# CT15

Postcode district covering St Margaret's at Cliffe and Sibertswold, in Dover.

CT15 is a postcode district covering St Margaret's at Cliffe and Sibertswold, in Dover. Median sale price £347,500 in 2025.

Postcode district. Code CT15. In: [Postcodes](https://openindex.co.uk/postcode) › [CT](https://openindex.co.uk/postcode/ct)

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 CT15 postcode. [How census figures are added up](https://openindex.co.uk/sources/population)

## Key figures

- **Median sale price: £347,500** (2025). The median price paid for a home in CT15 was £347,500 in 2025. Joint 820th 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/ct15#f-house-sales-median-price
- **Population: 13,182** (2021). CT15 had 13,182 usual residents at the census (ONS Census 2021). 908th least 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/ct15#f-population
- **People in radon Affected Area squares: 100%** (2022). About 100% of people in CT15 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/ct15#f-radon-affected-share
- **Gigabit broadband coverage: 34.3%** (January 2026). In CT15, 34.3% 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/ct15#f-gigabit-coverage

## On the map

- [Radon Affected Area by postcode district](https://openindex.co.uk/map/radon-affected-areas?place=CT15) (Worked out by Open Index · 2022): About 100% of people in CT15 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=CT15) (Worked out by Open Index · 2025): 169 homes were sold in CT15 in 2025.
- [Crime and ASB by postcode district](https://openindex.co.uk/map/recorded-crime?place=CT15) (Police recorded crime and outcomes (data.police.uk) · August 2026): Crime and anti-social behaviour for CT15.
- [Population by postcode district](https://openindex.co.uk/map/population?place=CT15) (Census 2021, England and Wales): CT15 had 13,182 usual residents at the census.

## How CT15 compares

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

| Measure | CT15 | Rank | Compared with |
| --- | --- | --- | --- |
| Median sale price | £347,500 | 6th most expensive | 21 postcode districts, CT · 2025 |
| Population | 13,182 | 4th least populated | 21 postcode districts, CT · 2021 |
| People in radon Affected Area squares | 100% | joint most people in radon Affected Areas | 21 postcode districts, CT · 2022 |
| Gigabit broadband coverage | 34.3% | lowest | 21 postcode districts, CT · Jan 2026 |

## Is CT15 safe? What police records show

In the 12 months to August 2026, police recorded crimes and anti-social behaviour in CT15 at a rate of 60.5 per 1,000 people.
That compares with 102.8 per 1,000 people across the CT postcode area.
In August 2026 alone, 103 cases of crime and anti-social behaviour were recorded in CT15.
In the 12 months to August 2026, the most common types were violence and sexual offences (296), anti-social behaviour (180) and other crime (138).
A year earlier, the recorded crime rate in CT15 was 48.9 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 CT15, neighbourhood by neighbourhood

- Deprivation is ranked by neighbourhood, so CT15 has no single figure. Of its 9 neighbourhoods with a rank:
- Decile 3: 1 neighbourhood
- Decile 4: 2 neighbourhoods
- Decile 5: 3 neighbourhoods
- Decile 6: 1 neighbourhood
- Decile 7: 2 neighbourhoods

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

## Neighbourhoods in CT15

| Area | People (census) | Recorded crime per 1,000 | Deprivation decile | Gigabit broadband |
| --- | --- | --- | --- | --- |
| [Dover 006A](https://openindex.co.uk/dover/neighbourhood/e01024190) | 1,525 | 42.0 per 1,000 | 5 | 40.2% |
| [Dover 006D](https://openindex.co.uk/dover/neighbourhood/e01024204) | 1,634 | 54.9 per 1,000 | 3 | 74.7% |
| [Dover 008A](https://openindex.co.uk/dover/neighbourhood/e01024200) | 1,676 | 50.7 per 1,000 | 4 | 51.2% |
| [Dover 008B](https://openindex.co.uk/dover/neighbourhood/e01024203) | 1,601 | 64.5 per 1,000 | 7 | 37.8% |
| [Dover 008C](https://openindex.co.uk/dover/neighbourhood/e01024205) | 1,542 | 61.4 per 1,000 | 4 | 95.9% |
| [Dover 009B](https://openindex.co.uk/dover/neighbourhood/e01024236) | 1,735 | 63.3 per 1,000 | 5 | 12.1% |
| [Dover 009C](https://openindex.co.uk/dover/neighbourhood/e01024237) | 1,569 | 53.5 per 1,000 | 7 | 7.6% |
| [Dover 012B](https://openindex.co.uk/dover/neighbourhood/e01024238) | 1,972 | 37.7 per 1,000 | 5 | 9.6% |
| [Dover 014D](https://openindex.co.uk/dover/neighbourhood/e01024234) | 1,398 | 57.4 per 1,000 | 6 | 40.4% |

