4 Bed House49, Mardley Hill, Welwyn, AL6 0TT49, Mardley Hill, Welwyn, AL6 0TT
Schools Nearby
- St Michael's Woolmer Green CofE VA Primary School500 m away
- Oaklands Primary School1.0 km away
- All Saints Church of England Voluntary Aided Primary School, Datchworth1.9 km away
- Monk's Walk School3.5 km away
- Barnwell School4.8 km away
- Ridgeway Academy5.0 km away
More reading links
Public Transport Nearby
The closest station to AL6 0TT is Knebworth station, which is 2.2 kilometres away.
- Knebworth|2.2 km away
- Welwyn North|2.7 km away
- Watton-at-Stone|4.7 km away
- Welwyn Garden City|5.3 km away
