AL5 4SY is a residential postcode situated on Carlton Road, Harpenden, AL5 with 35 addresses.
It ranks as the 952nd largest and 132nd most expensive of the 997 postcodes in the AL5 area. The dominant property type is a modern flat built after 1980.
The postcode contains a total of 35 properties: 2 houses and 33 flats.
AL5 4SY is a residential postcode situated on Carlton Road, Harpenden, AL5 with 35 addresses.
It ranks as the 952nd largest and 132nd most expensive of the 997 postcodes in the AL5 area. The dominant property type is a modern flat built after 1980.
The postcode contains a total of 35 properties: 2 houses and 33 flats.
Sale prices range from £293,078 for 2 bedroom leasehold flats with a balcony (484 ft2) to £1,007,525 for 4 bedroom leasehold houses with a balcony and garden (1,313 ft2) .
Monthly rental prices range from £1,346 pcm for 2 bed flats to £3,078 pcm for 4 bed houses.
The gross rental yield is between 3.7% and 6.3%.
The average value per square foot is £482.
The last sale in AL5 4SY sold for £415,000 on 30th May 2025. Since then prices are up an average of 0.5%.
The current average value in the postcode is £434,145.
The AL5 4SY Sales Market has increased by 16.9% over the last 10 years.
| Period | Year on Year | Average Price |
|---|---|---|
| April 2026 | 1% | £434,145 |
| April 2025 | 2.8% | £429,925 |
| April 2024 | -2.9% | £418,027 |
| April 2023 | 0.3% | £430,672 |
| April 2022 | 6.6% | £429,243 |
| April 2021 | 4.4% | £402,787 |
| April 2020 | 3.4% | £385,951 |
| April 2019 | -1.7% | £373,427 |
| April 2018 | -0.5% | £380,018 |
| April 2017 | 2.9% | £382,035 |
| April 2016 | 8.3% | £371,386 |
| April 2015 | 7.3% | £342,852 |
| April 2014 | 9.8% | £319,610 |
| April 2013 | 4.1% | £291,024 |
| April 2012 | 5.5% | £279,630 |
| April 2011 | 3.4% | £265,064 |
| April 2010 | 16.6% | £256,366 |
| April 2009 | -14.2% | £219,839 |
| April 2008 | 2.4% | £256,118 |
| April 2007 | 0% | £250,224 |
The current average rental value in the postcode is £2,017.
The AL5 4SY Rental Market has increased by 42.1% over the last 10 years.
| Period | Year on Year | Average Price |
|---|---|---|
| April 2026 | 2.3% | £2,017pcm |
| April 2025 | 6.5% | £1,971pcm |
| April 2024 | 8.2% | £1,851pcm |
| April 2023 | 5.1% | £1,711pcm |
| April 2022 | 7% | £1,629pcm |
| April 2021 | 4.4% | £1,523pcm |
| April 2020 | 2% | £1,458pcm |
| April 2019 | 2.7% | £1,430pcm |
| April 2018 | -3.3% | £1,392pcm |
| April 2017 | 1.3% | £1,439pcm |
| April 2016 | 4.7% | £1,420pcm |
| April 2015 | 3.7% | £1,357pcm |
| April 2014 | 3.5% | £1,309pcm |
| April 2013 | 3.9% | £1,265pcm |
| April 2012 | 2.2% | £1,217pcm |
| April 2011 | 4.2% | £1,190pcm |
| April 2010 | 3% | £1,142pcm |
| April 2009 | -2.8% | £1,109pcm |
| April 2008 | 0.9% | £1,141pcm |
| April 2007 | 0% | £1,131pcm |
The last sale was on 30th May 2025 for £415,000 and since then the market in the area has increased by 0.5%. The postcode has had a total of 63 sales since 1995.
AL5 4SY has seen 2 sales in the last three years and no sales in the last twelve months.
AL5 4SY is the 952nd largest and the 132nd most expensive postcode out of the 997 postcodes in the AL5 area.
Be the first Estate
Agent here!
The closest station to AL5 4SY is Harpenden station which is 300 metres away.
Connect me with
an Estate Agent
Our partner Agents appear here!
Book a demo
Find an Estate
Agent