NN3 Postcode Data
Property data for the NN3 postcode district covering North 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 NN3 is £313,818 (median £301,500), based on 80 HM Land Registry transactions. Police UK recorded 332 crimes within a 1-mile radius in 2026-05.
Headline pricing in NN3 is broadly in line with the UK national average (England & Wales average ~£290k as of 2025). Stock is dominated by detached properties (36 of the last 80 sales).
Avg sale price
£313,818
80 sales
Median price
£301,500
Crime incidents
332
2026-05
Avg EPC score
n/a
64 certs
Recent sold prices
Latest 30 property sales in the NN3 area, sourced from HM Land Registry Price Paid Data.
detached
£356,720
36 sales
semi-detached
£292,387
31 sales
terraced
£246,115
13 sales
| Date | Address | Type | Price |
|---|---|---|---|
| Sept 2025 | 22, HILLCREST AVENUE, NORTHAMPTON | semi-detached | £432,500 |
| Sept 2025 | HARVEST HOUSE, 11, CUMBERLAND CLOSE, NORTHAMPTON | semi-detached | £365,000 |
| Jun 2025 | 8, CUMBERLAND CLOSE, NORTHAMPTON | detached | £410,000 |
| Jun 2025 | 4, CUMBERLAND CLOSE, NORTHAMPTON | detached | £406,000 |
| May 2025 | 7, HILLCREST AVENUE, NORTHAMPTON | detached | £612,500 |
| Sept 2024 | 7, CUMBERLAND CLOSE, NORTHAMPTON | detached | £400,000 |
| Aug 2024 | 9, GREENFIELD AVENUE, NORTHAMPTON | terraced | £375,000 |
| Aug 2023 | 29, GREENFIELD AVENUE, NORTHAMPTON | semi-detached | £400,000 |
| Jul 2023 | 24, GREENFIELD AVENUE, NORTHAMPTON | semi-detached | £355,000 |
| Jun 2023 | 18, HILLCREST AVENUE, NORTHAMPTON | terraced | £380,000 |
| Apr 2023 | 2A, HILLCREST AVENUE, NORTHAMPTON | detached | £400,000 |
| Nov 2022 | 3, CUMBERLAND CLOSE, NORTHAMPTON | detached | £355,000 |
| Oct 2022 | HILLCREST RISING, 31B, GREENFIELD AVENUE, NORTHAMPTON | detached | £785,000 |
| Oct 2022 | 17, GREENFIELD AVENUE, NORTHAMPTON | semi-detached | £425,000 |
| Apr 2022 | 13, GREENFIELD AVENUE, NORTHAMPTON | semi-detached | £340,000 |
Crime in NN3
332 reported crimes within a 1-mile radius of the postcode centroid in 2026-05, from Police UK data.
Violent Crime
98
Anti Social Behaviour
72
Vehicle Crime
35
Shoplifting
29
Criminal Damage Arson
21
Energy performance
Aggregate EPC stats from 64 recently-certified properties in the NN3 area.
Sample size
64
Rating distribution
A
0
B
5
C
13
D
31
E
14
F
1
G
0
Area information
- Local authority
- North Northamptonshire, West Northamptonshire
- Country
- England
- Wards
- Abington & Phippsville, Billing, Blackthorn & Rectory Farm
- Constituency
- Daventry
- Latitude
- 52.2641
- Longitude
- -0.8423
More for NN3
Typical property
What the typical NN3 property looks like
Area summary, buyer notes, researched facts
Council tax
North Northamptonshire 2025/26 rates
All bands, monthly cost, discounts
Sold prices tool
Full transaction history for NN3
HM Land Registry from 1995
Corporate freeholders
Companies registered in NN3
Live Companies House data + PSCs
EPC checker
Look up any NN3 address
Energy ratings + improvement options
Crime checker
Local breakdown for NN3
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 NN3 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.