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Get started51 Updown Hill is a four-bedroom detached house in Windlesham (GU20 6DL). It has a recorded floor area of 214 m² (around 2303 sq ft), construction records dating it to 1900-1929 and council tax band G. The latest certificate (October 2025) shows a D (score 66), on the cusp of jumping into the C band. Earlier certificates rated it C (May 2013); the latest reading is one band lower. Between certificates, wall efficiency dropped from Good to Poor and window efficiency dropped from Very Good to Average. The recommended improvements would push it to C (score 78).
Sale prices here have outpaced England HPI: 21.7% per year against 0% for the wider region. Today's modelled estimate of £1,163,000 is 22.4% above the 2019 sale price. On a £-per-square-foot basis, the last sale (£412/sq ft) was about 23% above the typical sold price in the postcode. At 214 m² the property is well over the postcode median (88 m² across 19 EPCs), placing it in the larger end of the local stock. 2 planning records sit against the property, 2 approved, 0 refused. Past consents include an extension, meaningful when judging how the property has evolved. Most recent transfer: April 2019 at £950,000.
51 Updown Hill's carbon output runs well above what efficient homes in the postcode produce.
Extension: Single storey · Side and rear of property
Change of Use from Offices to provide a 4 bedroom dwelling house to include the erection of a first floor side/rear extension and single storey side and rear extension. (Amended plans rec'd 14/05/12)
Sale price has grown by over 3x since 2013.
£1,163,000
Modelled from EPC, postcode comparables and a sale-price growth of 21.7% per year over 6 years.
£950,000
Growth on file: 21.7% per year over 6 years.
51 Updown Hill outperforms the street on floor area by a wide margin.
Price per m²
£4,439
Street avg £5,584
Floor Area
214 m²
Street avg 143 m²
Habitable Rooms
7 rooms
Crime
1/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Cooper Road — bus stop.

Daytime· 07:00 – 23:00
52.4dB

Changes detected from historical EPC data
Heating controls changed
Loft insulation upgraded to recommended levels
Are we missing something? Tell us about home improvements to help adjust your valuation.
Continued use of ground floor for Class A2 (financial and professional services) and first floor for Class B1 (office) purposes.
4 April 2019Most recent
£950,000
-1.6%over 3 years1 October 2015
£965,000
+221.7%over 2 years21 May 2013
£300,000
Median price across the last 5 sales in GU20 6DL: £193,500 (2025–2020).
Street avg 7 rooms
CO₂ Emissions
7.1 t/year
Street avg 5.9 t/year
GU20 6JY
Closest school
1.2 km
Windlesham Village Infant School. 7 schools nearby.
Night-time· 23:00 – 07:00
44.7dB
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