LL20 area guide
House prices, recent sales, crime and schools for the LL20 postcode district in Denbighshire. Free to read, from official open data. For one address in detail, run a full property report.
Denbighshire · 2026-07 (UK HPI)
Median £254,975
Street-level crime at the district centre
Ofsted rated, within one mile
What the data says about LL20
The average home across Denbighshire is worth about £201,452 (UK House Price Index, 2026-07), and the median of the 6 most recent Land Registry sales recorded inside LL20 is £254,975, and prices have risen 3.6% over the last year.
Of 280 energy certificates sampled across 12 postcodes in LL20, band D is the most common, and 61.1% of homes sit below band C — the point at which most lenders' green mortgage deals and future rental rules bite.
Police recorded 174 crimes around the centre of LL20 in the six months to 2026-07, most often violence and sexual offences (56).
There are 0 schools rated Good or Outstanding by Ofsted within a mile of LL20 in Denbighshire.
The district covers the Alyn Valley, Cefn West, Chirk South, Dyffryn Ceiriog ward areas.
Sample of 280 energy certificates from 12 postcodes in LL20, taken from the government energy performance register, most recent lodged 2026. Indicative of the district rather than a full census.
Prices changed +3.6% over the last year in Denbighshire.
Street-level crime from data.police.uk, six months to 2026-07.
Alyn Valley · Cefn West · Chirk South · Dyffryn Ceiriog · Llangollen · Llangollen Rural
Common questions about LL20
What is the average house price in LL20?
The UK House Price Index puts the average home in Denbighshire at £201,452 as of 2026-07. Recent Land Registry sales recorded inside the LL20 district have a median price of £254,975.
How much does each property type cost in LL20?
Detached £269,548, semi-detached £184,329, terraced £149,418, flats £95,829, based on the UK House Price Index for Denbighshire.
Is LL20 a safe area?
Police recorded 174 crimes near the centre of LL20 in the six months to 2026-07. The most common category was violence and sexual offences with 56 reports. Crime is recorded at street level, so figures vary street to street within the same district.
What EPC rating do homes in LL20 usually have?
Band D is the most common rating in our sample of 280 certificates from LL20, with 61.1% of homes rated below band C. A full property report shows the exact certificate, running costs and recommended improvements for one address.
What are the schools like near LL20?
0 schools within a mile of the LL20 district centre are rated Good or Outstanding by Ofsted. Catchment areas are set by the local authority and can change year to year.
Where does this LL20 data come from?
HM Land Registry Price Paid Data and the UK House Price Index for prices, the government's energy performance register for EPC bands, data.police.uk for crime, Get Information About Schools and Ofsted for schools, and ONS postcode geography. All are published under the Open Government Licence v3.0.
A full report covers the energy certificate, sale history and valuation, council tax band and bill, flood and crime risk, schools, transport and neighbourhood data for a single property.
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Sources: HM Land Registry Price Paid Data and UK House Price Index, ONS postcode geography, data.police.uk, Get Information About Schools and Ofsted. Contains public sector information licensed under the Open Government Licence v3.0.