Penn Cottage, Hackmans Lane, Cock Clarks, Chelmsford, CM3 6RE

Penn Cottage is a three-bedroom detached house in Cock Clarks, Chelmsford, Chelmsford (CM3 6RE). It has a recorded floor area of 79 m² (around 850 sq ft) and construction records dating it to 1976-1982. It is a listed building, which means external alterations are tightly controlled but it may qualify for heritage tax reliefs. Records show the property has been extended at some point in its history. The latest certificate (June 2014) shows a G (score 12), near the bottom of the EPC scale. The recommended improvements would lift it to C (score 70), a 4-band jump. Main heating runs on electricity. The latest certificate is from June 2014, so improvements made since then won't be reflected.

Across 2000–2023, sale prices on this property compounded at 13% per year. Today's modelled estimate of £557,000 is 13% below the 2023 sale of £640,000, an unusual pattern given regional price growth and worth checking against the EPC condition. On a £-per-square-foot basis, the last sale (£753/sq ft) was about 157.7% above the typical sold price in the postcode. At 79 m² it sits well below the postcode median (146 m² across 22 EPCs), making it one of the more compact homes locally. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Most recent transfer: March 2023 at £640,000. Across the public record there are 5 sales, relatively high churn for a single property. 10 planning records sit against the property, 7 approved, 2 refused. Past consents include an extension, a garage conversion and tree works, meaningful when judging how the property has evolved.