Cost of Living in CM21
East Hertfordshire
CM21 at a glance
Postcode district (CM21)Figures describe the CM21 postcode district as a whole — a guide to the area, not a valuation of any one home. Prices from HM Land Registry; council tax is an estimate (verify your exact band below). 2026/27 estimate using the East Hertfordshire average Band D rate published by MHCLG and an estimated band. Parish charges, discounts and premiums can change your bill.
House prices in CM21
Postcode district (CM21)Median sale price over the last five years by property type, with how each compares to the national median.
| Property type | Median price | Sales (5y) | vs national |
|---|---|---|---|
| Detached | £661,275 | 325 | +£246k |
| Semi-detached | £485,000 | 282 | +£225k |
| Terraced | £380,000 | 162 | +£160k |
| Flat | £225,000 | 221 | −£5k |
Source: HM Land Registry Price Paid Data (OGL v3.0).
Council tax in CM21
Council-tax band is an estimate, not a verified per-address figure. Check the exact band on GOV.UK.
Affordability & area context
Postcode district (CM21)CM21 sits at an average deprivation decile of 8.4 out of 10 (among the least deprived areas in England), based on the 7 neighbourhoods (LSOAs) it covers in the English Indices of Deprivation 2025. Homes here typically sell for 86% more than the national median.