23 Seymour Street, Cambridge, CB1 3DH

23 Seymour Street is a three-bedroom semi-detached house in Cambridge (CB1 3DH). It has a recorded floor area of 80 m² (around 861 sq ft), construction records dating it to before 1900 and council tax band D. The latest certificate (March 2026) shows a D (score 64), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since June 2009. Between certificates, lighting went from Poor to Good; while roof efficiency dropped from Very Good to Good and window efficiency dropped from Good to Poor. The recommended improvements would push it to C (score 76). This certificate was lodged in the last six months, so the rating reflects current condition.

At 80 m² the property is well over the postcode median (49 m² across 29 EPCs), placing it in the larger end of the local stock. Across 2007–2017, sale prices on this property compounded at 3.6% per year. Today's modelled estimate of £559,000 is 24.2% above the 2017 sale price. On a £-per-square-foot basis, the last sale (£523/sq ft) was about 28.6% above the typical sold price in the postcode. On the market in September 2017 and unlisted since — roughly 9 years.