Guinea Pig Hall, Brighton Road, Lower Kingswood, Tadworth, KT20 6SX

Guinea Pig Hall is a three-bedroom semi-detached house in Lower Kingswood, Tadworth, Tadworth (KT20 6SX). It has a recorded floor area of 78 m² (around 840 sq ft), construction records dating it to 1930-1949 and council tax band D. Tenure is freehold. The latest certificate (February 2017) shows an F (score 25), near the bottom of the EPC scale. The rating has held steady at F across 2 certificates since September 2015. Between certificates, window efficiency went from Average to Good and lighting went from Very Poor to Very Good; while hot-water efficiency dropped from Average to Poor. The recommended improvements would lift it to C (score 74), a 3-band jump. Other recorded features include a conservatory. The home occupies a corner plot.

At 78 m² it's 27.8% smaller than the typical home in the postcode (108 m² median across 13 EPCs). On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Today's modelled estimate of £525,000 is 22.1% above the 2016 sale price. On a £-per-square-foot basis, the last sale (£512/sq ft) was about 102.9% above the typical sold price in the postcode. Last changed hands 10 years ago, in June 2016.