NN4 Postcode Data
Property data for the NN4 postcode district covering West Northamptonshire. Sold prices, crime statistics, energy performance, and demographic insights, all from HM Land Registry, Police UK, and the EPC Register.
Quick answer
The average sale price in NN4 is £426,328 (median £382,995), based on 143 HM Land Registry transactions. Police UK recorded 187 crimes within a 1-mile radius in 2026-07.
Headline pricing in NN4 is above the UK national average (England & Wales average ~£290k as of 2025). Stock is dominated by detached properties (89 of the last 143 sales).
Avg sale price
£426,328
143 sales
Median price
£382,995
Crime incidents
187
2026-07
Avg EPC score
n/a
164 certs
Recent sold prices
Latest 30 property sales in the NN4 area, sourced from HM Land Registry Price Paid Data.
detached
£496,377
89 sales
semi-detached
£312,560
39 sales
terraced
£243,872
4 sales
| Date | Address | Type | Price |
|---|---|---|---|
| Feb 2026 | 33, RAMFIELD CRESCENT, NORTHAMPTON | semi-detached | £295,000 |
| Oct 2025 | 3, RAMFIELD CRESCENT, NORTHAMPTON | detached | £410,000 |
| Oct 2025 | THE LEYS FARM, LEYS LANE, NORTHAMPTON | other | £1,375,000 |
| Sept 2025 | 36, PITBANK DRIVE, NORTHAMPTON | semi-detached | £375,000 |
| Aug 2025 | 76, WATERMILL WAY, NORTHAMPTON | semi-detached | £399,995 |
| Jun 2025 | 68, WATERMILL WAY, NORTHAMPTON | detached | £390,000 |
| Jun 2025 | 9, GARDENFIELD CRESCENT, NORTHAMPTON | detached | £489,995 |
| Jun 2025 | 70, WATERMILL WAY, NORTHAMPTON | detached | £384,745 |
| Jun 2025 | 10, GARDENFIELD CRESCENT, NORTHAMPTON | detached | £819,995 |
| Jun 2025 | 11, GARDENFIELD CRESCENT, NORTHAMPTON | detached | £819,995 |
| Jun 2025 | 15, GARDENFIELD CRESCENT, NORTHAMPTON | detached | £814,995 |
| Jun 2025 | 7, GARDENFIELD CRESCENT, NORTHAMPTON | detached | £475,000 |
| Jun 2025 | 18, WATERMILL WAY, NORTHAMPTON | semi-detached | £114,000 |
| Mar 2025 | 18, RAMFIELD CRESCENT, NORTHAMPTON | detached | £405,000 |
| Mar 2025 | 18, RAMFIELD CRESCENT, NORTHAMPTON | detached | £401,000 |
Crime in NN4
187 reported crimes within a 1-mile radius of the postcode centroid in 2026-07, from Police UK data.
Violent Crime
60
Anti Social Behaviour
43
Public Order
14
Other Theft
13
Shoplifting
11
Energy performance
Aggregate EPC stats from 164 recently-certified properties in the NN4 area.
Sample size
164
Rating distribution
A
16
B
143
C
0
D
0
E
4
F
1
G
0
Area information
- Local authority
- West Northamptonshire
- Country
- England
- Wards
- Campion, Castle, Cogenhoe & The Houghtons
- Constituency
- Northampton North
- Latitude
- 52.2139
- Longitude
- -0.8995
More for NN4
Typical property
What the typical NN4 property looks like
Area summary, buyer notes, researched facts
Council tax
West Northamptonshire 2025/26 rates
All bands, monthly cost, discounts
Sold prices tool
Full transaction history for NN4
HM Land Registry from 1995
Corporate freeholders
Companies registered in NN4
Live Companies House data + PSCs
EPC checker
Look up any NN4 address
Energy ratings + improvement options
Crime checker
Local breakdown for NN4
Police UK monthly data
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Get a Property ReportData sources & methodology
Sold prices: HM Land Registry Price Paid Data, the official UK government records updated monthly. Sample uses the 30 most recent registered transactions in the postcode area.
Crime: Police UK street-level crime data, covering a 1-mile radius from the NN4 postcode centroid for the most recent month available (typically 2 months behind). For Scottish postcodes we use Police Scotland recorded-crime counts published by the Scottish Government (2024-25), reported by council area.
EPC: opendatacommunities.org, the official Energy Performance Certificate register for England and Wales. Aggregate stats from up to 30 most recent certificates in the postcode. For Scottish postcodes we use Scottish EPC Register lodgements, aggregated to a council-level band distribution (Q2 2025 to Q1 2026). For Northern Ireland we use the NISRA Census 2021 EPC-band classification of every household, aggregated by council (Census 2021).
Area data: postcodes.io, open data from the Office for National Statistics.