CM21 Postcode Data
Property data for the CM21 postcode district covering East Hertfordshire. Sold prices, crime statistics, energy performance, and demographic insights, all from HM Land Registry, Police UK, and the EPC Register.
Quick answer
The average sale price in CM21 is £524,715 (median £427,500), based on 139 HM Land Registry transactions. Police UK recorded 55 crimes within a 1-mile radius in 2026-07.
Headline pricing in CM21 is above the UK national average (England & Wales average ~£290k as of 2025). Stock is dominated by detached properties (86 of the last 139 sales).
Avg sale price
£524,715
139 sales
Median price
£427,500
Crime incidents
55
2026-07
Avg EPC score
n/a
128 certs
Recent sold prices
Latest 30 property sales in the CM21 area, sourced from HM Land Registry Price Paid Data.
detached
£643,759
86 sales
flat-maisonette
£227,395
29 sales
semi-detached
£456,200
21 sales
terraced
£432,500
1 sales
| Date | Address | Type | Price |
|---|---|---|---|
| Jul 2026 | 11, ORCHARD LEA, SAWBRIDGEWORTH | flat-maisonette | £195,000 |
| May 2026 | 9, ORCHARD LEA, SAWBRIDGEWORTH | flat-maisonette | £147,000 |
| Oct 2025 | 20, ORCHARD LEA, SAWBRIDGEWORTH | flat-maisonette | £160,000 |
| Sept 2025 | TUDOR MANOR, 11, PISHIOBURY DRIVE, SAWBRIDGEWORTH | detached | £2,325,000 |
| Mar 2025 | 23, PISHIOBURY DRIVE, SAWBRIDGEWORTH | detached | £1,000,000 |
| Mar 2025 | 10, ORCHARD LEA, SAWBRIDGEWORTH | flat-maisonette | £250,000 |
| Feb 2025 | 8, ORCHARD LEA, SAWBRIDGEWORTH | flat-maisonette | £225,000 |
| Jun 2024 | 12, ORCHARD LEA, SAWBRIDGEWORTH | flat-maisonette | £220,000 |
| Jun 2024 | 5, ORCHARD LEA, SAWBRIDGEWORTH | flat-maisonette | £235,000 |
| Jun 2024 | 11, BEECH DRIVE, SAWBRIDGEWORTH | detached | £675,000 |
| Jul 2023 | 1, ROWNEY COTTAGES, SAWBRIDGEWORTH | semi-detached | £900,000 |
| May 2023 | 12, HAMPTON GARDENS, SAWBRIDGEWORTH | detached | £650,000 |
| May 2023 | 15, ORCHARD LEA, SAWBRIDGEWORTH | flat-maisonette | £220,000 |
| May 2023 | CARINTHIA, HARLOW ROAD, SAWBRIDGEWORTH | detached | £685,000 |
| Dec 2022 | 18, ORCHARD LEA, SAWBRIDGEWORTH | flat-maisonette | £225,000 |
Crime in CM21
55 reported crimes within a 1-mile radius of the postcode centroid in 2026-07, from Police UK data.
Violent Crime
19
Anti Social Behaviour
12
Vehicle Crime
9
Criminal Damage Arson
5
Other Theft
3
Energy performance
Aggregate EPC stats from 128 recently-certified properties in the CM21 area.
Sample size
128
Rating distribution
A
1
B
7
C
30
D
70
E
18
F
2
G
0
Area information
- Local authority
- East Hertfordshire, Epping Forest
- Country
- England
- Wards
- Much Hadham, Rural East, Sawbridgeworth
- Constituency
- Harlow
- Latitude
- 51.8125
- Longitude
- 0.1451
More for CM21
Typical property
What the typical CM21 property looks like
Area summary, buyer notes, researched facts
Sold prices tool
Full transaction history for CM21
HM Land Registry from 1995
Corporate freeholders
Companies registered in CM21
Live Companies House data + PSCs
EPC checker
Look up any CM21 address
Energy ratings + improvement options
Crime checker
Local breakdown for CM21
Police UK monthly data
Want a full property report?
Get an AI-powered report for any specific CM21 address. Valuation, flood risk, planning history, schools and more.
Get a Property ReportData sources & methodology
Sold prices: HM Land Registry Price Paid Data, the official UK government records updated monthly. Sample uses the 30 most recent registered transactions in the postcode area.
Crime: Police UK street-level crime data, covering a 1-mile radius from the CM21 postcode centroid for the most recent month available (typically 2 months behind). For Scottish postcodes we use Police Scotland recorded-crime counts published by the Scottish Government (2024-25), reported by council area.
EPC: opendatacommunities.org, the official Energy Performance Certificate register for England and Wales. Aggregate stats from up to 30 most recent certificates in the postcode. For Scottish postcodes we use Scottish EPC Register lodgements, aggregated to a council-level band distribution (Q2 2025 to Q1 2026). For Northern Ireland we use the NISRA Census 2021 EPC-band classification of every household, aggregated by council (Census 2021).
Area data: postcodes.io, open data from the Office for National Statistics.