The typical property in CM20
CM20 covers central Harlow including the town centre, Harlow Town station and the Princess Alexandra Hospital.
Area summary
CM20 sits in Harlow District Council. The outcode covers central Harlow, Harlow Mill, Old Harlow north and the Princess Alexandra Hospital. Housing is dominated by postwar new town stock with some pockets of older village stock in Harlow Mill and newer development.
Harlow Town station sits in CM20 and provides direct services to London Liverpool Street in around 30 minutes. Harlow Mill station is also in the outcode. The M11 at junction 7 provides motorway access.
Employment is dominated by the Princess Alexandra Hospital, the council and commuting into London. Harlow Science Park is being developed adjacent to GlaxoSmithKline's site at Stanstead Abbots.
Harlow District operates additional HMO licensing in defined areas. The Renters' Rights Act 2026 has abolished Section 21 evictions.
What the data shows
Researched facts
Buyer notes
- Direct rail to London is a major value driver
- Hospital and Science Park employment drives rental demand
- New town housing has variable EPC profiles
The full CM20 data page
Sold price history, crime totals, EPC distribution, council tax bands and more, pulled live from HM Land Registry, Police UK and the EPC Register.
CM20 property dataNearby CM postcode districts
Compare CM20 with adjacent areas in the same postcode district.