# SW12

Postcode district covering Balham, Clapham Common and Poynders Parade, in Wandsworth and Lambeth.

SW12 is a postcode district covering Balham, Clapham Common and Poynders Parade, in Wandsworth and Lambeth. Median sale price £725,000 in 2025.

Postcode district. Code SW12. In: [Postcodes](https://openindex.co.uk/postcode) › [SW](https://openindex.co.uk/postcode/sw)

Approximate outline worked out by Open Index from the ONS Postcode Directory: each census output area belongs to the district that holds most of its postcodes. People, homes, recorded crime and broadband add up those output areas. House sales count every sale with an SW12 postcode. [How census figures are added up](https://openindex.co.uk/sources/population)

## Key figures

- **Median sale price: £725,000** (2025). The median price paid for a home in SW12 was £725,000 in 2025. 65th most expensive of 2,235. Source: Worked out by Open Index from HM Land Registry Price Paid Data. Published 28 September 2026. https://openindex.co.uk/postcode/sw12#f-house-sales-median-price
- **Population: 31,606** (2021). SW12 had 31,606 usual residents at the census (ONS Census 2021). 832nd most populated of 2,756. Source: Census 2021, England and Wales and Scotland's Census 2022 and Census 2021, Northern Ireland, 2021. Published 21 July 2026. https://openindex.co.uk/postcode/sw12#f-population
- **People in radon Affected Area squares: 0%** (2022). About 0% of people in SW12 live in a 1 km square that the radon atlas marks as a radon Affected Area. UK 44%. Source: Worked out by Open Index from the UKHSA and BGS radon atlas and census output areas. Published 1 December 2022. https://openindex.co.uk/postcode/sw12#f-radon-affected-share
- **Gigabit broadband coverage: 94.0%** (January 2026). In SW12, 94.0% of homes and businesses could get gigabit-capable broadband in January 2026 (Ofcom). UK 87.8%. Source: Connected Nations (Ofcom), January 2026. Published 13 May 2026. https://openindex.co.uk/postcode/sw12#f-gigabit-coverage

## On the map

- [Radon Affected Area by postcode district](https://openindex.co.uk/map/radon-affected-areas?place=SW12) (Worked out by Open Index · 2022): About 0% of people in SW12 live in a 1 km square that the radon atlas marks as a radon Affected Area.
- [Sales per year by postcode district](https://openindex.co.uk/map/house-sales-per-year?place=SW12) (Worked out by Open Index · 2025): 564 homes were sold in SW12 in 2025.
- [Crime and ASB by postcode district](https://openindex.co.uk/map/recorded-crime?place=SW12) (Police recorded crime and outcomes (data.police.uk) · August 2026): Crime and anti-social behaviour for SW12.
- [Population by postcode district](https://openindex.co.uk/map/population?place=SW12) (Census 2021, England and Wales): SW12 had 31,606 usual residents at the census.

## How SW12 compares

Each postcode district against every other postcode district the measure covers.

| Measure | SW12 | Rank | Compared with |
| --- | --- | --- | --- |
| Median sale price | £725,000 | 11th cheapest | 26 postcode districts, SW · 2025 |
| Population | 31,606 | 12th most populated | 28 postcode districts, SW · 2021 |
| People in radon Affected Area squares | 0% | – | 28 postcode districts, SW · 2022 |
| Gigabit broadband coverage | 94.0% | 8th highest | 28 postcode districts, SW · Jan 2026 |

## Is SW12 safe? What police records show

In the 12 months to August 2026, police recorded crimes and anti-social behaviour in SW12 at a rate of 95.3 per 1,000 people.
That compares with 126.0 per 1,000 people across the SW postcode area.
In August 2026 alone, 233 cases of crime and anti-social behaviour were recorded in SW12.
In the 12 months to August 2026, the most common types were violence and sexual offences (563), anti-social behaviour (555) and other crime (532).
A year earlier, the recorded crime rate in SW12 was 97.7 per 1,000 people.
Worked out by Open Index from police.uk crime records and ONS and NISRA population estimates.
Rates are per resident, so places that many people work in or visit, such as Westminster, the City of London and other city centres, have far higher rates than their residents alone would suggest.

## Deprivation in SW12, neighbourhood by neighbourhood

- Deprivation is ranked by neighbourhood, so SW12 has no single figure. Of its 20 neighbourhoods with a rank:
- Decile 6: 2 neighbourhoods
- Decile 7: 5 neighbourhoods
- Decile 8: 4 neighbourhoods
- Decile 9: 8 neighbourhoods
- Decile 10 (England’s least deprived 10%): 1 neighbourhood

Source: English Indices of Deprivation 2025. Decile 1 is the most deprived tenth of neighbourhoods in England.

