4 Aston House is a semi-detached house in Knotty Green, Beaconsfield, Beaconsfield (HP9 2TS). It has a recorded floor area of 103 m² (around 1104 sq ft), construction records dating it to 2003-2006 and council tax band F. At 103 m² this is the 5th smallest of 6 units on EPC record in the building, where floor areas span 89–159 m². The building's EPC ratings span C to B, with this unit at the bottom. The latest certificate (April 2009) shows a C (score 77), near the top of the C band. The recommended improvements would push it to B (score 81). The latest certificate is from April 2009, so improvements made since then won't be reflected.
Held since November 2009 — that's 17 years off the open market, well above the local norm. That sale fell during the post-crash dip, which often skews comparisons against later neighbouring sales. Sale prices here have lagged England HPI: -3.3% per year against 0% for the wider region. Today's modelled estimate of £618,000 is 30.1% above the 2009 sale price. On a £-per-square-foot basis, the last sale (£430/sq ft) was about 20.3% below the postcode norm. At 103 m² it's 28.5% smaller than the typical home in the postcode (144 m² median across 14 EPCs). It lags the bulk of the postcode on energy efficiency (less efficient than 71% of similar EPCs). 5 planning records sit against the property, 0 approved, 3 refused.
4 Aston House's EPC is over a decade old — improvements since won't be reflected.
This certificate is over 10 years old and is no longer valid.Expired 08 Apr 2019
REDEVELOPMENT OF SITE TO PROVIDE A THREE STOREY BUILDING COMPRISING SIX FLATS TOGETHER WITH TWO DETACHED TRIPLE GARAGES SERVED BY NEW VEHICULAR ACCESS ONTO PENN ROAD (AMENDMENT TO PLANNING PERMISSION 03/0064/CH)
The latest sale fell during the post-2008 dip, often a low-water mark in price comparisons.
£618,000
Modelled from EPC, postcode comparables and a sale-price growth of -3.3% per year over 4 years.
£475,000
Growth on file: -3.3% per year over 4 years.
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4 Aston House is notably below the street on price per m².
Price per m²
£4,630
Street avg £6,154
Floor Area
103 m²
Street avg 153 m²
Habitable Rooms
3 rooms
Street avg 4 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
0.2 km

Daytime· 07:00 – 23:00
45.2dB

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REDEVELOPMENT OF SITE TO PROVIDE A THREE STOREY BUILDING COMPRISING SIX FLATS TOGETHER WITH TWO DETACHED TRIPLE GARAGES SERVED BY NEW VEHICULAR ACCESS FROM PENN ROAD (AMENDMENT TO PLANNING PERMISSION 03/0064/CH)
Full planning data for 4 Aston House, Penn Road, Knotty Green, Beaconsfield, HP9 2TS
3 more on this property, plus every nearby application and full decision details, in the report.
11 November 2009Most recent
£475,000
-12.4%over 3 years28 November 2005
£542,000
Median price across the last 5 sales in HP9 2TS: £1,812,500 (2023–2018).
4 Glenock Place Penn Road Knotty Green Beaconsfield
Sold Jul 2023
Pennway Penn Road Knotty Green Beaconsfield
Sold Jan 2023
2 Glenock Place Penn Road Knotty Green Beaconsfield
Sold May 2022
Keren Penn Road Knotty Green Beaconsfield
Sold Sept 2020
6 Glenock Place Penn Road Knotty Green Beaconsfield
Sold Aug 2018
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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CO₂ Emissions
2.5 t/year
Street avg 2.7 t/year
HP9 2TS
Alfriston School — bus stop.
Closest school
2.3 km
St Mary and All Saints CofE Primary School. 7 schools nearby.
Night-time· 23:00 – 07:00
38.3dB