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Kinsbourne Green market report AL5 4, Harpenden
The standing AL5 4 (Kinsbourne Green) property market report, rebuilt from the full public record every month. This page is built from the public record and nothing else: 4,362 completed sales registered with HM Land Registry in AL5 4 (Harpenden) since 1995, plus current ONS rental figures. There are no valuations, estimates or asking prices in it.
Sales data to 2026. Rents: ONS, May 2026. Regenerated with every monthly data refresh.
In short: the typical home in AL5 4 (Harpenden) sold for £682,500 in 2026, the median of 34 registered sales, up 10% on five years earlier. The mean was £787,300, and by floor area homes here have averaged about £7,070 per square metre over the last five years. The figures cover 4,362 sales recorded by HM Land Registry since 1995 and refresh with each monthly release: completed sale prices, not valuations or asking prices.
A postcode sector like AL5 4 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 4 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.
AL5 4 sold prices: where the market stands
In the AL5 4 property market, the 2026 median sale price is £682,500, from 34 registered sales; the mean, the "average house price" most sites quote, is £787,300, sitting well above it, the signature of a heavy top tail: a handful of expensive sales lifting the average.
AL5 4 prices by floor area
By floor space, homes in AL5 4 have sold for about £7,070 per square metre on average over the last five years: the like-for-like measure that lets you compare a small flat with a large house, from the Energy Performance Certificate floor areas behind each sale.
Set against the £285,000 England and Wales median, AL5 4 sits 139% above the national market.
The price of a typical AL5 4 home, 1995 to 2026
The cash median beside its inflation-adjusted twin (ONS CPIH). The adjusted line answers the harder question, whether homes really got dearer. Hover for the figures; the legend toggles each series.
See this chart as a table
| Year | Median (cash) | Median (today's £) | Sales |
|---|---|---|---|
| 2026 | £682,500 | £682,500 | 34 |
| 2025 | £762,500 | £780,734 | 124 |
| 2024 | £600,000 | £637,923 | 115 |
| 2023 | £732,500 | £804,839 | 94 |
| 2022 | £720,000 | £844,282 | 121 |
| 2021 | £620,000 | £785,000 | 149 |
| 2020 | £602,500 | £781,756 | 110 |
| 2019 | £654,800 | £858,286 | 104 |
| 2018 | £682,500 | £909,785 | 84 |
| 2017 | £535,000 | £729,686 | 96 |
| 2016 | £550,000 | £769,455 | 108 |
| 2015 | £465,000 | £657,045 | 145 |
| 2014 | £497,500 | £705,791 | 150 |
| 2013 | £430,000 | £618,727 | 139 |
| 2012 | £329,600 | £485,130 | 96 |
| 2011 | £461,000 | £695,933 | 120 |
| 2010 | £450,000 | £705,716 | 133 |
| 2009 | £362,500 | £582,722 | 123 |
| 2008 | £285,000 | £467,175 | 128 |
| 2007 | £348,000 | £590,305 | 191 |
| 2006 | £316,500 | £549,404 | 168 |
| 2005 | £290,000 | £516,083 | 141 |
| 2004 | £255,000 | £463,130 | 161 |
| 2003 | £250,000 | £460,561 | 160 |
| 2002 | £232,000 | £436,506 | 190 |
| 2001 | £210,000 | £403,714 | 177 |
| 2000 | £157,500 | £309,094 | 130 |
| 1999 | £159,000 | £316,879 | 173 |
| 1998 | £125,000 | £252,321 | 158 |
| 1997 | £109,500 | £224,562 | 184 |
| 1996 | £104,000 | £219,331 | 195 |
| 1995 | £100,000 | £217,385 | 161 |
In cash terms the typical AL5 4 home went from £100,000 in 1995 to £682,500 in 2026, roughly 7 times the price. Inflation explains only part of it: in today's money the rise is still about 214%, a genuine increase in what a home here costs. Measured in today's money the market peaked in 2018; the current median sits about 25% below that. Someone who bought at the 2018 peak has not yet seen that price back in real terms.
