The average Windsor and Maidenhead home was £584,743 in May 2026, up 0.2% after a 4.4% year. Median sale by post town, type and postcode sector.
The average home in Windsor and Maidenhead sold for £584,743 in May 2026, and the striking part is how little that has moved. A year earlier the same measure was £583,785 and rising at 4.4 per cent a year. Growth has since fallen to 0.2 per cent, which after inflation is a fall.
These are completed sales recorded by HM Land Registry, not asking prices, from the UK House Price Index for the Royal Borough of Windsor and Maidenhead. The borough is a unitary authority, so one figure covers Windsor, Maidenhead, Ascot, Eton, Datchet, Old Windsor, Cookham, Bray, Sunningdale, Sunninghill, Wraysbury and the Walthams.
The headline, and the stall
| Measure | May 2025 | May 2026 |
|---|---|---|
| Average price | £583,785 | £584,743 |
| Annual change | +4.4% | +0.2% |
| Flats and maisonettes | +2.2% | −1.9% |
Twelve months of growth added £958 to the average borough home. The monthly figure is livelier, at plus 1.6 per cent in the single month to May 2026, so the year does not look like a slow decline so much as a long flat stretch with a spring uptick at the end.
Prices by property type
| Property type | Average price | Annual change |
|---|---|---|
| Detached | £1,139,163 | +0.1% |
| Semi-detached | £612,922 | +1.9% |
| Terraced | £488,632 | +0.9% |
| Flat or maisonette | £311,659 | −1.9% |
The Royal Borough is one of a small number of English districts where the average detached house has passed £1.1 million. It is also one where the semi-detached average, £612,922, sits above the all-property average, because the borough has enough flats to drag the middle down.
Flats are the only category falling, down 1.9 per cent after a 2.2 per cent rise the year before. That is the same pattern across the Thames Valley: houses with gardens have held demand, the flat market has not.
First-time buyers and movers
A first-time buyer in the borough paid an average of £435,937 in May 2026, which is 0.1 per cent less than a year earlier. A home mover, someone selling one property to buy another, paid £727,000, up 0.5 per cent.
The £291,063 between those two is the real cost of the step from a first flat to a family house here. Buyers paying cash averaged £601,490 and buyers with a mortgage £580,036, a gap of only £21,454, which is unusually narrow for an expensive district.
What actually sold, street by street
The index is a modelled average. The raw record is more useful when you are trying to price a specific house, so we pulled every completed sale HM Land Registry has recorded in the borough for the year to 30 June 2026: 1,683 sales.
The median was £520,000. The mean was £747,995. That £227,995 gap is almost entirely Ascot, where a handful of sales in the SL5 0 sector run into the millions and pull the average up without telling you anything about a normal house.
| Post town | Sales | Median |
|---|---|---|
| Ascot (SL5) | 213 | £650,000 |
| Maidenhead (SL6) | 870 | £501,250 |
| Windsor (SL4) | 470 | £500,000 |
Windsor and Maidenhead are within £1,250 of each other on the median. That surprises people who assume the castle carries a premium over the town up the road, and it does not, at least not at the middle of the market. Ascot is £150,000 clear of both.
By postcode sector
The spread inside the borough is far wider than the spread between its two main towns.
| Sector | Roughly | Sales | Median |
|---|---|---|---|
| SL5 7 | Sunninghill and south Ascot | 59 | £765,000 |
| SL5 9 | Ascot and Cheapside | 78 | £683,750 |
| SL6 9 | Cookham and the river villages | 56 | £664,000 |
| SL5 0 | Sunningdale | 59 | £615,000 |
| SL4 1 | Windsor town centre | 47 | £575,000 |
| SL4 2 | Clewer and Windsor west | 63 | £573,000 |
| SL6 8 | Maidenhead north and Furze Platt | 121 | £508,000 |
| SL4 5 | Old Windsor and Datchet side | 103 | £505,000 |
| SL6 4 | Maidenhead west and Pinkneys Green | 72 | £450,000 |
| SL6 7 | Maidenhead south and Cox Green | 113 | £417,000 |
| SL4 3 | Dedworth | 127 | £412,000 |
| SL6 1 | Maidenhead town centre | 104 | £395,500 |
The gap between the dearest sector and the cheapest is £369,500, on a borough whose two ends are eleven miles apart. SL6 1, the Maidenhead town centre postcode where most of the new flats have gone up, is the cheapest place to buy in the borough by some distance. SL4 3, Dedworth, is the cheapest part of Windsor.
