Postcode NN1 3BY 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 326.3 crimes per 1,000 residents per year. The average income per household in Town Centre & Semilong is £41,679 per year. The nearest station is Northampton located about 0.7 miles away. There are 7 primary and 1 secondary schools in the area. There are 2 parks nearby, closest large park is The Racecourse.
Town Centre & Semilong has a very high level of deprivation, ranked at position 2,420 out of 32,844 areas in the United Kingdom — placing it within the top 7% most deprived areas in England.
Town Centre & Semilong has a very high crime rate, with approximately 326.3 reported incidents per 1,000 population each year.
Approximately 54.9% 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.
The average income per household in Town Centre & Semilong is £41,679 per year.
High noise level (70.0-74.9 dB) from road, approximately 220 ft away from NN1 3BY.
Town Centre & Semilong near NN1 3BY has no flood risk (less than 0.1% chance of a flood each year) from rivers and sea.
The nearest station is Northampton located about 0.7 miles away. There are 1 stations nearby.
| Distance | Name | Lines | Directions |
|---|---|---|---|
| 0.7 mi | Northampton | N/A | Walking directions to Northampton |
| Distance | Name | Size | Directions |
|---|---|---|---|
| 0.4 mi | The Racecourse | Large | Walking directions to The Racecourse |
| 0.4 mi | Millers Meadow | Small | Walking directions to Millers Meadow |
Based on 174 recent sales, the median property price is £180,000 in Castle area, with individual transactions ranging from £44,000 up to £475,000.
Price distribution per property type (last year)
Median sale price and percentiles per property type (last year)
| Type | Sales | Median |
|---|---|---|
| Detached | 2 | £403,500 |
| Flats | 86 | £143,250 |
| Semi-Detached | 1 | £220,000 |
| Terraced | 85 | £207,000 |
10 year median price trend in Castle
In the NN1 3BY postcode area, located within Town Centre & Semilong, there are 7 primary and 1 secondary schools in close proximity.
15 nearby supermarkets & convenience stores within mi of NN1 3BY
| Distance | Name | Address | Directions |
|---|---|---|---|
| 0 mi | Lorne Road Mini Market | 5 Lorne Road, Northampton, NN1 3RN | Walking directions to Lorne Road Mini Market |
| 0 mi | Best Pol Delicatessen | 40 Barrack Road, Northampton, NN1 3RJ | Walking directions to Best Pol Delicatessen |
| 0.1 mi | Little Europe | 10 Wellington Place, Northampton, NN1 3RQ | Walking directions to Little Europe |
| 0.1 mi | Bailiff Street Mini Market | 115 Baliff Street, Northampton, NN1 3EA | Walking directions to Bailiff Street Mini Market |
| 0.1 mi | Marco Polo Euro Market | 108 Baliff Street, Northampton, NN1 3EA | Walking directions to Marco Polo Euro Market |
Annual council tax rates for West Northamptonshire district (2025-26).
Council tax bands are based on the value of your property. Most homes fall into bands A to D.
All data is sourced from official UK government agencies and public datasets. Last updated: 16/01/2026.