SL4 1NG Windsor and Maidenhead
Live postcode, introduced January 1980. Ward: Eton & Castle. Region: South East.
Streets
- St Alban's Street, Windsor: 30 addresses
- Castle Hill, Windsor: 6 addresses
- The Long Walk, Windsor and Maidenhead: 1 address
Council tax
What each band costs in Windsor and Maidenhead in 2026-27: Band D £1,953 a year on average, including the police, fire and any county and parish charges.
| A | B | C | D | E | F | G | H |
|---|---|---|---|---|---|---|---|
| £1,302 | £1,519 | £1,736 | £1,953 | £2,387 | £2,820 | £3,254 | £3,905 |
Homes by band in the neighbourhood around this postcode: most are in band C (22% of about 1,080 homes).
Planning and heritage
- Conservation area: no postcode centre in this postcode is in one.
- Listed buildings within 100 m of this postcode: 30.
- Article 4 direction (removing permitted development rights): none recorded, though not every council has published theirs.
- Tree preservation orders: none recorded, though not every council has published theirs.
- Green belt: no.
Listed buildings
- 12-16, PARK STREET, grade II*
- 20, PARK STREET, grade II*
- 5 AND 6, CHURCH STREET, grade II*
- Church of St John the Baptist, grade II*
- CHURCH ROOMS, grade II*
- 1 and 2, High Street, grade II
- 10, High Street, grade II
- 11, High Street, grade II
- 21 AND 22, PARK STREET, grade II
- 23 AND 24, PARK STREET, grade II
- 3 High Street, grade II
- 4, CHURCH STREET, grade II
- 4, HIGH STREET, grade II
- 4A and 5, High Street, grade II
- 55, High Street, grade II
- 6 and 7, High Street, grade II
- 7, CHURCH STREET, grade II
- 8, High Street, grade II
- 9 and 9a, High Street, grade II
- BURFORD HOUSE, grade II
- CASTLE GRILL, grade II
- K6 Telephone Kiosk, grade II
- MASONIC HALL, grade II
- NORTH LODGE AND GATES AND SCREEN WALL TO SOUTH, grade II
- RANGE OF BUILDINGS ON WEST SIDE OF DRIVE FROM NORTH END TO GATES, grade II
- RIDING SCHOOL WITH UPPER MIDDLE AND LOWER COURTS, grade II
- Royal Stables House, grade II
- SOUTH WEST GATE AND LODGE TO ST ALBANS STREET, grade II
- THE GARDEN HOUSE, grade II
- THE SHIP INN, grade II
Brownfield land registered for housing within 1 km (0.6 miles)
- Minton Place Victoria Street Windsor SL4 1EG (410 m (0.3 miles))
- Minton Place, Victoria Street, Windsor: up to 100 homes, not permissioned (420 m (0.3 miles))
- Windsor and Eton Riverside Station Car Park: up to 30 homes, not permissioned (560 m (0.3 miles))
- Windsor and Eton Riverside Station Car Park, REC (640 m (0.4 miles))
- Windsor Business Quarter, 67 Alma Road, Windsor: up to 315 homes, pending decision (1 km (0.6 miles))
Flood risk
No address in this postcode is in an area at high, medium or low risk of flooding from rivers, the sea or surface water. The rest are in areas at very low risk: less than a 0.1% (1 in 1,000) chance a year.
Rivers and the sea alone: no home is in an area at risk.
High: 3.3% (1 in 30) or more chance of flooding a year. Medium: 1% to 3.3%. Low: 0.1% to 1%. Very low: under 0.1%. The rivers and sea figures allow for flood defences. Counts cover whole postcodes, which can include other streets.
Flood zone for planning: no postcode centre is in flood zone 2 or 3.
Height above sea level
The postcode's 37 addresses are between 31 m and 45 m above sea level (36 m on average).
Broadband
Superfast 100%, ultrafast 0%, gigabit 0% of premises; 0% cannot get 10 Mbit/s. Ofcom Connected Nations, data as at January 2026.
Getting around
| Nearest | Distance | |
|---|---|---|
| Railway stations | Windsor and Eton Central 1.7 million journeys in 2024–25 | 400 m (0.2 miles) |
| Windsor and Eton Riverside 1.1 million journeys in 2024–25 | 460 m (0.3 miles) | |
| Datchet 228,000 journeys in 2024–25 | 1.8 km (1.1 miles) | |
| Bus stops | 9 stops within 400 m (0.2 miles), 24 within 800 m (0.5 miles); nearest Parish Church Windsor | 100 m |
| Bus or coach station | Brunel Way Slough Town Centre | 3.5 km (2.2 miles) |
| Car parks | 7 within 800 m (0.5 miles); nearest River Street Car Park | 420 m (0.3 miles) |
| EV charging points | 10 within 1.6 km (1 mile); nearest Shell Recharge Charging Station | 110 m |
| Airport with scheduled flights | London Heathrow Airport LHR | 10.2 km (6.3 miles) |
Local services
| Nearest | Distance | |
|---|---|---|
| GP surgeries | 4 practices within 1.6 km (1 mile); nearest Sheet Street Surgery | 220 m |
| Pharmacies | 4 pharmacies within 1.6 km (1 mile); nearest Superdrug Pharmacy | 290 m |
| NHS dentists | 9 practices within 1.6 km (1 mile); nearest 1 Farm Yard | 440 m (0.3 miles) |
| Hospital | Hrh Princess Christian's Hospital | 560 m (0.3 miles) |
| Police station | Thames Valley Police - Windsor Police Station | 900 m (0.6 miles) |
| Cash machines | 3 machines within 800 m (0.5 miles); nearest Snax 24 - Rushden | 680 m (0.4 miles) |
Parks and green space
| Nearest | Distance | |
|---|---|---|
| Park or garden | 4 within 800 m (0.5 miles); nearest Windsor Great Park 1,171 ha | 170 m |
| Play area | 2 within 800 m (0.5 miles); nearest Unnamed 640 m² | 240 m |
| Playing field | 2 within 800 m (0.5 miles); nearest The Home Park 30 ha | 530 m (0.3 miles) |
| Allotments | 1 within 800 m (0.5 miles); nearest Brook Street Allotments 2,830 m² | 370 m |
Within 800 m (0.5 miles): 4 parks and gardens, 1,190 hectares in all.