## Neighbourhoods in SW12

| Area | People (census) | Recorded crime per 1,000 | Deprivation decile | Gigabit broadband |
| --- | --- | --- | --- | --- |
| [Lambeth 023B](https://openindex.co.uk/lambeth/neighbourhood/e01003156) | 1,597 | 32.7 per 1,000 | 6 | 100.0% |
| [Lambeth 023C](https://openindex.co.uk/lambeth/neighbourhood/e01003157) | 1,582 | 82.4 per 1,000 | 8 | 95.1% |
| [Lambeth 023D](https://openindex.co.uk/lambeth/neighbourhood/e01003158) | 1,624 | 66.3 per 1,000 | 9 | 99.4% |
| [Lambeth 023E](https://openindex.co.uk/lambeth/neighbourhood/e01003161) | 1,317 | 78.4 per 1,000 | 7 | 88.1% |
| [Lambeth 023F](https://openindex.co.uk/lambeth/neighbourhood/e01003163) | 1,599 | 61.1 per 1,000 | 7 | 83.5% |
| [Wandsworth 017A](https://openindex.co.uk/wandsworth/neighbourhood/e01004477) | 1,657 | 92.4 per 1,000 | 10 | 98.9% |
| [Wandsworth 017C](https://openindex.co.uk/wandsworth/neighbourhood/e01004479) | 1,512 | 48.2 per 1,000 | 9 | 95.9% |
| [Wandsworth 017D](https://openindex.co.uk/wandsworth/neighbourhood/e01004550) | 1,361 | 70.1 per 1,000 | 7 | 99.8% |
| [Wandsworth 021A](https://openindex.co.uk/wandsworth/neighbourhood/e01004472) | 1,782 | 110.5 per 1,000 | 9 | 94.4% |
| [Wandsworth 021B](https://openindex.co.uk/wandsworth/neighbourhood/e01004474) | 2,017 | 453.1 per 1,000 | 6 | 89.6% |
| [Wandsworth 021C](https://openindex.co.uk/wandsworth/neighbourhood/e01004476) | 1,812 | 191.0 per 1,000 | 7 | 91.6% |
| [Wandsworth 021D](https://openindex.co.uk/wandsworth/neighbourhood/e01004542) | 1,572 | 59.7 per 1,000 | 9 | 98.5% |
| [Wandsworth 021E](https://openindex.co.uk/wandsworth/neighbourhood/e01004544) | 1,537 | 57.4 per 1,000 | 9 | 98.5% |
| [Wandsworth 026A](https://openindex.co.uk/wandsworth/neighbourhood/e01004473) | 1,773 | 52.0 per 1,000 | 8 | 99.6% |
| [Wandsworth 026B](https://openindex.co.uk/wandsworth/neighbourhood/e01004475) | 1,510 | 56.5 per 1,000 | 8 | 99.7% |
| [Wandsworth 026C](https://openindex.co.uk/wandsworth/neighbourhood/e01004480) | 1,721 | 25.1 per 1,000 | 9 | 98.8% |
| [Wandsworth 026E](https://openindex.co.uk/wandsworth/neighbourhood/e01004484) | 1,498 | 48.6 per 1,000 | 7 | 78.2% |
| [Wandsworth 026F](https://openindex.co.uk/wandsworth/neighbourhood/e01004486) | 1,425 | 37.5 per 1,000 | 8 | 90.8% |
| [Wandsworth 027A](https://openindex.co.uk/wandsworth/neighbourhood/e01004543) | 1,743 | 98.2 per 1,000 | 9 | 93.9% |
| [Wandsworth 027B](https://openindex.co.uk/wandsworth/neighbourhood/e01004545) | 1,937 | 74.2 per 1,000 | 9 | 95.7% |

## Your MP

- [Battersea](https://openindex.co.uk/constituency/battersea): Marsha De Cordova (Labour), MP since July 2024. 43% of the people here.
- [Tooting](https://openindex.co.uk/constituency/tooting): Dr Rosena Allin-Khan (Labour), MP since July 2024. 31% of the people here.
- [Clapham and Brixton Hill](https://openindex.co.uk/constituency/clapham-and-brixton-hill): Bell Ribeiro-Addy (Labour), MP since July 2024. 26% of the people here.
- [Streatham and Croydon North](https://openindex.co.uk/constituency/streatham-and-croydon-north): Steve Reed (Labour (Co-op)), MP since July 2024. 0.2% of the people here.

As of 18 October 2026. Contains Parliamentary information licensed under the Open Parliament Licence v3.0. Source: UK Parliament, Members API.

