12 The Square, Brill, Aylesbury, HP18 9RP

12 The Square is a two-bedroom mid-terrace house in Brill, Aylesbury, Aylesbury (HP18 9RP). It has a recorded floor area of 84 m² (around 904 sq ft), construction records dating it to before 1900 and council tax band D. It is a listed building, which means external alterations are tightly controlled but it may qualify for heritage tax reliefs. Period features are noted in the property record. Records show the property has been extended at some point in its history. The latest certificate (September 2014) shows an E (score 44), well below the UK norm with real room to improve. When first surveyed in November 2012 the rating was F, the property has climbed 1 band since. Between certificates, wall efficiency went from Very Poor to Poor, window efficiency went from Very Poor to Average and lighting went from Very Poor to Poor. The recommended improvements would lift it to C (score 77), a 2-band jump. Main heating runs on electricity. The latest certificate is from September 2014, so improvements made since then won't be reflected.

4 planning records sit against the property, 1 approved, 0 refused. Past consents include an extension and partial demolition, meaningful when judging how the property has evolved. The record references listed-building consent, which constrain future alterations. Last sold in July 2017, so it's been off the market for around 9 years. Across the public record there are 4 sales, relatively high churn for a single property. Across 2013–2017, sale prices on this property compounded at 14.6% per year. Today's modelled estimate of £508,000 is 16.8% above the 2017 sale price. On a £-per-square-foot basis, the last sale (£481/sq ft) was about 51.4% above the typical sold price in the postcode.