CM1 3DT is a postcode on The Green in Chelmsford, Essex. Over the last five years, 9 properties have changed hands in this postcode, with an average sale price of £1,021,111. Prices have ranged from £312,500 to £1,425,000. The most recent recorded sale was in November 2025. The housing stock here is predominantly Detached (43%) and Terraced (38%) .

According to the 2019 English Index of Multiple Deprivation, the neighbourhood around CM1 3DT is among the least deprived 20% of neighbourhoods in England (decile 10 out of 10, ranked 31,096 nationally). The area benefits from lower than average crime levels (crime deprivation decile 8). Within a quarter of a mile, 11 crimes have been recorded in the dataset, with Shoplifting being the most reported category. There are 4 schools within one mile, with the nearest being Writtle Infant School. The area scores well above average for education and skills (education decile 9).