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Kinsbourne Green market report AL5 1, Harpenden
The standing AL5 1 (Kinsbourne Green) property market report, rebuilt from the full public record every month. This page is built from the public record and nothing else: 3,863 completed sales registered with HM Land Registry in AL5 1 (Harpenden) since 1995, plus current ONS rental figures. There are no valuations, estimates or asking prices in it.
Covers registered sales to 2026 and ONS rents for May 2026. Refreshed monthly as new sales reach the register.
In short: 33 registered 2026 sales put the AL5 1 (Harpenden) median at £740,000, up 12% on five years earlier, with a mean of £849,700, and by floor area homes here have averaged about £6,870 per square metre over the last five years. Everything rests on 3,863 completed HM Land Registry sales since 1995, refreshed monthly; valuations and asking prices play no part.
A postcode sector like AL5 1 is a single group of streets within AL5 (Harpenden), the finest slice the public record supports. Fewer sales stand behind each figure than at district level, so the lines jump about more.
Where AL5 1 sits
Shaded by median price on the same scale as the average prices map. Click any shape to open it on the live map with every sale plotted at its address, or zoom in past street level to see the sold homes right here.
What a home in AL5 1 sells for
Across 33 registered 2026 sales, the typical (median) AL5 1 home went for £740,000. The mean is £849,700, somewhat above it, as happens wherever a market carries an expensive tail.
AL5 1 prices by floor area
The last five years of sales put AL5 1 at roughly £6,870 per square metre. That figure, built from each sale's Energy Performance Certificate floor area, is the one that makes a small flat and a big house comparable.
England and Wales as a whole trade at a £285,000 median, leaving AL5 1 160% above the national figure.
A typical AL5 1 home, priced year by year (1995 to 2026)
Year by year: the median as it was recorded, and the same figure brought into today's money with ONS CPIH, which is where "did homes get dearer" actually gets answered. Hover shows each year; the legend isolates a series.
See this chart as a table
| Year | Median (cash) | Median (today's £) | Sales |
|---|---|---|---|
| 2026 | £740,000 | £740,000 | 33 |
| 2025 | £692,500 | £709,060 | 89 |
| 2024 | £697,500 | £741,586 | 96 |
| 2023 | £700,000 | £769,129 | 96 |
| 2022 | £697,500 | £817,898 | 110 |
| 2021 | £660,000 | £835,645 | 154 |
| 2020 | £677,500 | £879,070 | 98 |
| 2019 | £610,000 | £799,564 | 106 |
| 2018 | £572,500 | £763,153 | 124 |
| 2017 | £552,500 | £753,555 | 108 |
| 2016 | £550,000 | £769,455 | 126 |
| 2015 | £546,800 | £772,628 | 104 |
| 2014 | £481,200 | £682,666 | 114 |
| 2013 | £412,000 | £592,827 | 107 |
| 2012 | £390,000 | £574,031 | 109 |
| 2011 | £381,000 | £575,163 | 105 |
| 2010 | £395,000 | £619,462 | 127 |
| 2009 | £312,500 | £502,346 | 91 |
| 2008 | £345,000 | £565,528 | 75 |
| 2007 | £351,000 | £595,394 | 142 |
| 2006 | £296,000 | £513,818 | 196 |
| 2005 | £287,000 | £510,744 | 143 |
| 2004 | £290,000 | £526,697 | 119 |
| 2003 | £250,000 | £460,561 | 170 |
| 2002 | £225,500 | £424,276 | 150 |
| 2001 | £206,000 | £396,024 | 170 |
| 2000 | £180,000 | £353,250 | 140 |
| 1999 | £156,200 | £311,298 | 148 |
| 1998 | £145,000 | £292,693 | 119 |
| 1997 | £129,000 | £264,553 | 139 |
| 1996 | £110,000 | £231,985 | 157 |
| 1995 | £106,500 | £231,515 | 98 |
In cash terms the typical AL5 1 home went from £106,500 in 1995 to £740,000 in 2026, roughly 7 times the price. Inflation explains only part of it: in today's money the rise is still about 220%, a genuine increase in what a home here costs. The real-terms peak came in 2020, and today's median remains roughly 16% under it: a 2020 buyer is still waiting to get that price back in today's money.
Year-on-year change in the AL5 1 median
Each bar is the change on the year before, in cash. The zero line is the boundary between rising and falling.
The strongest year on record here is 2010 (+26.4% on the year before); the weakest, 2009 (−9.4%). Single-year swings like these are why the annualised table below matters more than any one year's headline.
What AL5 1 has returned, per year
| Period | Cash, per year | Real terms, per year |
|---|---|---|
| 1 years (since 2025) | +6.9% | +4.4% |
| 5 years (since 2021) | +2.3% | −2.4% |
| 10 years (since 2016) | +3.0% | −0.4% |
| 20 years (since 2006) | +4.7% | +1.8% |
The table annualises median growth over each period, with the real column deflated by ONS CPIH. Smoothing hides the cycle (see the chart above for it), and none of this forecasts: it is the record.
Sales activity in AL5 1
How many homes change hands
Each bar is a year's recorded sales. 2008's dip is the financial crisis, and the newest bar always grows for a while as late registrations arrive.
