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Get started186 Harrowdene Gardens is a one-bedroom mid-terrace house in Teddington (TW11 0DW). It has a recorded floor area of 43 m² (around 463 sq ft), construction records dating it to 1950-1966 and council tax band C. The latest certificate (July 2020) shows an E (score 48), well below the UK norm with real room to improve. When first surveyed in October 2009 the rating was G, the property has climbed 2 bands since. Between certificates, roof efficiency went from Very Poor to Good; while lighting dropped from Average to Very Poor. The recommended improvements would lift it to B (score 81), a 3-band jump. Main heating runs on electricity. At 43 m² this is the 3rd smallest of 25 units on EPC record in the building, where floor areas span 40–46 m². The building's EPC ratings span E to C, with this unit at the bottom. On EPC score it ranks last in the building (48 versus a best of 76).
Untraded for 16 years, with the last transfer in November 2009. That sale fell during the post-crash dip, which often skews comparisons against later neighbouring sales. Sale prices here have outpaced England HPI: 2.5% per year against 0% for the wider region. Today's modelled estimate of £298,000 sits 52.8% above the 2009 sale of £195,000. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement.
186 Harrowdene Gardens sits at the bottom of the postcode for energy efficiency — meaningful headroom to improve.
186 Harrowdene Gardens saw 3 transfers in just over a decade — high turnover for the postcode.
£298,000
Modelled from EPC, postcode comparables and a sale-price growth of 2.5% per year over 6 years.
£195,000
Growth on file: 2.5% per year over 6 years.
186 Harrowdene Gardens is notably below the street on epc rating.
Price per m²
£4,535
Street avg £6,196
Floor Area
43 m²
Street avg 44 m²
Habitable Rooms
2 rooms
Street avg 2 rooms
Rail-style transport is unusually close for this postcode.
Crime
4/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Bushy Park Road — bus stop.

Daytime· 07:00 – 23:00
49.0dB

Changes detected from historical EPC data
Heating system upgraded to a more efficient system
Connected to mains gas supply
Hot water system upgraded
Single glazing replaced with double or better glazing
Cavity wall insulation installed
Roof insulation improved
Heating system changed
Changed to a more efficient fuel source
Heating controls upgraded for better temperature management
Hot water system changed
Loft insulation upgraded to recommended levels
Low energy lighting percentage decreased
Are we missing something? Tell us about home improvements to help adjust your valuation.
27 November 2009Most recent
£195,000
+8.3%over 3 years26 January 2006
£180,000
+7.1%over 2 years25 November 2003
£168,000
Median price across the last 5 sales in TW11 0DW: £335,000 (2025–2021).
CO₂ Emissions
2.7 t/year
Street avg 1.9 t/year
TW11 0EE
Closest school
0.2 km
Sacred Heart Catholic Primary School. 32 schools nearby.
Night-time· 23:00 – 07:00
41.4dB
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