Year-on-year change in the AL5 4 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 2001 (+33.3% on the year before); the weakest, 2012 (−28.5%). Single-year swings like these are why the annualised table below matters more than any one year's headline.
The long view: annualised growth
| Period | Cash, per year | Real terms, per year |
|---|---|---|
| 1 years (since 2025) | −10.5% | −12.6% |
| 5 years (since 2021) | +1.9% | −2.8% |
| 10 years (since 2016) | +2.2% | −1.2% |
| 20 years (since 2006) | +3.9% | +1.1% |
Compound annual growth of the median sold price; the real column deflates by ONS CPIH. Annualised figures smooth the cycle (the chart above shows the cycle), and past growth is a record, not a forecast.
The turnover behind the prices
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, 34 sales completed in AL5 4. Like most of England and Wales, turnover never fully recovered from 2008: the market here averaged 165 sales a year before the financial crisis and 98 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.
What tenants pay around AL5 4
For renting purposes AL5 4 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 £682,500 median sold price, £1,925 a month is £23,100 a year, a gross yield of 3.4%: 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 4 market
Only 34 sales completed here in the last twelve months of data, which makes AL5 4 a thin market. Each figure rests on few transactions, so single streets can swing the median and the charts deserve a sceptical squint. The record here is jumpy: year-on-year moves of ten per cent or more are common in the chart above, mostly a function of which homes happened to sell rather than the market lurching.
Common questions on AL5 4 (Kinsbourne Green)
How much did a house sell for in AL5 4 (Kinsbourne Green)?
Are property prices falling in AL5 4 (Kinsbourne Green)?
Is AL5 4 (Kinsbourne Green) a good place to buy a house?
What happens to AL5 4 prices now?
Nobody can tell you that, and this page will not pretend to. What the record shows: the median is up 10% over five years in cash but down 13% 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 is for sale in AL5 right now
This is what you could actually buy today: 128 homes currently on the market from 3 agents publishing to HomesIndex.
These cover the whole AL5 district, not just AL5 4: live asking prices are collected per district.
Of everything listed here, 31% asks less than the sold record of comparable homes. Each listing is compared with recent recorded sales of similar homes nearby.
"Under comparable sales" means the asking price sits below what similar homes nearby actually fetched. Treat it as the start of a conversation, never a valuation, and always view the home.
See every AL5 home for sale on the map →
Live asking prices from estate agents who publish a feed to HomesIndex, refreshed every Monday and Thursday: a sample of the market, not every home for sale. Asking prices are not sale prices.
Bedroom by bedroom: AL prices by size
The Land Registry record, split by size: what each kind of home actually sold for across the AL area. 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. Blank cells mean too few homes for the figure to mean anything.
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
The districts that gained and lost most in cash terms, each row linking through to its own report.
Other sectors in AL5
A few minutes' walk can separate two very different markets. Here are AL5's other sectors, each with its own report:
| Sector | Median (latest) | Sales that year |
|---|---|---|
| AL5 1 | £740,000 | 33 |
| AL5 2 | £1,241,200 | 24 |
| AL5 3 | £860,000 | 15 |
| 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 4: what the record supports
Ground the asking price in real sold prices first. The average prices map gives a rough value in a minute: start at AL5 4's shading and zoom to the sold homes on the street itself. Agents work from this same Land Registry record when they value; this page puts it in front of you before they arrive.
Estate agents working AL5 4: the featured spot on this report is free for founding agents, one per district. Claim AL5 4.
Keep digging
The AI answers from the same Land Registry data this report is built on, already scoped to AL5 4. Free after a one click sign in.
See every individual AL5 4 sale on the live map, mapped to the exact address, or zoom the average prices map from neighbourhood shading down to single homes. The report tool writes a custom answer to a specific question, and the mortgage and rent calculator on any sale 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.