Tewin Water House, Apartment 1, Tewin Water, Welwyn, AL6 0AA

Tewin Water House is a six-bedroom end-of-terrace house in Welwyn (AL6 0AA). It has a recorded floor area of 588 m² (around 6329 sq ft), construction records dating it to before 1900 and council tax band H. There is a swimming pool on the plot, uncommon for the area. Other recorded features include attached land beyond the plot. Period features are noted in the property record. The latest certificate (May 2025) shows a D (score 58), a step below the typical UK home. The recommended improvements would lift it to B (score 81), a 2-band jump.

It hasn't traded since August 2001, a hold of 25 years that's notably long for the area. At 588 m² the property is well over the postcode median (189 m² across 4 EPCs), placing it in the larger end of the local stock. 6 bedrooms is on the larger side for this postcode, where 2 is the typical count. Today's modelled estimate of £2,428,000 sits 176.9% above the 2001 sale of £877,000. On a £-per-square-foot basis, the last sale (£139/sq ft) was about 50.2% below the postcode norm.