Over the last twelve months of data, 33 sales completed in AL5 1. Like most of England and Wales, turnover never fully recovered from 2008: the market here averaged 154 sales a year before the financial crisis and 85 a year over the last five. Price without volume misleads: a median built on few sales jumps around, and one street can tilt it. Keep in mind too that the latest year is still filling in, since sales reach the register weeks or months after completion.
Rents around AL5 1
For renting purposes AL5 1 sits in St Albans. The ONS average private rent there is £1,925 a month (May 2026). A one-bed averages £1,266 a month here and a four-or-more-bed £2,897, so size does most of the work in setting the rent.
Average monthly rent by size, St Albans
ONS Price Index of Private Rents, May 2026.
Set against the £740,000 median sold price, £1,925 a month is £23,100 a year, a gross yield of 3.1%: gross, before letting costs, voids, maintenance and tax, so a ceiling rather than a promise. Rents are published at local-authority level, so nearby districts in the same authority share these figures.
The shape of the AL5 1 market
This is a thin market: 33 sales in the last twelve months of data. With that few transactions, one street selling well (or one block of cheap transfers) can move the median, so read the year lines as a range rather than a verdict.
What people ask about AL5 1 (Kinsbourne Green)
Is AL5 1 (Kinsbourne Green) a good place to buy a house?
How much did a house sell for in AL5 1 (Kinsbourne Green)?
Are property prices falling in AL5 1 (Kinsbourne Green)?
Where do AL5 1 prices go next?
Nobody can tell you that, and this page will not pretend to. What the record shows: the median is up 12% over five years in cash but down 11% after inflation. If you are weighing a purchase, read the volume chart alongside the price one, and remember that every figure here is a completed sale, lagged by the weeks it takes the Land Registry to register it.
What you could buy in AL5 now
Turning to what is actually available: 128 homes on the market right now, from 3 agents publishing to HomesIndex.
These cover the whole AL5 district, not just AL5 1: live asking prices are collected per district.
Of everything listed here, 31% asks less than the sold record of comparable homes. The comparison behind each listing uses recent recorded sales of similar homes close by.
The "under comparable sales" label measures each asking price against real nearby sales of similar homes: an opening position for a conversation rather than a valuation. The home itself still needs looking at.
See every AL5 home for sale on the map →
These asking prices come live from estate agents publishing feeds to HomesIndex, refreshed each Monday and Thursday. They are a sample of the market rather than its entirety, and an asking price is not a sale price.
Bedroom by bedroom: AL prices by size
Real sold prices by size across the AL area, straight from the Land Registry record. The jump between sizes is local: in some areas a third bedroom adds a quarter to the price, in others nearly four fifths, so a national rule of thumb will mislead you here.
| Type | 1 bed | 2 bed | 3 bed | 4 bed | 5 bed |
|---|---|---|---|---|---|
| Detached | — | £605,000 | £792,500 (+31%) | £1,160,000 (+46%) | £1,685,000 (+45%) |
| Semi-detached | £397,500 | £490,000 (+23%) | £640,000 (+31%) | £865,000 (+35%) | £1,150,000 (+33%) |
| Terraced | £375,000 | £440,000 (+17%) | £506,250 (+15%) | £739,000 (+46%) | £950,000 (+29%) |
| Flat | £250,000 | £335,000 (+34%) | £552,500 (+65%) | — | — |
Medians of recorded sales over the last four years, by built form and bedroom count. Sold homes carry no advertised bedroom count, so sizes are estimated from their EPC records; a small number of homes will sit one size out. Sizes with too few homes to be meaningful are left blank.
The risers and the fallers
The spread across the AL area is the point: the same five years treated these districts very differently.
AL area districts: five years of change
Cash-terms risers and fallers across the area; click any row for that district's full report.
Other sectors in AL5
Prices can differ sharply between two sectors a few minutes' walk apart. The rest of AL5, each linking to its own report:
| Sector | Median (latest) | Sales that year |
|---|---|---|
| AL5 2 | £1,241,200 | 24 |
| AL5 3 | £860,000 | 15 |
| AL5 4 | £682,500 | 34 |
| AL5 5 | £625,000 | 39 |
Zoom out to the full AL5 district report for the type split, monthly volumes and how AL5 compares with its neighbours.
Before you sell in AL5 1: what the record supports
Start from what homes here actually sold for, not an estimate. Before booking a house valuation or flat valuation in AL5 1, use the average prices map for a rough value: zoom from AL5 1's shading down to the sold homes on your own street. The figures above are every recorded AL5 1 sale; agents price with this same Land Registry record, and now you have it too.
Estate agents working AL5 1: the featured spot on this report is free for founding agents, one per district. Claim AL5 1.
Dig further
The AI answers from the same Land Registry data this report is built on, already scoped to AL5 1. Free after a one click sign in.
The live map plots every individual AL5 1 sale at its exact address, and the average prices map zooms from neighbourhood shading to single homes. For a specific question, the report tool writes a custom answer, and any sale's mortgage and rent calculator runs the numbers on a real purchase.
About the numbers: everything is computed from HM Land Registry Price Paid Data (Crown copyright, OGL v3.0), geocoded to the address; today's-money figures use the ONS CPIH index, and rents are the ONS Price Index of Private Rents by local authority. These are medians of recorded sales, not valuations, and none of it is financial advice.