Areas/Postcode districts/SY20
Postcode district
SY20
2,333 domestic properties carry a SY20 postcode. Postcode districts don't line up with council boundaries — SY20 spans Powys, Gwynedd and Ceredigion, and this page counts all of them honestly rather than filing it under one authority.
Powys 62%
Gwynedd 27%
Ceredigion 11%
2,333properties matched to a UPRN
75%rated D or below on their current EPC
Emost common current energy band
3local authorities represented here
Energy performance
Where the stock sits today
SY20's current EPC mix, read directly from the certificates. Powys and the other authorities here have different profiles — the figures below are this district's blended total across all of them, not any single authority's own number.
A 1%
B 4%
C 20%
D 25%
E 25%
F 17%
G 9%
Distance from standard
51.5→81.3
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
2,333
Matched to a UPRN in the current release, out of a national total of 19,966,636.
Flood, heritage & conservation
Constraints on the ground
Three separate checks, kept separate on purpose — a property can sit in more than one at once. Powys and the other authorities here have different profiles — the figures below are this district's blended total across all of them, not any single authority's own number.
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231properties in flood zone 2 or 3
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378properties in a designated conservation area
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2,326properties 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, Wales-wide
The Welsh Index of Multiple Deprivation ranks every small area in Wales nationally, from 1 (most deprived) to 10 (least) — not directly comparable to England's own index, which uses different domains and weights.
19.1%households in fuel poverty (WHCS 2017-18 estimate)
14%of homes are social rented (Census 2021)
This figure is a property-weighted blend of the local-authority figures for the councils this district spans — the source data (2017-18) has no finer grain than a whole council area, so each property carries its own council's figure and the district shows the mix.
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 SY20 →UPRN 100023...EPC D → C
UPRN 100023...Flood zone 1
UPRN 100023...Conservation area
UPRN 100023...EPC E → D
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Other SY postcode districts
25 published