19 Red House Close is a four-bedroom detached house in Knotty Green, Beaconsfield, Beaconsfield (HP9 1XU). It has a recorded floor area of 290 m² (around 3122 sq ft) and construction records dating it to 1967-1975. The latest certificate (October 2015) returns a B (score 82), comfortably above the UK average. When first surveyed in April 2010 the rating was E, the property has climbed 3 bands since. Between certificates, wall efficiency went from Poor to Very Good, roof efficiency went from Average to Good and window efficiency went from Poor to Very Good. The latest certificate is from October 2015, so improvements made since then won't be reflected. Other recorded features include notable views and a conservatory.
Sale prices here have outpaced England HPI: 6.2% per year against 0% for the wider region. Today's modelled estimate of £1,949,000 sits 110.7% above the 2012 sale of £925,000. On a £-per-square-foot basis, the last sale (£296/sq ft) was about 40.1% below the postcode norm. At 290 m² the property is well over the postcode median (162 m² across 6 EPCs), placing it in the larger end of the local stock. On energy efficiency it sits in the top 10% of properties in this postcode. Last changed hands 14 years ago, in September 2012. 3 planning records sit against the property, 0 approved, 0 refused.
19 Red House Close ranks among the most efficient homes in the postcode for energy use.
This certificate is over 10 years old and is no longer valid.Expired 28 Oct 2025
Erection of replacement dwelling
Sale price has at least doubled since 1997.
£1,949,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.2% per year over 15 years.
£925,000
Growth on file: 6.2% per year over 15 years.
Everything we know about this property, compiled into one in-depth, downloadable report.
Detailed analysis
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EPC Rating for 19 Red House Close runs comfortably ahead of the street norm.
Price per m²
£3,190
Street avg £6,049
Floor Area
290 m²
Street avg 196 m²
CO₂ Emissions
4.2 t/year
Daytime road noise here sits well below conversation level — a quiet pocket of the postcode.
Crime
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.3 km

Daytime· 07:00 – 23:00
45.8dB

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Changes detected from historical EPC data
Heating controls upgraded for better temperature management
High performance glazing installed
Cavity wall insulation installed
Roof insulation improved
Floor insulation added or improved
Erection of replacement dwelling
Full planning data for 19 Red House Close, Knotty Green, Beaconsfield, HP9 1XU
1 more on this property, plus every nearby application and full decision details, in the report.
25 September 2012Most recent
£925,000
+146.7%over 14 years24 October 1997
£375,000
Median price across the last 5 sales in HP9 1XU: £1,055,000 (2024–2015).
10 Red House Close Knotty Green Beaconsfield
Sold Jul 2024
12 Red House Close Knotty Green Beaconsfield
Sold Jan 2021
4 Red House Close Knotty Green Beaconsfield
Sold Nov 2020
2 Red House Close Knotty Green Beaconsfield
Sold Jan 2017
6 Red House Close Knotty Green Beaconsfield
Sold Dec 2015
Detailed EPC data
Full energy ratings, history and recommendations
Full planning history
Every application and decision on record
Comparable sales data
Plus transport, crime, schools and air quality
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Street avg 6.6 t/year
Years Held
14 years
Street avg 8 years
HP9 1XZ
Village Centre — bus stop.
Closest school
1.6 km
Holtspur School & Pre-School. 6 schools nearby.
Night-time· 23:00 – 07:00
37.1dB