Landmarks
The nearest historic landmark is Church of St John the Baptist, a listed building (Grade II*), 70 m west. 284 listed buildings are within 1 km (0.6 miles), 3 of them Grade I and 17 of them Grade II*.
| Name | What it is | From the postcode's centre |
|---|---|---|
| Church of St John the Baptist | Listed building, Grade II* | 70 m west |
| 20, Park Street | Listed building, Grade II* | 80 m south |
| 12-16, Park Street | Listed building, Grade II* | 100 m south |
| Church Rooms | Listed building, Grade II* | 100 m north-west |
| Windsor Castle | Scheduled monument | 250 m north |
| The Royal Estate, Windsor: Windsor Castle and Home Park | Registered park or garden, Grade I | 780 m (0.5 miles) south-east |
| The Royal Estate, Windsor: Frogmore Gardens | Registered park or garden, Grade I | 1 km (0.6 miles) south-east |
| Moated site at Moat Park, New Windsor | Scheduled monument | 1.9 km (1.2 miles) south-west |
| Name | What it is | From the postcode's centre |
|---|---|---|
| Broad Water | Lake or reservoir | 480 m (0.3 miles) north-east |
| Firework Ait | Island | 540 m (0.3 miles) north-west |
| Cutlers Ait | Island | 870 m (0.5 miles) north |
| Deadwater Ait | Island | 870 m (0.5 miles) north-west |
| Queen Mary's Plantation | Wood | 2 km (1.2 miles) south-west |
| Peter's Hill | Hill | 2.7 km (1.6 miles) south |
Air quality
| Pollutant | Here | UK limit | WHO guideline |
|---|---|---|---|
| Nitrogen dioxide (NO2) | 13.0 | 40 | 10 |
| Fine particles (PM2.5) | 7.6 | 20 | 5 |
| Particles (PM10) | 11.5 | 40 | 15 |
All three are within the UK legal limits; nitrogen dioxide and PM2.5 are above the WHO guideline, as in most towns and cities.
Road, rail and aircraft noise
| Level | Road traffic | Railways | Aircraft |
|---|---|---|---|
| 55 to 59 | 2 | 0 | 3 |
| Under 55 | 35 | 37 | 34 |
2 of the postcode's 37 addresses are modelled at 55 dB or more from road traffic, and 3 from aircraft, above the WHO guidelines.
Climate, daylight and earthquakes
Monthly temperatures and rainfall, sunrise and sunset through the year, and earthquakes recorded nearby since 1970 are much the same across the area, so they are worked out once for Windsor and Maidenhead: see them on the Windsor and Maidenhead page.
People and work
Who lives here
| Around this postcode | England | |
|---|---|---|
| Median age | 39 | 40 |
| Children under 15 | 8% | 17% |
| Aged 65 and over | 11% | 18% |
Homes
| Around this postcode | England | |
|---|---|---|
| Owned (outright or with a mortgage) | 36% | 61% |
| Owned outright | 16% | 33% |
| Shared ownership | under 1% | 1% |
| Social rented | 3% | 17% |
| Private rented | 61% | 21% |
Work and commuting
| Around this postcode | England | |
|---|---|---|
| Adults (16 and over) in work | 73% | 57% |
| Unemployment (of those working or looking for work) | 4% | 6% |
| Retired (of adults) | 12% | 22% |
| Long-term sick or disabled (of adults) | 2% | 4% |
| Work mainly from home (of those in work) | 50% | 32% |
| Travel to work by car or van | 28% | 48% |
| By train, Underground, metro or tram | 9% | 4% |
| By any public transport, including bus | 10% | 8% |
| On foot or by bicycle | 11% | 10% |
| Work within 10 km (6 miles) of home (of those who travel to work) | 65% | 65% |
| Work 30 km (19 miles) or more away | 13% | 8% |
Education and languages
| Around this postcode | England | |
|---|---|---|
| Degree or other higher qualification, Level 4+ (of adults) | 63% | 34% |
| No qualifications | 7% | 18% |
| Apprenticeship as highest qualification | 3% | 5% |
| Main language English (aged 3 and over) | 84% | 91% |
| Cannot speak English well or at all | 2% | 2% |
Deprivation
The neighbourhood around this postcode is in decile 8 of 10 on the English Indices of Deprivation 2025, where 1 is the most deprived tenth of England's 33,755 neighbourhoods and 10 the least.
The full dossier for this postcode's main street is on St Alban's Street.