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Get started5 St Margarets Avenue is a four-bedroom semi-detached house in Barnet, London, London (N20 9LL). It has a recorded floor area of 143 m² (around 1539 sq ft), construction records dating it to 1930-1949 and council tax band E. The latest certificate (September 2020) shows a D (score 67), on the cusp of jumping into the C band. When first surveyed in July 2013 the rating was E, the property has climbed 1 band since. Between certificates, lighting went from Good to Very Good; while roof efficiency dropped from Average to Very Poor. The recommended improvements would lift it to B (score 82), a 2-band jump.
Sale prices here have outpaced London HPI: 9.3% per year against 0% for the wider region. Today's modelled estimate of £1,024,000 is 14.4% above the 2020 sale price. On a £-per-square-foot basis, the last sale (£581/sq ft) was about 66% above the typical sold price in the postcode. At 143 m² the property is well over the postcode median (106 m² across 21 EPCs), placing it in the larger end of the local stock. 2 planning records sit against the property, 1 approved, 0 refused. Past consents include an extension and a porch, meaningful when judging how the property has evolved. Last sale on file: £895,000 in December 2020.
Recommended upgrades on file would lift this property by multiple EPC bands.
Planning history includes both a loft conversion and an extension — the classic family-home expansion.
New front porch roof.
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£1,024,000
Modelled from EPC, postcode comparables and a sale-price growth of 9.3% per year over 7 years.
£895,000
Growth on file: 9.3% per year over 7 years.
On epc rating, 5 St Margarets Avenue stands well clear of the street.
Price per m²
£6,259
Street avg £5,297
Floor Area
143 m²
Street avg 118 m²
Habitable Rooms
5 rooms
Rail-style transport is unusually close for this postcode.
Crime
4/mo
Rising year-on-year across the wider district.
Nearest stop
0.1 km
Athenaeum Road — bus stop.

Daytime· 07:00 – 23:00
50.6dB

Changes detected from historical EPC data
Heating controls upgraded for better temperature management
More low energy lighting installed
Are we missing something? Tell us about home improvements to help adjust your valuation.
Extension: Single storey · Rear of property
Single storey extension to rear, front porch (less than 3m2), loft conversion (under 40 cubic metres), front rooflights, extension of existing soil vent pipe, insertion of side window
18 December 2020Most recent
£895,000
+84.5%over 6 years23 January 2014
£485,000
Median price across the last 5 sales in N20 9LL: £772,000 (2023–2018).
Street avg 5 rooms
CO₂ Emissions
5.1 t/year
Street avg 5.5 t/year
N20 9DF
Closest school
0.5 km
Alma Primary. 45 schools nearby.
Night-time· 23:00 – 07:00
42.1dB
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