11 Dower Close is a five-bedroom detached house in Knotty Green, Beaconsfield, Beaconsfield (HP9 1XZ). It has a recorded floor area of 328 m² (around 3531 sq ft), construction records dating it to 1983-1990 and council tax band H. The latest certificate (June 2024) shows a C (score 74). When first surveyed in September 2013 the rating was D, the property has climbed 1 band since. Between certificates, lighting went from Poor to Very Good.
Sale prices here have outpaced England HPI: 3.9% per year against 0% for the wider region. Today's modelled estimate of £1,873,000 sits 59.4% above the 2014 sale of £1,175,000. On a £-per-square-foot basis, the last sale (£333/sq ft) was about 22.6% below the postcode norm. At 328 m² the property is well over the postcode median (219 m² across 4 EPCs), placing it in the larger end of the local stock. Its energy rating outperforms most of the postcode (better than 75% of similar EPCs). 12 years since the last transfer (April 2014). 2 planning records sit against the property, 0 approved, 0 refused.
11 Dower Close's carbon output runs well above what efficient homes in the postcode produce.
Planning history includes both a loft conversion and an extension — the classic family-home expansion.
Three front one rear dormer windows, rooflights to front and rear to facilitate habitable accommodation in the roofspace
11 Dower Close valuation sits well clear of the typical sold price in this postcode.
£1,873,000
Modelled from EPC, postcode comparables and a sale-price growth of 3.9% per year over 12 years.
£1,175,000
Growth on file: 3.9% 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 epc rating, 11 Dower Close stands well clear of the street.
Price per m²
£3,582
Street avg £4,472
Floor Area
328 m²
Street avg 226 m²
Habitable Rooms
12 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
0.1 km

Daytime· 07:00 – 23:00
47.5dB

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Changes detected from historical EPC data
Ventilation system changed
Roof insulation improved
More low energy lighting installed
Extension: Side and rear of property
Single storey side and rear extensions.
Full planning data for 11 Dower Close, Knotty Green, Beaconsfield, HP9 1XZ
Every application and decision on this property and nearby, in full, in the report.
2 April 2014Most recent
£1,175,000
+56.1%over 11 years1 August 2002
£752,750
Median price across the last 5 sales in HP9 1XZ: £1,100,000 (2020–2007).
7 Dower Close Knotty Green Beaconsfield
Sold Aug 2020
8 Dower Close Knotty Green Beaconsfield
Sold May 2014
1 Dower Close Knotty Green Beaconsfield
Sold Jul 2013
5 Dower Close Knotty Green Beaconsfield
Sold Jul 2007
4 Dower Close Knotty Green Beaconsfield
Sold Jul 2005
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 10 rooms
CO₂ Emissions
8.6 t/year
Street avg 8.8 t/year
HP9 1HJ
Seeleys Road N H&R — bus stop.
Closest school
1.7 km
St Mary and All Saints CofE Primary School. 5 schools nearby.
Night-time· 23:00 – 07:00
38.3dB