AL5 house prices and areas
AL5 covers Harpenden in London (Hertfordshire). Here is what homes actually sold for: every standard sale HM Land Registry recorded from January 2025 to September 2026.
Prices by property type
Medians are shown where there were at least 10 sales of that type.
247 sales
199 sales
121 sales
155 sales
Sales by year
| Year | Sales | Median |
|---|---|---|
| 2025 | 502 | £800,000 |
| 2026 (so far) | 220 | £765,000 |
A part-year and a small mix shift (say, more flats sold this year) can move a median without any change in what homes are worth, so treat year-to-year differences with care.
New builds and leasehold
1.4% of AL5 sales were new builds and 21.9% were leasehold. Most sales here were freehold, which usually means houses.
Areas in AL5
Nearby postcodes
Questions about AL5
What is the average house price in AL5?
The median sale price in AL5 was £794,325 across 722 recorded sales from January 2025 to September 2026 (HM Land Registry). Half of sales were between £530,000 and £1,250,000.
Which areas are in the AL5 postcode?
Boroughly's area guides in AL5 cover Harpenden. Postcode districts don't follow neighbourhood names exactly, so a street can sit in AL5 but feel part of a neighbouring area.
What type of property sells most in AL5?
Detached homes were the most common sale (247 of 722). Flats had the lowest median, at £340,000. 21.9% of sales were leasehold and 1.4% were new builds.