## Middle areas in SW12

[Balham](https://openindex.co.uk/wandsworth/balham), [Clapham Park West](https://openindex.co.uk/lambeth/clapham-park-west), [Nightingale Lane](https://openindex.co.uk/wandsworth/nightingale-lane), [Tooting Bec Common](https://openindex.co.uk/wandsworth/tooting-bec-common)

## Postcode sectors in SW12

[SW12 0 (161 postcodes)](https://openindex.co.uk/postcode/sw12-0), [SW12 2 (11 postcodes)](https://openindex.co.uk/postcode/sw12-2), [SW12 8 (236 postcodes)](https://openindex.co.uk/postcode/sw12-8), [SW12 9 (186 postcodes)](https://openindex.co.uk/postcode/sw12-9)

## Councils SW12 covers

[Wandsworth](https://openindex.co.uk/wandsworth), [Lambeth](https://openindex.co.uk/lambeth)

## Towns in SW12

[Lambeth](https://openindex.co.uk/lambeth), [Wandsworth](https://openindex.co.uk/wandsworth)

## Postcode districts next to SW12

[SW2](https://openindex.co.uk/postcode/sw2), [SW4](https://openindex.co.uk/postcode/sw4), [SW11](https://openindex.co.uk/postcode/sw11), [SW16](https://openindex.co.uk/postcode/sw16), [SW17](https://openindex.co.uk/postcode/sw17)

## Nearest rail stations

[Balham (450 m from the middle)](https://openindex.co.uk/map/rail-stations?around=-0.1524,51.4432), [Balham (500 m from the middle)](https://openindex.co.uk/map/rail-stations?around=-0.1530,51.4433), [Clapham South (700 m from the middle)](https://openindex.co.uk/map/rail-stations?around=-0.1476,51.4526), [Wandsworth Common (1.1 km from the middle)](https://openindex.co.uk/map/rail-stations?around=-0.1634,51.4462)

## More in the SW postcode area

[All SW postcode districts](https://openindex.co.uk/postcode/sw), [Every UK postcode area](https://openindex.co.uk/postcode)

## SW12 in brief

SW12 is a postcode district covering Balham, Clapham Common and Poynders Parade, in Wandsworth and Lambeth.
About 30,893 people lived in SW12 in mid-2024 (worked out by Open Index from ONS small-area estimates); the median price paid for a home was £725,000 in 2025 across 564 sales (HM Land Registry) and police recorded crimes and anti-social behaviour at a rate of 95.3 per 1,000 people in the 12 months to August 2026 (police.uk).
The median price paid for a home in SW12 was £725,000 in 2025.
SW12 had 31,606 usual residents at the census.
About 0% of people in SW12 live in a 1 km square that the radon atlas marks as a radon Affected Area.
In SW12, 94.0% of homes and businesses could get gigabit-capable broadband in January 2026.

## About

- Type: Postcode district
- Code: SW12
- Postcode area: [SW](https://openindex.co.uk/postcode/sw)
- Constituency: [Battersea †](https://openindex.co.uk/constituency/battersea)
- Council: [Wandsworth †](https://openindex.co.uk/wandsworth)
- Area: 2.92 km²
- People, mid-2024: 30,893*
- Neighbourhoods: 20
- Output areas: 106

* People: worked out by Open Index from neighbourhood estimates, shared out by where people lived at the census (by area in Northern Ireland). This area's edges do not follow neighbourhood edges, so the figure is close but not exact.
† Best fit: the constituency, council, region and nation this postcode district mostly lies in. Its edges do not follow theirs.

## Next door

[SW17](https://openindex.co.uk/postcode/sw17), [SW4](https://openindex.co.uk/postcode/sw4), [SW11](https://openindex.co.uk/postcode/sw11), [SW2](https://openindex.co.uk/postcode/sw2), [SW16](https://openindex.co.uk/postcode/sw16)

## Latest updates for SW12

- August 2026 house prices published: HM Land Registry and partners · Oct 2026.
- September 2026 rent published: ONS private rents · Oct 2026.
- Dental practices updated: NHS England · Oct 2026.
- Schools updated: Ofsted · Oct 2026.

The same figures as JSON: https://openindex.co.uk/v1/places/SW12

## How to cite

Source: Open Index, openindex.co.uk. Link to this page, https://openindex.co.uk/postcode/sw12, or to one figure with its anchor, https://openindex.co.uk/postcode/sw12#f-house-sales-median-price.

Open Index's own text and the figures it works out are licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Source data keeps its publishers' licences, named with each figure. Give each figure's period and source with it.

Snapshot 2026.10.9. The HTML page: https://openindex.co.uk/postcode/sw12