UK Property Check

UK Property Check · Printed on 8 November 2026ukpropertycheck.co.uk/postcode/sl

House prices in the SL postcode area, Slough

Homes in the SL postcode area sold for a median of £507,500 between September 2024 and August 2026, from 7,815 standard sales.

That is 33% above the £383,000 median for the South East, where most of the area lies.

Median sale price£507,5007,815 standard sales
Middle half of prices£375,000 to £735,000
Change since 2016+27%Median, 2016 to 2025, before inflation

Prices by property type

Standard sales in the SL area, September 2024 to August 2026
TypeSalesMedian priceMiddle halfPer m²
Detached2,052£885,000£685,000 to £1,250,000£5,852/m²from 83 sales
Semi-detached1,928£550,000£465,000 to £670,000£5,541/m²from 63 sales
Terraced1,842£450,000£397,000 to £532,000£5,918/m²from 46 sales
Flats and maisonettes1,993£292,000£235,000 to £367,000£4,286/m²from 55 sales

Detached houses and flats and maisonettes sold in similar numbers in the SL area, at 26% and 26% of sales.

952 sales in the SL area, or 12%, were for £1 million or more, against 3% across England and Wales.

Measured by floor area, homes in the SL area sold for a median of £5,526 per m², 26% above the £4,375 across the South East as a whole.

Districts ranked by median price

The dearest district was SL9 (Gerrards Cross), at £847,500, and the cheapest was SL1 (Slough), at £395,000. The dearest median is 2.1 times the cheapest.

The next dearest were SL7 (Marlow) and SL5 (Ascot), and the next cheapest SL2 (Slough) and SL3 (Slough).

Map loading

Each dot is a postcode district in the SL area, placed at the centre of its postcodes and shaded by the median price of its standard sales, September 2024 to August 2026. The ranked list below gives the same figures.

Post towns in the SL area, by number of sales: Slough (SL1, SL2, SL3), Maidenhead (SL6), Windsor (SL4), Ascot (SL5), Gerrards Cross (SL9), Marlow (SL7), Iver (SL0), Bourne End (SL8).

Districts with at least 100 standard sales, September 2024 to August 2026
  1. SL9Gerrards Cross, 536 sales£847,500£5,784+6%
  2. SL7Marlow, 535 sales£675,000Too few−4%
  3. SL5Ascot, 726 sales£637,500£5,465−7%
  4. SL8Bourne End, 232 sales£565,000Too fewToo few
  5. SL0Iver, 286 sales£545,000Too few+6%
  6. SL6Maidenhead, 2,102 sales£510,000£5,484+6%
  7. SL4Windsor, 1,007 sales£507,500£5,369+3%
  8. SL3Slough, 679 sales£450,000Too few+1%
  9. SL2Slough, 695 sales£425,000£5,232+5%
  10. SL1Slough, 1,017 sales£395,000£4,921+5%

1-year change: 2025 against 2024, where both years had 100 or more standard sales. It moves with which homes sold, so treat it as a guide, not a price index.

From 2024 to 2025, the median rose most in SL0 (Iver), SL6 (Maidenhead) and SL9 (Gerrards Cross), up 6%, and fell most in SL5 (Ascot), down 7%.

Streets with the most standard sales, September 2024 to August 2026:

Of the streets with at least 10 sales, the dearest by median price were Scholars Row, Ascot (SL5, flats, £1,340,000), East Common, Gerrards Cross (SL9, flats, £1,322,500) and Charters Road, Ascot (SL5, flats, £1,212,500).

The cheapest were Bath Road, Slough (SL1, £184,000), Alma Road, Windsor (SL4, flats, £187,500) and Upton Park, Slough (SL1, flats, £188,000).

Neighbouring postcode areas include HP (Hemel Hempstead), UB (Southall), GU (Guildford), RG (Reading) and TW (Twickenham).

Prices over time

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
Yearly median of standard sales, not adjusted for inflation. 2026 covers January to August only, and the ringed bar, 2025, is the latest full year.

The median rose 27%, from £400,000 in 2016 to £510,000 in 2025, less than the 35% rise across England and Wales.

Council areas in the SL postcode area

Within SL, the median ran from £395,000 in Slough to £630,000 in Buckinghamshire, counting council areas with at least 100 sales in the area (how postcode areas and council areas overlap).

Standard sales in the SL area by council area, placed by postcode, September 2024 to August 2026
Council areaSales in SLMedian in SLWhole council area
Windsor and Maidenhead3,540£530,000£535,000
Buckinghamshire2,286£630,000£460,000
Slough1,759£395,000£395,000
Bracknell Forest224£544,000£420,000
2 other council areas6Too fewNot shown

About these figures

The SL figures come from 7,815 standard sales in 10 postcode districts across 6 council areas (how sales are placed). The busiest district was SL6 (Maidenhead), with 2,102 sales.

Updated 15 October 2026 with sales recorded to August 2026. Next update due in late November 2026.

Download these figures (CSV)

Contains HM Land Registry data © Crown copyright and database right 2026. Energy certificate data from the Ministry of Housing, Communities and Local Government. Both are licensed under the Open Government Licence v3.0.