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Postcode insights

NN1 1AJ

Castle

West Northamptonshire

Interactive map showing NN1 1AJ and surrounding area

Detailed insights for NN1 1AJ

Overview

Postcode NN1 1AJ is located in an urban city, within the Castle ward of West Northamptonshire in the East Midlands region, and forms part of the Town Centre & Semilong area. It has very high deprivation and very high crime levels, with around 1118.2 crimes per 1,000 residents per year. The average income of residents in Town Centre & Semilong is £36,800 per year. The nearest station is Northampton located about 0.3 miles away. There are 6 primary and no secondary schools in the area. There are 3 parks nearby, closest large park is Becket's Park.

Crime rate
10/10
Crimes per 1k residents
1118
Deprivation level
10/10
Income level
3/10
Social housing
21.1%
Connectivity
N/A
Flood Risk
No risk
Noise Level
High

Deprivation level

10/10

Town Centre & Semilong has a very high level of deprivation, ranked at position 1,372 out of 32,844 areas in the United Kingdom — placing it within the top 4% most deprived areas in England.

Crime level

10/10

Town Centre & Semilong has a very high crime rate, with approximately 1118.2 reported incidents per 1,000 residents each year.

Social housing

21.1%

Approximately 21.1% of homes on this street are social housing provided by a local council or housing association. Across the surrounding area, around 36.1% of dwellings are socially rented.

Income level

3/10

The average income of residents in Town Centre & Semilong is £36,800 per year.

Noise Level

High

High noise level (70.0-74.9 dB) from road, approximately 49 ft away from NN1 1AJ.

Flood risk

No risk

Town Centre & Semilong near NN1 1AJ has no flood risk (less than 0.1% chance of a flood each year) from rivers and sea.

Transport

The nearest station is Northampton located about 0.3 miles away. There are 1 stations nearby.

Nearby public transport stations for NN1 1AJ
DistanceNameLinesDirections
0.3 mi

Northampton

N/A

Walking directions to Northampton

Parks

Nearby parks and green spaces for NN1 1AJ
DistanceNameSizeDirections
0.5 miBecket's ParkLargeWalking directions to Becket's Park
0.3 miCastle MoundSmallWalking directions to Castle Mound
0.2 miMarefair Heritage Park (under construction)SmallWalking directions to Marefair Heritage Park (under construction)

Area Profile

Population
406
Population density
458.5 per km²

Demographics

Ethnic groups

Other White
148
36.45%
British
140
34.48%
African
31
7.64%
Indian
25
6.16%
Other
21
5.17%
Total population: 406

Housing

Housing tenure

Private landlord or letting agency
144
64.57%
Other social rented
40
17.94%
Other forms of private rent
14
6.28%
Owns with a mortgage
11
4.93%
Social rents from council
7
3.14%
Total households: 223

Property prices in Castle

Based on 161 recent sales, the median property price is £178,500 in Castle area, with individual transactions ranging from £44,000 up to £475,000.

Price distribution per property type (last year)

Price distribution by property type for Castle in the last year.

Median sale price and percentiles per property type (last year)

Median sale price, sales count, and percentile information for each property type in Castle over the last year.
TypeSalesMedian
Flats78£138,750
Semi-Detached1£135,000
Terraced82£205,000

10 year median price trend in Castle

Ten year median sale price trend for each property type in Castle.

Schools

In the NN1 1AJ postcode area, located within Town Centre & Semilong, there are 6 primary and 0 secondary schools in close proximity.

Nearby primary and secondary schools for NN1 1AJ
DistancePhaseNameTypeRating
0.4 miPrimarySpring Lane Primary SchoolAcademy sponsor led

Good

0.4 miNot applicableNew Horizons AcademyFree schools alternative provision

N/A

0.4 miNot applicableProgress Schools - NorthamptonshireOther independent special school

Inadequate

Local amenities

15 nearby supermarkets & convenience stores within mi of NN1 1AJ

Nearby supermarkets & convenience stores for NN1 1AJ
DistanceNameAddressDirections
0 miGold Street World's Food Market49 Gold Street, Northampton, NN1 1RAWalking directions to Gold Street World's Food Market
0 miGrocery PlusKettering Road, West Northamptonshire, NN1 1PTWalking directions to Grocery Plus
0.1 miPranees Thai Shop13a Marefair, Northampton, NN1 1SRWalking directions to Pranees Thai Shop
0.1 miIstanbul Mega Market30 Gold Street, Northampton, NN1 1RSWalking directions to Istanbul Mega Market
0.1 miIceland14 St Peters Square, Northampton, NN1 1PSWalking directions to Iceland

Data Sources

All data is sourced from official UK government agencies and public datasets. Last updated: 16/11/2025.