18 Northampton Square, Islington, London, EC1V 0AJ
About 18 Northampton Square
18 Northampton Square is a six-bedroom mid-terrace house in Islington, London, London (EC1V 0AJ). It has a recorded floor area of 262 m² (around 2820 sq ft), construction records dating it to before 1900 and council tax band H. The latest certificate (December 2013) shows a D (score 59), a step below the typical UK home. The recommended improvements would push it to C (score 77). The latest certificate is from December 2013, so improvements made since then won't be reflected.
4 planning records sit against the property, 4 approved, 0 refused. Past consents include new windows, meaningful when judging how the property has evolved. The record references listed-building consent, which constrain future alterations. Across 2014–2022, sale prices on this property compounded at 6.4% per year. On a £-per-square-foot basis, the last sale (£1,330/sq ft) was about 472.5% above the typical sold price in the postcode. Last sale on file: £3,750,000 in March 2022. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend. 6 bedrooms is on the larger side for this postcode, where 2 is the typical count.
Know exactly what you're buying at 18 Northampton Square
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
What this property has
Inside
- Bedrooms6
- Bathrooms4
Energy performance
18 Northampton Square's carbon output runs well above what efficient homes in the postcode produce.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 16 Dec 2023
EPC Rating
Planning history
18 Northampton Square has multiple listed-building consents on file — alterations need formal heritage approval.
- Jun 2025RenovationHeritageIn report
Installation of external vents in the lower ground floor lightwells.
- Documents
- 9 docs on file
- Reference
- P2025/1096/LBC
- Dec 2014RenovationHeritageIn report
Listed Building Consent application in connection with external and internal alterations including changes to plan layout and repair to the fabric; removal of concrete slabs to front pavements; and installation of new pavement lightwells, basement windows and cast iron railings to front of property; replacement of modern windows to upper levels to the rear and insertion of period sash windows; removal of modern French doors and metal security door to ground floor rear, and reinstatement of Crittal style metal-framed glazing; single rooflight to rear slope. Listed Building Consent application P2014/3760 also submitted. Full Planning application P2014/3644 also submitted
ListedNew Windows- Documents
- 3 docs on file
- Reference
- P2014/3760/LBC
What's in 18 Northampton Square, Islington, London, EC1V 0AJ's planning history?
2 more on this property, plus refusals, disputes and full decisions nearby, in the report.
Sales history & valuation
Latest sale on 18 Northampton Square was the highest on Land Registry record across the postcode.
£3,700,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.4% per year over 8 years.
£3,750,000
Growth on file: 6.4% per year over 8 years.
Sales timeline
14 March 2022Most recent
£3,750,000
+61.3%over 7 years26 June 2014
£2,325,000
Median price across the last 5 sales in EC1V 0AJ: £480,000 (2023–1996).
Everything we know about 18 Northampton Square, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
- Am I paying too much?
- Is something wrong with it?
- Is the agent's story true?
- Will it hold its value?

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The neighbourhood at a glance
Reported crime in the wider district is trending notably upward year-on-year.
Crime
10/mo
Rising year-on-year across the wider district.
Nearest stop
0.1 km
City University — bus stop.
Closest school
0.2 km
Moreland Primary School. 95 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
60.1dB

Night-time· 23:00 – 07:00
51.0dB