Key indicators for buyers
The CM21 market is moderately favourable for buyers. Prices have softened (-38.7%), which could present a buying opportunity. Affordability has improved from a peak of 13.0x in 2017 to 10.7x today. Rising rents (£1,505/mo, +6.1%) mean the cost of waiting is real.
Yearly averages · HM Land Registry Price Paid Data
2026averages · HM Land Registry Price Paid Data
House price ÷ median earnings · ONS data
Affordability data shown for wider East Hertfordshire area
A home in East Hertfordshire costs 10.7x the local median salary — very stretched, improving from a peak of 13.0x in 2017.
Average monthly rent · ONS Private Rental Index
Rental data shown for wider East Hertfordshire area
Average monthly rent in East Hertfordshire is £1,505, up 6.1% year-on-year. Rents have risen consistently over the past five years.
2yr fixed · 75% LTV · 25yr term · BoE avg. rate
Based on the average East Hertfordshire price of £295,000 with a 25% deposit (£74k), a 2-year fixed mortgage at 3.97% costs around £1,164 per month.
Monthly cost comparison based on current data
Uses CM21 avg. price with East Hertfordshire rental data
Monthly mortgage payments (£1,164) are £341 less than renting (£1,505). However, buying requires an upfront deposit of £74k — it would take around 6 years to recoup that cost compared to renting and investing the difference.
Latest transactions · HM Land Registry Price Paid Data
| Address | Type | Price | Date |
|---|---|---|---|
84, LONDON ROAD CM21 9JN | Terraced | £310,000 | 9 Jan 2026 |
53, NURSERY FIELDS CM21 0DH | Flat/Maisonette | £280,000 | 6 Jan 2026 |
73, LONDON ROAD CM21 9JJ | Terraced | £287,500 | 18 Dec 2025 |
23, GILDERS CM21 0EE | Semi-detached | £540,000 | 16 Dec 2025 |
1, KINGS HEAD COURT, LONDON ROAD CM21 9JT | Flat/Maisonette | £300,000 | 15 Dec 2025 |
5, CEDAR CLOSE CM21 9NT | Detached | £512,000 | 15 Dec 2025 |
47, LEAT CLOSE CM21 9LZ | Semi-detached |
Data sources (all free & public): HM Land Registry Price Paid Data & UK House Price Index · ONS Housing Affordability Ratios · ONS Private Rental Index · Bank of England Quoted Household Interest Rates · HMRC Monthly Property Transactions
Contains HM Land Registry data © Crown copyright and database right 2021. This data is licensed under the Open Government Licence v3.0.
The average property in CM21 sold for £295,000 in 2026, with a median of £295,000 across 2 transactions. Prices fell 38.7% compared to the previous year.
| £510,000 |
| 12 Dec 2025 |
FLAT 63, WATERSIDE PLACE, SHEERING LOWER ROAD CM21 9RF | Flat/Maisonette | £170,000 | 8 Dec 2025 |
5, THE SMITHY CM21 9JL | Terraced | £410,000 | 5 Dec 2025 |
20, LAWRENCE MOORINGS CM21 9PE | Flat/Maisonette | £225,500 | 5 Dec 2025 |
FLAT 6, PRIORS COURT, THE MALTINGS CM21 9RB | Flat/Maisonette | £220,000 | 5 Dec 2025 |
13, ATHERTON END CM21 0BS | Semi-detached | £480,000 | 5 Dec 2025 |
41, LAWRENCE AVENUE CM21 9DN | Terraced | £375,000 | 2 Dec 2025 |
1, ALEXANDER COTTAGES, HIGH WYCH CM21 0JX | Semi-detached | £481,000 | 28 Nov 2025 |
93, WHITE POST FIELD CM21 0BY | Terraced | £325,000 | 28 Nov 2025 |
51, BURNSIDE CM21 0EP | Semi-detached | £480,000 | 27 Nov 2025 |
41, STATION ROAD CM21 9JY | Detached | £750,000 | 27 Nov 2025 |
42, SCHOOL LANE CM21 9FA | Detached | £850,000 | 27 Nov 2025 |
127, SHEERING LOWER ROAD CM21 9LQ | Detached | £622,500 | 21 Nov 2025 |
5, THE GABLES CM21 9QL | Flat/Maisonette | £129,000 | 21 Nov 2025 |
The most recent recorded sale in CM21 was a terraced property on London Road for £310,000 in January 2026. Across the last 20 sales, the median price was £410,000.