153 Watling Street West, Towcester, NN12 6BX

153 Watling Street West is a four-bedroom semi-detached house in Towcester (NN12 6BX). It has a recorded floor area of 162 m² (around 1744 sq ft), construction records dating it to before 1900 and council tax band E. It is a listed building, which means external alterations are tightly controlled but it may qualify for heritage tax reliefs. The latest certificate (October 2016) shows an E (score 48), well below the UK norm with real room to improve. When first surveyed in May 2016 the rating was F, the property has climbed 1 band since. Between certificates, roof efficiency went from Very Poor to Good, window efficiency went from Poor to Average and hot-water efficiency went from Average to Good. The recommended improvements would lift it to B (score 83), a 3-band jump.

At 162 m² the property is well over the postcode median (72 m² across 12 EPCs), placing it in the larger end of the local stock. Across 2003–2017, sale prices on this property compounded at 3% per year. Today's modelled estimate of £460,000 is 35.3% above the 2017 sale price. On a £-per-square-foot basis, the last sale (£195/sq ft) was about 36.8% below the postcode norm. On the market in January 2017 and unlisted since — roughly 9 years.