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Postcode District

SL4

WINDSOR

Berkshire, South East, England

SL4 is the postcode district for WINDSOR, located in Berkshire, South East.

Avg price £577,541
1yr change ▼ 10.3%
Crime 24% below avg
Schools 0 Outstanding
Updated 2026-03
Average House Price

£577,541

▼ 10.3% vs last year

This area National avg £287K

101% above national avg

Crime Rate

61.6/1,000

▼ 8.0% vs previous year

This area National avg 81.3/1,000

24% below national avg

Schools (Ofsted)

30 schools

Broadband Speed

72 Mbps

Property Prices in SL4

Source: HM Land Registry Price Paid Data

The average property price in SL4 is £577,541, which is 8% above the Berkshire average of £535,339.

Properties in SL4 cost 101.2% more than the England and Wales average of £287,000.

House prices in SL4 have fallen 10.3% over the past 12 months and risen 0.0% over five years.

Average Price by Property Type

Type Average Price Sales (12m)
Detached £768,313 24
Semi-detached £620,250 40
Terraced £585,758 60
Flat £398,315 0
All types £577,541 170

5-Year Price History

£522K £537K £552K £567K £582K 2025 2026

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Crime & Safety in SL4

Source: data.police.uk (rolling 12 months)

With 61.6 recorded crimes per 1,000 residents, SL4 has a crime rate well 24% below the national average of 81.3 per 1,000.

Crime by Type vs National Average

Violent crime
16.6 per 1,000 (avg: 22.1 per 1,000)
Burglary
4.0 per 1,000 (avg: 6.8 per 1,000)
Vehicle crime
6.2 per 1,000 (avg: 8.4 per 1,000)
Antisocial behaviour
13.6 per 1,000 (avg: 16.2 per 1,000)
Other theft
9.9 per 1,000 (avg: 9.5 per 1,000)
This area
National average

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Schools in SL4

Source: DfE Get Information About Schools / Ofsted

SL4 has 30 schools within or near its boundaries, including 0 rated Good by Ofsted.

Nearest Schools

School Type Ofsted Distance
The Lawns Nursery School Primary Not yet inspected 0 mi
King's Court First School Primary Not yet inspected 0 mi
Hilltop First School Primary Not yet inspected 0 mi
Cranbourne Primary School Primary Not yet inspected 0 mi
Homer First School and Nursery Primary Not yet inspected 0 mi

0

Outstanding

0

Good

0

Requires improvement

0

Inadequate

Demographics

Source: ONS Census 2021

18,857

Population

43

Median Age

65%

Owner-Occupied

76%

Economically Active

Tenure Type

Owner-occupied
65.0%
Private rent
22.0%
Social rent
13.0%

Broadband & Connectivity

Source: Ofcom Connected Nations

Average broadband download speeds in SL4 are 72.0 Mbps, with 81% of premises having access to superfast broadband and 35% with full fibre (FTTP) connectivity.

72.0 Mbps

Avg Download

18.0 Mbps

Avg Upload

81%

Superfast Coverage

42%

Ultrafast Coverage

35%

Full Fibre (FTTP)

Council Tax

Source: Valuation Office Agency

Council tax in SL4 is collected by Slough Council. The Band D rate is £2,370/year.

Band A
8.0%
Band B
14.0%
Band C
25.0%
Band D
22.0%
Band E
16.0%
Band F
9.0%
Band G
5.0%
Band H
1.0%

Area Summary

SL

SL4 — WINDSOR

Area Summary

SL4 (WINDSOR) offers above-average property prices (£577,541, 101% above national average), low crime (24% below national average), 30 nearby schools, and good broadband connectivity (72 Mbps average).

Prices

Above avg

Safety

Low crime

Schools

Weak

Broadband

Good

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