23 Harmsworth Way, Barnet, London, N20 8JT
About 23 Harmsworth Way
23 Harmsworth Way is a four-bedroom detached house in Barnet, London, London (N20 8JT). It has a recorded floor area of 248 m² (around 2669 sq ft), construction records dating it to 1950-1966 and council tax band H. The latest certificate (July 2016) shows an F (score 38), near the bottom of the EPC scale. The rating has held steady at F across 2 certificates since September 2014. Between certificates, window efficiency went from Poor to Average and main heating went from Average to Good; while roof efficiency dropped from Poor to Very Poor. The recommended improvements would lift it to C (score 76), a 3-band jump.
At 248 m² it's 26.6% smaller than the typical home in the postcode (338 m² median across 8 EPCs). On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. 6 planning records sit against the property, 2 approved, 0 refused. Past consents include an extension and partial demolition, meaningful when judging how the property has evolved. On a £-per-square-foot basis, the last sale (£787/sq ft) was about 24.7% above the typical sold price in the postcode. Last changed hands 11 years ago, in October 2015.
What this property has
Inside
- Bedrooms4
- Dining roomYes
- StudyYes
Outside
- Private gardenSouth-facing
- GarageDouble
Energy performance
23 Harmsworth Way sits at the bottom of the postcode for energy efficiency — meaningful headroom to improve.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Windows upgraded, improving insulation
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Planning history
Planning history includes recorded demolition works, indicating a major rebuild phase at this address.
- Nov 2025Tree WorksTreesIn report
1 x Lilac (applicants ref. T1) - Fell to ground level and poison stump. 1 x Magnolia (applicants ref. T3) - Fell to ground level. 1 x Birch (applicants ref. T4) - Fell to ground level. 2 x Lilac, 1 x Atlas Cedar(applicants ref. TG5) - Fell all stems (3) to ground level and grind out stumps (all less than 4m tall). 1 x Magnolia (applicants ref. T7) - Sympathetically crown reduce and shape by 1.5m. 1 x Holly (applicants ref. T8) - Section Fell to ground level and poison stump to prevent regrowth. 1 x Cherry (applicants ref. T9) - Section Fell / Dismantle to ground level. Lawson Cypress Group (applicants ref. TG10) - Sympathetically crown lift to 3m.
- Agent
- KW Tree Care
- Documents
- 4 docs on file
- Reference
- TCP/0671/25
- Apr 2023Tree WorksTreesIn report
1 x Magnolia (applicants ref. T1) - Reduce and trim by 1-2 M approx.1 x Lilac, 1 Cotoneaster (applicants ref. G2) - Reduce back by 1-2 M approx to clear shed.1 x Lawsonia Conifer (applicants ref. T3) - Fell and grind out stump.
- Agent
- G & R Tree Surgeons
- Documents
- 4 docs on file
- Reference
- TCP/0140/23
What's in 23 Harmsworth Way, Barnet, London, N20 8JT's planning history?
4 more on this property, plus refusals, disputes and full decisions nearby, in the report.
Sales history & valuation
23 Harmsworth Way valuation sits well clear of the typical sold price in this postcode.
£2,284,000
Modelled from EPC, postcode comparables.
£2,100,000
Recorded with HM Land Registry.
Sales timeline
1 October 2015Most recent
£2,100,000
Median price across the last 5 sales in N20 8JT: £2,125,000 (2023–2012).
Nearby sales in N20 8JT
9 Harmsworth Way, Barnet, London, N20 8JT
Sold Dec 2023
£2,125,00015 Harmsworth Way, Barnet, London, N20 8JT
Sold Feb 2023
£2,450,00019 Harmsworth Way, Barnet, London, N20 8JT
Sold Dec 2019
£1,585,0005 Harmsworth Way, Barnet, London, N20 8JT
Sold Sept 2014
£1,910,00011 Harmsworth Way, Barnet, London, N20 8JT
Sold Aug 2012
£3,125,000
Versus other Harmsworth Way homes
On epc rating, 23 Harmsworth Way runs well behind the street norm.
Price per m²
£8,468
Street avg £7,009
Floor Area
248 m²
Street avg 315 m²
Habitable Rooms
8 rooms
Street avg 8 rooms
CO₂ Emissions
17.0 t/year
Street avg 6.7 t/year
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The neighbourhood at a glance
Reported crime in the wider district is trending notably upward year-on-year.
Crime
4/mo
Rising year-on-year across the wider district.
Nearest stop
0.1 km
Totteridge Green — bus stop.
Closest school
0.2 km
St Andrew's CofE Voluntary Aided Primary School, Totteridge. 35 schools nearby.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.
Road noise across the postcode

Daytime· 07:00 – 23:00
46.7dB

Night-time· 23:00 – 07:00
39.3dB