By type, town by town
| Type | Windsor | Maidenhead | Ascot |
|---|---|---|---|
| Detached | £774,975 | £818,500 | £1,206,250 |
| Semi-detached | £574,000 | £530,089 | £565,250 |
| Terraced | £500,000 | £455,000 | £500,000 |
| Flat | £295,000 | £290,000 | £397,500 |
Windsor beats Maidenhead on semis and terraces; Maidenhead beats Windsor on detached houses, because its detached stock is concentrated in Pinkneys Green, Cookham and the rural west rather than the town. Ascot flats cost £100,000 more than Windsor flats.
New builds sold at a median of £642,500 across the borough, against £520,000 for existing homes, but on only 34 recorded sales in the year, so treat that as a description of what was being built rather than a premium you can rely on.
How the borough compares
| Area | Average price | Annual change |
|---|---|---|
| Windsor and Maidenhead | £584,743 | +0.2% |
| Wokingham | £495,261 | −3.0% |
| Buckinghamshire | £485,824 | +2.8% |
| Runnymede | £482,170 | +2.0% |
| Bracknell Forest | £401,886 | +0.5% |
| South East | £381,311 | +1.2% |
| Reading | £351,267 | −2.4% |
| Slough | £329,713 | −4.4% |
| England | £292,095 | +2.3% |
Windsor and Maidenhead is the most expensive district in Berkshire, £89,482 above Wokingham and £255,030 above Slough next door, and it costs twice the England average. It is not, however, growing. Buckinghamshire over the river is adding value three times faster.
What holds the premium up is a short list: the castle and the Great Park, the Green Belt that covers most of the borough and stops the towns joining up, two rail routes into London, and school catchments people move for. What is capping it is the same thing capping the rest of the outer Thames Valley, which is that at £584,743 the mortgage arithmetic only works for a narrow slice of buyers.
Frequently asked questions
What is the average house price in Windsor?
£584,743 in May 2026 across the Royal Borough of Windsor and Maidenhead, on the provisional UK House Price Index. On raw completed sales for the year to 30 June 2026, the median in the Windsor post town alone was £500,000.
Are Windsor house prices going up or down?
Essentially flat. Prices rose 0.2 per cent in the year to May 2026, against 4.4 per cent the year before. Flats fell 1.9 per cent.
Is Maidenhead cheaper than Windsor?
Barely. The median sale was £501,250 in Maidenhead and £500,000 in Windsor over the year to June 2026. The difference is inside the noise. Maidenhead detached houses are actually dearer than Windsor ones.
Where is the cheapest place to buy in the borough?
SL6 1, central Maidenhead, at a median of £395,500, followed by SL4 3, Dedworth, at £412,000. Both are flat-heavy postcodes.
How much is a detached house in Windsor and Maidenhead?
The index average is £1,139,163. On actual sales the median detached house went for £774,975 in Windsor, £818,500 in Maidenhead and £1,206,250 in Ascot.
What does a first-time buyer pay here?
An average of £435,937 in May 2026, which is roughly £54,000 more than the average price of any home across the South East.
Where can I check what a specific house sold for?
Every completed sale in England and Wales is public. Search an address or a street free on HM Land Registry Price Paid.
Sources
- UK House Price Index, Windsor and Maidenhead (ONS and HM Land Registry) for district averages by property type and buyer type.
- HM Land Registry UKHPI open data for Windsor and Maidenhead, neighbouring districts, the South East and England, May 2025 and May 2026, via the Land Registry open data service.
- HM Land Registry Price Paid Data, all 1,683 recorded sales in the Windsor and Maidenhead district, 1 July 2025 to 30 June 2026, queried 10 August 2026.
- HM Land Registry Price Paid search for individual addresses.
UK House Price Index figures are provisional and revised as more sales complete. Price Paid data lags completion by up to two months, so the most recent weeks are incomplete. Confirm against the linked sources before making a decision.
Buying here usually means commuting. Windsor train times to London has the journey times, the fares and the £3,756 season ticket that comes with an SL4 postcode.
Have your say
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