# Lisburn South B4

North west Lisburn and Castlereagh. 453 people (mid-2024 estimate) in 0.1 square kilometres.

Lisburn South B4 had 465 usual residents at the census (NISRA Census 2021).

Neighbourhood. Code N20002335. In: [Northern Ireland](https://openindex.co.uk/northern-ireland) › [Lisburn and Castlereagh](https://openindex.co.uk/lisburn-and-castlereagh)

## Key figures

- **Population: 465** (2021). Lisburn South B4 had 465 usual residents at the census (NISRA Census 2021). Joint 1,897th least populated of 46,844. 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/lisburn-and-castlereagh/neighbourhood/n20002335#f-population
- **Gigabit broadband coverage: 100.0%** (January 2026). In Lisburn South B4, 100.0% 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/lisburn-and-castlereagh/neighbourhood/n20002335#f-gigabit-coverage
- **Aged 15 to 64: 63.4%** (2021). 63.4% of residents in Lisburn South B4 were aged 15 to 64 at the census (NISRA Census 2021). Joint 22,741st highest of 46,844. 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/lisburn-and-castlereagh/neighbourhood/n20002335#f-age-15-to-64
- **Aged 65 and over: 8.1%** (2021). 8.1% of residents in Lisburn South B4 were aged 65 or over at the census (NISRA Census 2021). Joint 4,165th lowest of 46,844. 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/lisburn-and-castlereagh/neighbourhood/n20002335#f-age-65-and-over

## On the map

- [Gigabit coverage by neighbourhood](https://openindex.co.uk/map/gigabit-broadband#place=N20002335) (Connected Nations (Ofcom) · January 2026): In Lisburn South B4, 100.0% of homes and businesses could get gigabit-capable broadband in January 2026.
- [Average house price by council](https://openindex.co.uk/map/house-prices#place=N20002335) (UK House Price Index · August 2026): Published for whole councils, so the map colours all of Lisburn and Castlereagh. The outline is Lisburn South B4.
- [Crime and ASB by neighbourhood](https://openindex.co.uk/map/recorded-crime#place=N20002335) (Police recorded crime and outcomes (data.police.uk) · August 2026): Police recorded 1 crime or anti-social behaviour incident in Lisburn South B4 in August 2026.
- [Population by neighbourhood](https://openindex.co.uk/map/population#place=N20002335) (Census 2021, England and Wales): Lisburn South B4 had 465 usual residents at the census.

Northern Ireland Multiple Deprivation Measure 2017 is published for the Super Output Areas (2001), whose boundaries differ from this neighbourhood’s, so it has no figure for Lisburn South B4. [See deprivation across Lisburn and Castlereagh](https://openindex.co.uk/lisburn-and-castlereagh/deprivation)

## How Lisburn South B4 compares

Each neighbourhood against every other neighbourhood the measure covers.

| Measure | Lisburn South B4 | Rank | Compared with |
| --- | --- | --- | --- |
| Population | 465 | joint 119th least populated | 296 neighbourhoods, Lisburn and Castlereagh · 2021 |
| Gigabit broadband coverage | 100.0% | joint highest | 296 neighbourhoods, Lisburn and Castlereagh · Jan 2026 |
| Aged 15 to 64 | 63.4% | joint 147th lowest | 296 neighbourhoods, Lisburn and Castlereagh · 2021 |
| Aged 65 and over | 8.1% | 37th lowest | 296 neighbourhoods, Lisburn and Castlereagh · 2021 |

## Is Lisburn South B4 safe? What police records show

In the 12 months to August 2026, police recorded crimes and anti-social behaviour in Lisburn South B4 at a rate of 39.7 per 1,000 people.
That compares with 72.9 per 1,000 people across Lisburn South B.
Across Northern Ireland as a whole, the recorded crime rate was 70.2 per 1,000 people.
In August 2026 alone, 1 case of crime and anti-social behaviour was recorded in Lisburn South B4.
In the 12 months to August 2026, the most common types were anti-social behaviour (7), violence and sexual offences (7) and vehicle crime (2).
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.

## Figures for the whole of Lisburn and Castlereagh

These figures are published for the whole of Lisburn and Castlereagh, not for each neighbourhood, so they describe all of Lisburn and Castlereagh and not Lisburn South B4 alone. [See Lisburn and Castlereagh](https://openindex.co.uk/lisburn-and-castlereagh)

- **Average house price: £240,737** (August 2026). Lisburn and Castlereagh’s average house price was £240,737 in August 2026 (HM Land Registry). Up 9.7% in a year. Source: UK House Price Index, August 2026. Published 21 October 2026.
- **Population estimate: 152,367** (2025). Lisburn and Castlereagh’s population was an estimated 152,367 in mid-2025 (ONS population estimates). Up 0.5% in a year. Source: Mid-year population estimates, 2025. Published 1 October 2026.
- **Female life expectancy: 83.8 years** (2022 to 2024). A baby girl born in Lisburn and Castlereagh could expect to live 83.8 years, based on deaths in 2022 to 2024 (ONS life expectancy). UK 83.0 years. Source: Life expectancy for local areas of the UK, 2022 to 2024. Published 10 December 2025.
- **People in radon Affected Area squares: 32%** (2022). About 32% of people in Lisburn and Castlereagh 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.

## Lisburn South B4 in brief

Lisburn South B4 had 465 usual residents at the census.
In Lisburn South B4, 100.0% of homes and businesses could get gigabit-capable broadband in January 2026.
63.4% of residents in Lisburn South B4 were aged 15 to 64 at the census.
8.1% of residents in Lisburn South B4 were aged 65 or over at the census.

## About

- Type: Neighbourhood
- Code: N20002335
- Middle area: [Lisburn South B](https://openindex.co.uk/lisburn-and-castlereagh/lisburn-south-b)
- Ward: [Ballymacoss †](https://openindex.co.uk/lisburn-and-castlereagh/ward/ballymacoss)
- Constituency: [Lagan Valley †](https://openindex.co.uk/constituency/lagan-valley)
- Council: [Lisburn and Castlereagh](https://openindex.co.uk/lisburn-and-castlereagh)
- Nation: [Northern Ireland](https://openindex.co.uk/northern-ireland)
- Area: 0.07 km²
- People, mid-2024: 453

† Best fit: the ward and constituency this neighbourhood mostly lies in. Its edges do not follow theirs.

## Next door

[Lisburn South D2](https://openindex.co.uk/lisburn-and-castlereagh/neighbourhood/n20002341), [Lisburn South E1](https://openindex.co.uk/lisburn-and-castlereagh/neighbourhood/n20002336), [Lisburn South B3](https://openindex.co.uk/lisburn-and-castlereagh/neighbourhood/n20002334), [Lisburn South B1](https://openindex.co.uk/lisburn-and-castlereagh/neighbourhood/n20002329)

## Latest updates for Lisburn South B4

- August 2026 house prices published: HM Land Registry and partners · Oct 2026.
- September 2026 rent published: ONS private rents · Oct 2026.
- Nitrogen dioxide (NO2) updated: Defra · Oct 2026.
- 2025 population published: ONS population estimates · Oct 2026.

The same figures as JSON: https://openindex.co.uk/v1/places/N20002335

## How to cite

Source: Open Index, openindex.co.uk. Link to this page, https://openindex.co.uk/lisburn-and-castlereagh/neighbourhood/n20002335, or to one figure with its anchor, https://openindex.co.uk/lisburn-and-castlereagh/neighbourhood/n20002335#f-population.

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 2026.10.11. The HTML page: https://openindex.co.uk/lisburn-and-castlereagh/neighbourhood/n20002335