The middle Slough home sold for £390,000 in the year to June, and prices fell 4.4%, the steepest drop of any neighbour. Figures by ward, property type and street.
Slough is the only council in its corner of the country where house prices are falling at any speed. The borough average was £329,713 in May 2026, down 4.4% over the year, while Buckinghamshire next door rose 2.8%, Windsor and Maidenhead held flat and England as a whole rose 2.3%.
Two official numbers are used on this page and they answer different questions. The £329,713 comes from the UK House Price Index, a mix-adjusted monthly model of the whole housing stock, and it is the right figure for direction of travel. The £390,000 below is the median of every completed residential sale the Land Registry recorded inside Slough over the twelve months to 30 June 2026, and it is the right figure for what things actually change hands at. On that basis 903 homes sold in the borough over the year.
Slough sells cheap inside its own postcodes
SL1, SL2 and SL3 do not stop at the borough boundary. All three spill into Buckinghamshire, and SL3 into Windsor and Maidenhead as well. Matching every sale to its actual council area shows how much of a “Slough” postal address is not Slough at all, and what the difference is worth.
| Council area | Median sale | Sales counted |
|---|---|---|
| Buckinghamshire (Burnham, Farnham Royal, Stoke Poges) | £632,500 | 238 |
| Windsor and Maidenhead (Datchet and district) | £440,000 | 53 |
| Slough | £390,000 | 903 |
A house on the Buckinghamshire side of the same postcode sold for £242,500 more than the middle Slough house. That gap, not the borough’s internal spread, is the biggest single number in Slough’s housing market.
What each part of Slough paid
| Ward | Median sale | Sales |
|---|---|---|
| Upton | £524,500 | 46 |
| Langley St Mary's | £505,000 | 31 |
| Langley Marish | £430,000 | 46 |
| Upton Lea | £430,000 | 24 |
| Manor Park & Stoke | £425,000 | 25 |
| Langley Meads | £425,000 | 60 |
| Cippenham Village | £418,000 | 55 |
| Cippenham Green | £411,000 | 62 |
| Haymill | £400,000 | 73 |
| Britwell | £399,975 | 48 |
| Northborough & Lynch Hill Valley | £396,250 | 40 |
| Wexham Court | £392,500 | 32 |
| Baylis & Salt Hill | £391,000 | 27 |
| Langley Foxborough | £390,000 | 47 |
| Colnbrook & Poyle | £388,500 | 44 |
| Elliman | £375,000 | 26 |
| Chalvey | £350,000 | 24 |
| Farnham | £340,000 | 49 |
| Cippenham Manor | £333,500 | 56 |
| Herschel Park | £305,000 | 52 |
| Slough Central | £250,000 | 36 |
The pattern is geographic and it is simple. Upton and the Langley wards east of the town hold the borough’s detached and larger semi-detached stock and sit £100,000 or more above the middle. Slough Central and Herschel Park, the two wards closest to the station and the shopping streets, sell flats, and sit £85,000 to £140,000 below it. Everything else in Slough clusters within about £60,000 of £390,000, which is unusually tight for a borough of this size.
By postcode district the same thing shows up more bluntly: SL3 £430,000, SL2 £395,000, SL1 £370,000.
Slough by property type
| Property type | Median | Sales |
|---|---|---|
| Detached | £607,500 | 80 |
| Semi-detached | £456,750 | 248 |
| Terraced | £400,000 | 305 |
| Flat or maisonette | £210,000 | 270 |
Only 80 detached houses sold in the whole borough over twelve months, against 270 flats. That ratio is the thing that shapes everything else here. It is also what the council’s own Local Plan scoping document is complaining about when it says the proportion of family homes built has been small and that Slough has some of the highest levels of overcrowding in the country. Details of what is being approved instead are on Slough planning news.
On the House Price Index, which measures the whole stock rather than what sold, the Slough flat average was £214,462 in May 2026, down 7.8% over the year, the worst of the four property types. Detached fell 4.0%, terraced 2.9% and semi-detached 2.5%. Nothing in Slough went up.
Which way the market is going
| Area | Average price | Change over 12 months |
|---|---|---|
| Windsor and Maidenhead | £584,743 | +0.2% |
| Wokingham | £495,261 | −3.0% |
| Buckinghamshire | £485,824 | +2.8% |
| Hillingdon | £467,887 | −0.7% |
| 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% |
Slough is bottom of that table on both counts: the cheapest average price of the lot, and the sharpest fall. The index number makes the point more starkly than the percentage does. With 2023 set at 100, Slough reads 96.2. Buckinghamshire reads 103.0, England 102.2. Three years on from the base, Slough has not got back to where it started, and the month of May on its own was down 2.7%.
