Areas/Postcode districts/NN4
Postcode district
NN4
15,834 domestic properties carry a NN4 postcode, all within West Northamptonshire.
15,834properties matched to a UPRN
38%rated D or below on their current EPC
Cmost common current energy band
1local authority
Energy performance
Where the stock sits today
NN4's current EPC mix, read directly from the certificates.
A 1%
B 18%
C 42%
D 33%
E 5%
F 0%
G 0%
Distance from standard
70.6→83.4
Average current efficiency score against average potential score, on the certificate's own SAP scale. The gap is what a certificate's own recommendations are already aimed at closing — a reading of the certificates as issued, not a projection.
Properties matched
15,834
Matched to a UPRN in the current release, out of a national total of 19,274,677.
Flood, heritage & conservation
Constraints on the ground
Three separate checks, kept separate on purpose — a property can sit in more than one at once.
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1,546properties in flood zone 2 or 3
▦
273properties in a designated conservation area
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15,834properties within roughly 2.2km of a listed building
A proximity signal, not a listed-status check — this counts nearby listed buildings, not properties confirmed to be listed themselves.
Deprivation & fuel poverty
Neighbourhood context, England-wide
The English Indices of Deprivation rank every small area nationally, from 1 (most deprived) to 10 (least). Here's how this area's neighbourhoods sit against the rest of England.
6.6%households in fuel poverty (DESNZ sub-regional estimate)
12%of homes are social rented (Census 2021)
This is the aggregate picture. Every property behind it has its own record.
Certificate history, exact flood zone, planning constraints, deprivation and tenure — matched to the UPRN and searchable one property at a time inside CrierData.
Search properties in NN4 →UPRN 100023...EPC D → C
UPRN 100023...Flood zone 1
UPRN 100023...Conservation area
UPRN 100023...EPC E → D
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Other NN postcode districts
19 published