21 Kings Tower, Marconi Plaza, Chelmsford, CM1 1GS

21 Kings Tower is a two-bedroom mid-terrace house in Chelmsford (CM1 1GS). It has a recorded floor area of 65 m² (around 700 sq ft), construction records dating it to 2003-2006 and council tax band E. The latest certificate (December 2025) shows a C (score 80), near the top of the C band. The rating has held steady at C across 2 certificates since February 2016. Between certificates, hot-water efficiency went from Poor to Average, lighting went from Very Poor to Very Good and main heating went from Very Poor to Poor; while window efficiency dropped from Good to Average. The recommended improvements would push it to B (score 83). Main heating runs on electricity. This certificate was lodged in the last six months, so the rating reflects current condition. At 65 m² this is the 33rd smallest of 70 units on EPC record in the building, where floor areas span 36–202 m². The building's EPC ratings span D to B across 70 units on file. Other recorded features include a balcony. Our model identifies extension potential, subject to local planning policy.

On a £-per-square-foot basis, the last sale (£400/sq ft) was about 20.6% above the typical sold price in the postcode. Last changed hands 10 years ago, in March 2016.