## Your MP

- [Dover and Deal](https://openindex.co.uk/constituency/dover-and-deal): Mike Tapp (Labour), MP since July 2024. 96% of the people here.
- [Ashford](https://openindex.co.uk/constituency/ashford): Sojan Joseph (Labour), MP since July 2024. 3.9% 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 CT15

[Eythorne & Shepherdswell](https://openindex.co.uk/dover/eythorne-and-shepherdswell)

## Postcode sectors in CT15

[CT15 4 (148 postcodes)](https://openindex.co.uk/postcode/ct15-4), [CT15 5 (150 postcodes)](https://openindex.co.uk/postcode/ct15-5), [CT15 6 (113 postcodes)](https://openindex.co.uk/postcode/ct15-6), [CT15 7 (197 postcodes)](https://openindex.co.uk/postcode/ct15-7)

## Council

[Dover](https://openindex.co.uk/dover)

## Postcode districts next to CT15

[CT3](https://openindex.co.uk/postcode/ct3), [CT4](https://openindex.co.uk/postcode/ct4), [CT13](https://openindex.co.uk/postcode/ct13), [CT14](https://openindex.co.uk/postcode/ct14), [CT16](https://openindex.co.uk/postcode/ct16), [CT17](https://openindex.co.uk/postcode/ct17), [CT18](https://openindex.co.uk/postcode/ct18)

## Nearest rail stations

[Shepherds Well (650 m from the middle)](https://openindex.co.uk/map/rail-stations?around=1.2299,51.1884), [Snowdown (3.4 km from the middle)](https://openindex.co.uk/map/rail-stations?around=1.2137,51.2153), [Aylesham (4.7 km from the middle)](https://openindex.co.uk/map/rail-stations?around=1.2094,51.2272), [Kearsney (Kent) (5.0 km from the middle)](https://openindex.co.uk/map/rail-stations?around=1.2721,51.1494)

## More in the CT postcode area

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

## CT15 in brief

CT15 is a postcode district covering St Margaret's at Cliffe and Sibertswold, in Dover.
About 13,378 people lived in CT15 in mid-2024 (worked out by Open Index from ONS small-area estimates); the median price paid for a home was £347,500 in 2025 across 169 sales (HM Land Registry) and police recorded crimes and anti-social behaviour at a rate of 60.5 per 1,000 people in the 12 months to August 2026 (police.uk).
The median price paid for a home in CT15 was £347,500 in 2025.
CT15 had 13,182 usual residents at the census.
About 100% of people in CT15 live in a 1 km square that the radon atlas marks as a radon Affected Area.
In CT15, 34.3% of homes and businesses could get gigabit-capable broadband in January 2026.

## About

- Type: Postcode district
- Code: CT15
- Postcode area: [CT](https://openindex.co.uk/postcode/ct)
- Constituency: [Dover and Deal †](https://openindex.co.uk/constituency/dover-and-deal)
- Council: [Dover †](https://openindex.co.uk/dover)
- Area: 107 km²
- People, mid-2024: 13,378*
- Neighbourhoods: 9
- Output areas: 39

* 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

[CT14](https://openindex.co.uk/postcode/ct14), [CT16](https://openindex.co.uk/postcode/ct16), [CT18](https://openindex.co.uk/postcode/ct18), [CT4](https://openindex.co.uk/postcode/ct4), [CT17](https://openindex.co.uk/postcode/ct17), [CT3](https://openindex.co.uk/postcode/ct3)

## Latest updates for CT15

- 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/CT15

## How to cite

Source: Open Index, openindex.co.uk. Link to this page, https://openindex.co.uk/postcode/ct15, or to one figure with its anchor, https://openindex.co.uk/postcode/ct15#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/ct15