173a, Hatfield Road, St Albans, AL1 4LG

173a is a detached house in St Albans (AL1 4LG). It has a recorded floor area of 98 m² (around 1055 sq ft), construction records dating it to 1900-1929 and council tax band C. At 98 m² this is the largest unit on EPC record across the building (29–98 m²). The building's EPC ratings span F to B across 22 units on file. The latest certificate (July 2025) shows a D (score 64), on the cusp of jumping into the C band. When first surveyed in September 2009 the rating was E, the property has climbed 1 band since. Between certificates, roof efficiency went from Very Poor to Good and lighting went from Average to Very Good. The recommended improvements would push it to C (score 74).

Today's modelled estimate of £405,000 is 49.4% below the 2025 sale of £800,000, below the original sale price, which typically signals condition or completion-status changes worth verifying. On a £-per-square-foot basis, the last sale (£758/sq ft) was about 92.5% above the typical sold price in the postcode. At 98 m² the property is well over the postcode median (51 m² across 21 EPCs), placing it in the larger end of the local stock. It lags the bulk of the postcode on energy efficiency (less efficient than 81% of similar EPCs). It changed hands recently, sold December 2025 for £800,000.