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 £587,321 (median £492,500), based on 168 HM Land Registry transactions. Police UK recorded 58 crimes within a 1-mile radius in 2026-05.
Headline pricing in CM21 is above the UK national average (England & Wales average ~£290k as of 2025). Stock is dominated by detached properties (115 of the last 168 sales).
Avg sale price
£587,321
168 sales
Median price
£492,500
Crime incidents
58
2026-05
Avg EPC score
n/a
102 certs
Recent sold prices
Latest 30 property sales in the CM21 area, sourced from HM Land Registry Price Paid Data.
detached
£705,163
115 sales
flat-maisonette
£227,533
29 sales
semi-detached
£456,200
21 sales
terraced
£432,500
1 sales
| Date | Address | Type | Price |
|---|---|---|---|
| May 2026 | 9, ORCHARD LEA, SAWBRIDGEWORTH | flat-maisonette | £147,000 |
| Oct 2025 | 20, ORCHARD LEA, SAWBRIDGEWORTH | flat-maisonette | £160,000 |
| Jul 2025 | 46, PISHIOBURY DRIVE, SAWBRIDGEWORTH | detached | £2,775,000 |
| May 2025 | 28, PISHIOBURY DRIVE, SAWBRIDGEWORTH | detached | £1,620,000 |
| Mar 2025 | 23, PISHIOBURY DRIVE, SAWBRIDGEWORTH | detached | £1,000,000 |
| Mar 2025 | 10, ORCHARD LEA, SAWBRIDGEWORTH | flat-maisonette | £250,000 |
| Feb 2025 | 40, PISHIOBURY DRIVE, SAWBRIDGEWORTH | detached | £1,012,000 |
| 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 |
| May 2024 | 4, PISHIOBURY DRIVE, SAWBRIDGEWORTH | detached | £1,450,000 |
| Sept 2023 | 12, PISHIOBURY DRIVE, SAWBRIDGEWORTH | detached | £1,020,000 |
| Jul 2023 | 1, ROWNEY COTTAGES, SAWBRIDGEWORTH | semi-detached | £900,000 |
| May 2023 | 12, HAMPTON GARDENS, SAWBRIDGEWORTH | detached | £650,000 |
Crime in CM21
58 reported crimes within a 1-mile radius of the postcode centroid in 2026-05, from Police UK data.
Violent Crime
21
Anti Social Behaviour
15
Vehicle Crime
5
Public Order
4
Other Crime
4
Energy performance
Aggregate EPC stats from 102 recently-certified properties in the CM21 area.
Sample size
102
Rating distribution
A
1
B
7
C
27
D
58
E
9
F
0
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
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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.