3 Southway is a three-bedroom semi-detached house in Beaconsfield (HP9 1DE). It has a recorded floor area of 138 m² (around 1485 sq ft), construction records dating it to 1950-1966 and council tax band E. The latest certificate (March 2015) shows a D (score 67), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since April 2012. Between certificates, window efficiency went from Average to Good and lighting went from Very Poor to Very Good. The recommended improvements would lift it to B (score 85), a 2-band jump. The latest certificate is from March 2015, so improvements made since then won't be reflected. Other recorded features include a conservatory. It has already been extended once and our model flags further extension potential, a sign of buyer flexibility.
Sale prices here have outpaced England HPI: 4% per year against 0% for the wider region. Today's modelled estimate of £617,000 sits 54.3% above the 2013 sale of £400,000. On a £-per-square-foot basis, the last sale (£269/sq ft) was about 21.8% below the postcode norm. At 138 m² the property is well over the postcode median (97 m² across 7 EPCs), placing it in the larger end of the local stock. 13 years since the last transfer (May 2013). 3 planning records sit against the property, 0 approved, 0 refused.
Recommended upgrades on file would lift this property by multiple EPC bands.
This certificate is over 10 years old and is no longer valid.Expired 24 Mar 2025
Extension: Single storey · Side of property
Demolition of conservatory, erection of first floor side extension and front porch, changes to doors and windows (amendment to planning permission PL/21/1382/FA)
3 Southway valuation sits well clear of the typical sold price in this postcode.
£617,000
Modelled from EPC, postcode comparables and a sale-price growth of 4.0% per year over 11 years.
£400,000
Growth on file: 4.0% per year over 11 years.
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Price per m² for 3 Southway lags the street by a wide margin.
Price per m²
£2,899
Street avg £5,136
Floor Area
138 m²
Street avg 108 m²
Habitable Rooms
6 rooms
Crime
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Wooburn Green Lane — bus stop.

Daytime· 07:00 – 23:00
55.4dB

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Changes detected from historical EPC data
Window efficiency improved
More low energy lighting installed
Extension: Single storey · Side of property
Demolition of conservatory, erection of first floor side extension and front porch, changes to doors and windows
Full planning data for 3 Southway, Beaconsfield, HP9 1DE
1 more on this property, plus every nearby application and full decision details, in the report.
10 May 2013Most recent
£400,000
+50.9%over 10 years27 September 2002
£265,000
Median price across the last 5 sales in HP9 1DE: £570,000 (2025–2017).
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 5 rooms
CO₂ Emissions
5.2 t/year
Street avg 4.9 t/year
HP9 1GW
Closest school
0.6 km
Holtspur School & Pre-School. 11 schools nearby.
Night-time· 23:00 – 07:00
47.6dB