9 Northumberland Road, New Barnet, Barnet, EN5 1EF
About 9 Northumberland Road
9 Northumberland Road is a six-bedroom semi-detached house in New Barnet, Barnet, Barnet (EN5 1EF). It has a recorded floor area of 283 m² (around 3046 sq ft), construction records dating it to 1900-1929 and council tax band G. The latest certificate (July 2019) shows a D (score 63), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 80). Period features are noted in the property record.
Across 2019–2025, sale prices on this property compounded at 6.4% per year. Today's modelled estimate of £1,737,000 is 16.7% below the 2025 sale of £2,085,000, an unusual pattern given regional price growth and worth checking against the EPC condition. On a £-per-square-foot basis, the last sale (£684/sq ft) was about 142.8% above the typical sold price in the postcode. Most recent transfer was March 2025 at £2,085,000 — fresh data. 2 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. 6 bedrooms is on the larger side for this postcode, where 5 is the typical count.
Know exactly what you're buying at 9 Northumberland Road
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Already flagged here
Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
What this property has
Inside
- Bedrooms6
- Bathrooms2
- Dining roomYes
- Utility roomYes
- StudyYes
- FireplaceYes
Building
- Period featuresYes
Energy performance
9 Northumberland Road's carbon output runs well above what efficient homes in the postcode produce.
EPC Rating
Planning history
Planning history includes recorded demolition works, indicating a major rebuild phase at this address.
- Oct 2022ConditionsIn report
Submission of details of conditions 3 (Tree protection) 4 (Foundations) pursuant to planning permission 21/6499/HSE dated 13/12/2021
- Agent
- Seam Collective
- Documents
- 6 docs on file
- Reference
- 22/4155/CON
- Mar 2022DemolitionFullIn report
Extension: Side of property
Single storey side extension following demolition of existing rear extension.Alteration to external landscaping including raising of rear terrace. Erection of security gates to the side of the property (Amended Plans)
- Agent
- Seam Collective
Extension- Documents
- 18 docs on file
- Reference
- 21/6499/HSE
We flagged 1 thing worth checking at 9 Northumberland Road
Independent checks surfaced things a buyer would want to understand before offering. The report explains each one in full, with the underlying data and what to ask.
- Larger development activity nearby
30-day money-back guarantee
Sales history & valuation
Latest sale on 9 Northumberland Road was the highest on Land Registry record across the postcode.
£1,737,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.4% per year over 5 years.
£2,085,000
Growth on file: 6.4% per year over 5 years.
Sales timeline
19 March 2025Most recent
£2,085,000
+39.0%over 5 years19 November 2019
£1,500,000
Median price across the last 5 sales in EN5 1EF: £1,205,000 (2025–2015).
Nearby sales in EN5 1EF
15 Northumberland Road, New Barnet, Barnet, EN5 1EF
Sold Mar 2025
£1,950,0005a, Northumberland Road, New Barnet, Barnet, EN5 1EF
Sold Mar 2021
£1,205,0003 Northumberland Road, New Barnet, Barnet, EN5 1EF
Sold Feb 2021
£1,545,0005 Northumberland Road, New Barnet, Barnet, EN5 1EF
Sold Nov 2016
£950,00019 Northumberland Road, New Barnet, Barnet, EN5 1EF
Sold Jan 2008
£965,000
Everything we know about 9 Northumberland Road, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
What we flagged
- Larger development activity nearby

Versus other Northumberland Road homes
9 Northumberland Road outperforms the street on price per m² by a wide margin.
Price per m²
£7,367
Street avg £4,783
Floor Area
283 m²
Street avg 271 m²
Habitable Rooms
12 rooms
Street avg 9 rooms
CO₂ Emissions
11.0 t/year
Street avg 9.3 t/year
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The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
3/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Walfield Avenue — bus stop.
Closest school
1.1 km
Ark Pioneer Academy. 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
50.8dB

Night-time· 23:00 – 07:00
41.7dB