Streets, where there were enough sales to say
A street median from six or seven sales is a rough guide, not a valuation. These are the Slough streets with at least six completed sales in the twelve months.
| Street | Median sale | Sales |
|---|---|---|
| Hurworth Avenue | £514,000 | 7 |
| Reddington Drive | £430,000 | 6 |
| Trelawney Avenue | £412,500 | 6 |
| Walpole Road | £405,000 | 7 |
| Bower Way | £365,000 | 8 |
| Windsor Road | £302,500 | 8 |
| London Road | £295,000 | 7 |
| Maplin Park | £272,500 | 8 |
| Bath Road | £265,000 | 11 |
| Mead Avenue | £256,000 | 6 |
| Lowestoft Drive | £215,000 | 9 |
| High Street | £200,000 | 21 |
| Farnham Road | £143,000 | 6 |
High Street was the busiest address in the borough, with 21 sales at a median of £200,000, because what sells on the High Street is flats above and behind the shops. Farnham Road, at £143,000 from six sales, is the same effect at the bottom of the range, and the A355 there is currently a building site: see Slough roadworks and travel.
At the top and bottom of the whole year’s record, the dearest ordinary house sale was £1,275,000 on Upton Court Road in the Upton ward. One larger figure appears, £3,000,000 for a property on Colndale Road in Colnbrook, but Colndale Road is an industrial estate address and it reads as a commercial building filed under a residential property type rather than a house. The cheapest recorded sales were flats at £100,000, on Nixey Close near the town centre and on London Road in Langley Marish.
You can check any individual address free on the HM Land Registry price paid search.
Buyers, sellers and the step up
The House Price Index splits by buyer as well. A first-time buyer in Slough paid an average of £298,546 in May 2026. Someone selling one home here to buy another paid £413,893. The step of £115,347 is the smallest in this part of the country, and it is small for an unhappy reason: Slough’s ladder is short because the rungs above the flat are missing. Only 80 detached houses sold all year.
If you are buying in Slough, the cheapest way in is a flat in Slough Central or Herschel Park, where the ward medians are £250,000 and £305,000, and the borough flat median is £210,000. Before you commit, look at what is coming: the Queensmere site alone has outline permission for up to 1,600 homes, almost all of them flats, on Slough planning news.
If you want a house rather than a flat, the money is in Upton, Upton Lea and the Langley wards, and the price of that is roughly £100,000 to £135,000 above the borough middle.
If you are selling, you are selling into the weakest market of any council around you: down 4.4% over the year, down 2.7% in the month, and still below the 2023 index base.
Frequently asked questions
What is the average house price in Slough?
The middle completed sale inside the borough was £390,000 over the twelve months to 30 June 2026, from 903 recorded sales (HM Land Registry Price Paid). The modelled borough average on the UK House Price Index was £329,713 in May 2026. The index is lower because it models the whole housing stock, most of which is flats and terraces, rather than the mix that happened to sell.
Are Slough house prices going up or down?
Down. Prices fell 4.4% in the year to May 2026 and 2.7% in the month alone. Every neighbouring council did better: Buckinghamshire rose 2.8%, Bracknell Forest 0.5% and Windsor and Maidenhead 0.2%, while Reading fell 2.4% and Wokingham 3.0%.
Where is the cheapest place to buy in Slough?
Slough Central, the ward around the station and shopping streets, at a median of £250,000 from 36 sales, then Herschel Park at £305,000 and Cippenham Manor at £333,500. All three sell mostly flats.
Where is the most expensive part of Slough?
Upton, at a median of £524,500 from 46 sales, followed by Langley St Mary’s at £505,000. Both hold the borough’s detached stock.
How much is a flat in Slough?
The median flat or maisonette sold for £210,000 over the twelve months. On the House Price Index the Slough flat average was £214,462 in May 2026, down 7.8% over the year, the steepest fall of any property type in the borough.
Is a Slough postcode always in Slough?
No. SL1 and SL2 are shared with Buckinghamshire and SL3 with both Buckinghamshire and Windsor and Maidenhead. Of the 1,194 home sales recorded in those postcodes over the year, 903 were in Slough, 238 in Buckinghamshire and 53 in Windsor and Maidenhead, and the Buckinghamshire ones had a median of £632,500.
Sources
- UK House Price Index, Slough (ONS / HM Land Registry) for the borough average, property-type and buyer-type figures and the annual and monthly changes.
- Land Registry UK HPI open data, Slough, May 2026 and the matching records for Buckinghamshire, Windsor and Maidenhead, Hillingdon, Reading, Wokingham, Bracknell Forest, the South East and England for the comparison table.
- HM Land Registry Price Paid linked data for the ward, council-area, property-type and street medians, being every completed residential sale recorded in the SL1, SL2 and SL3 postcode districts between 1 July 2025 and 30 June 2026, with each postcode matched to its council area and ward through the postcodes.io lookup so that only Slough sales are counted as Slough.
- HM Land Registry price paid search to check any individual address.
Land Registry figures are provisional and are revised as more sales complete, and the index runs two to three months behind. Confirm the latest numbers against the linked sources before making a decision. What is being built near you is on Slough planning news; what the commute costs is on Slough trains to London.
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