6 Brownswood Road is a four-bedroom detached house in Beaconsfield (HP9 2NU). It has a recorded floor area of 424 m² (around 4564 sq ft), construction records dating it to 1930-1949 and council tax band A. There is a swimming pool on the plot, uncommon for the area. The latest certificate (June 2019) returns a high B (score 85), putting the home a stone's throw from an A rating. When first surveyed in May 2009 the rating was F, the property has climbed 4 bands since. Between certificates, wall efficiency went from Poor to Very Good, roof efficiency went from Average to Good and window efficiency went from Average to Good.
Untraded for 17 years, with the last transfer in October 2009. That sale fell during the post-crash dip, which often skews comparisons against later neighbouring sales. Sale prices here have outpaced England HPI: 7.4% per year against 0% for the wider region. Today's modelled estimate of £3,530,000 sits 173.6% above the 2009 sale of £1,290,000. On a £-per-square-foot basis, the last sale (£283/sq ft) was about 36.5% below the postcode norm. At 424 m² the property is well over the postcode median (270 m² across 16 EPCs), placing it in the larger end of the local stock. Its energy rating outperforms most of the postcode (better than 81% of similar EPCs). One historical planning record sits against the property in 2010.
Achieving this rating across a home of this size is uncommon — larger homes typically score lower.
Variation of Condition 1 of planning permission 10/01014/FUL to allow an amended design in the form of an infill extension
6 Brownswood Road has more than doubled in price since the earliest registered sale in 1998.
£3,530,000
Modelled from EPC, postcode comparables and a sale-price growth of 7.4% per year over 12 years.
£1,290,000
Growth on file: 7.4% per year over 12 years.
Everything we know about this property, compiled into one in-depth, downloadable report.
Detailed analysis
A written breakdown of everything that matters
On price per m², 6 Brownswood Road runs well behind the street norm.
Price per m²
£3,042
Street avg £6,452
Floor Area
424 m²
Street avg 288 m²
CO₂ Emissions
5.6 t/year
Rail-style transport is unusually close for this postcode.
Crime
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Sandleswood End H&R — bus stop.

Daytime· 07:00 – 23:00
46.3dB

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Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Hot water efficiency improved
Window efficiency improved
Cavity wall insulation installed
Roof insulation improved
Floor insulation added or improved
More low energy lighting installed
Full planning data for 6 Brownswood Road, Beaconsfield, HP9 2NU
Every application and decision on this property and nearby, in full, in the report.
28 October 2009Most recent
£1,290,000
+129.9%over 11 years27 February 1998
£561,000
Median price across the last 5 sales in HP9 2NU: £1,950,000 (2025–2023).
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 7.8 t/year
Years Held
17 years
Street avg 8 years
HP9 2NP
Closest school
1.0 km
St Mary and All Saints CofE Primary School. 6 schools nearby.
Night-time· 23:00 – 07:00
37.7dB