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Get started9 Bellfield Avenue is a four-bedroom detached house in Harrow (HA3 6ST). It has a recorded floor area of 119 m² (around 1282 sq ft), construction records dating it to 1930-1949 and council tax band G. The latest certificate (December 2010) shows a C (score 72). When first surveyed in June 2010 the rating was E, the property has climbed 2 bands since. Between certificates, window efficiency went from Very Poor to Good, hot-water efficiency went from Average to Very Good and main heating went from Average to Very Good; while roof efficiency dropped from Very Good to Good and lighting dropped from Poor to Very Poor. The latest certificate is from December 2010, so improvements made since then won't be reflected.
Sale prices here have outpaced Harrow HPI: 30.7% per year against 0% for the wider region. Today's modelled estimate of £1,006,000 is 36.9% above the 2011 sale price. On a £-per-square-foot basis, the last sale (£573/sq ft) was about 109.5% above the typical sold price in the postcode. At 119 m² it sits well below the postcode median (222 m² across 11 EPCs), making it one of the more compact homes locally. 7 planning records sit against the property, 3 approved, 0 refused. Past consents include an extension, partial demolition and a loft conversion, meaningful when judging how the property has evolved. 15 years since the last transfer (September 2011).
9 Bellfield Avenue'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This certificate is over 10 years old and is no longer valid.Expired 13 Dec 2020
Planning history includes recorded demolition works, indicating a major rebuild phase at this address.
Side and rear of property
9 Bellfield Avenue changed hands twice within eighteen months — unusual for the area.
£1,006,000
Modelled from EPC, postcode comparables and a sale-price growth of 30.7% per year over 1 year.
£735,000
Growth on file: 30.7% per year over 1 year.
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9 Bellfield Avenue is notably below the street on floor area.
Price per m²
£6,171
Street avg £4,688
Floor Area
119 m²
Street avg 237 m²
Habitable Rooms
7 rooms
Crime
5/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Belsize Road — bus stop.

Daytime· 07:00 – 23:00
51.3dB

Changes detected from historical EPC data
Heating controls changed
Hot water efficiency improved
Single glazing replaced with double or better glazing
Are we missing something? Tell us about home improvements to help adjust your valuation.
First floor extension to create two storey dwelling incorporating hipped roof, single storey side and side to rear extensions; external alterations; demolition of detached garage and shed
Extension: Rear of property
Alterations and extension to roof to form crown roof; two front dormers; two rear dormers; single and two storey rear extension; single storey side extension; external alterations
5 more applications for this property
Join to see all planning history.
21 September 2011Most recent
£735,000
+31.3%over 1 year15 September 2010
£560,000
Median price across the last 5 sales in HA3 6ST: £1,575,000 (2024–2018).
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Street avg 8 rooms
CO₂ Emissions
4.8 t/year
Street avg 7.6 t/year
HA3 6SB
Closest school
0.6 km
Hujjat Primary School. 27 schools nearby.
Night-time· 23:00 – 07:00
42.6dB