4 Red House Close is a four-bedroom detached house in Knotty Green, Beaconsfield, Beaconsfield (HP9 1XU). It has a recorded floor area of 198 m² (around 2131 sq ft), construction records dating it to 1983-1990 and council tax band G. The latest certificate (July 2020) shows a D (score 66), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since June 2010. Between certificates, roof efficiency went from Average to Good and lighting went from Very Poor to Very Good; while window efficiency dropped from Good to Average. The recommended improvements would push it to C (score 75). The home occupies a cul-de-sac position.
Sale prices here have outpaced England HPI: 3.4% per year against 0% for the wider region. Today's modelled estimate of £1,249,000 is 18.4% above the 2020 sale price. On a £-per-square-foot basis, the last sale (£495/sq ft) was about 41.2% above the typical sold price in the postcode. At 198 m² it's 22.2% larger than the typical home in the postcode (162 m² median across 6 EPCs). 3 planning records sit against the property, 0 approved, 1 refused. Last sale on file: £1,055,000 in November 2020.
4 Red House Close's carbon output runs well above what efficient homes in the postcode produce.
A new windows application was refused at 4 Red House Close in 2022.
Extension: Single storey
Single storey front extension, part garage conversion, alterations to rear extension, porch canopy, additional side windows and front and side rooflights. (Part-Retrospective amendment to PL/21/0802/FA)
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£1,249,000
Modelled from EPC, postcode comparables and a sale-price growth of 3.4% per year over 16 years.
£1,055,000
Growth on file: 3.4% per year over 16 years.
Everything we know about this property, compiled into one in-depth, downloadable report.
Detailed analysis
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On habitable rooms, 4 Red House Close stands well clear of the street.
Price per m²
£5,328
Street avg £5,692
Floor Area
198 m²
Street avg 212 m²
Habitable Rooms
8 rooms
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
Roof insulation improved
More low energy lighting installed
Certificate of Lawfulness for proposed insertion of two ground floor windows into side elevation of existing dwelling
Full planning data for 4 Red House Close, Knotty Green, Beaconsfield, HP9 1XU
1 more on this property, plus every nearby application and full decision details, in the report.
16 November 2020Most recent
£1,055,000
+74.7%over 16 years4 June 2004
£604,000
Median price across the last 5 sales in HP9 1XU: £990,000 (2024–2012).
10 Red House Close Knotty Green Beaconsfield
Sold Jul 2024
12 Red House Close Knotty Green Beaconsfield
Sold Jan 2021
2 Red House Close Knotty Green Beaconsfield
Sold Jan 2017
6 Red House Close Knotty Green Beaconsfield
Sold Dec 2015
19 Red House Close Knotty Green Beaconsfield
Sold Sept 2012
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 rooms
CO₂ Emissions
7.4 t/year
Street avg 6.0 t/year
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