1 Thornbury Square, Islington, London, N6 5YN
About 1 Thornbury Square
1 Thornbury Square is a four-bedroom end-of-terrace house in Islington, London, London (N6 5YN). It has a recorded floor area of 150 m² (around 1615 sq ft), construction records dating it to 1976-1982 and council tax band G. The latest certificate (October 2011) shows a D (score 63), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 72). The latest certificate is from October 2011, so improvements made since then won't be reflected.
Across 2001–2012, sale prices on this property compounded at 6.3% per year. Today's modelled estimate of £1,559,000 sits 55.9% above the 2012 sale of £1,000,000. On a £-per-square-foot basis, the last sale (£619/sq ft) was about 34.7% above the typical sold price in the postcode. 5 planning records sit against the property, 4 approved, 0 refused. Past consents include tree works, meaningful when judging how the property has evolved. It lags the bulk of the postcode on energy efficiency (less efficient than 75% of similar EPCs). On the market in February 2012 and unlisted since — roughly 14 years.
What this property has
Inside
- Bedrooms4
- Dining roomYes
- CloakroomYes
- EnsuiteYes
Outside
- GarageDetached
Energy performance
1 Thornbury 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This certificate is over 10 years old and is no longer valid.Expired 09 Oct 2021
EPC Rating
Planning history
Planning history at 1 Thornbury Square is exclusively tree-management applications — typical for a property with mature trees on or near the plot.
- Oct 2022Tree WorksTreesIn report
Thornbury Square (next to vehicle entrance) (TPO ref: TPO 63/1985) (T1) Leyland Cypress (TPO T3) - Reduce the crown overall by up to 1.5 metres and shape. (T2) Deodar Cedar T2 (TPO T5) - Reduce carefully on building side by reducing overhanging branches (2) back to a lateral and to give 2 metres clearance.
- Documents
- 5 docs on file
- Reference
- P2022/3122/TRE
- Mar 2014Tree WorksTreesIn report
T8 Lime- 8 metres-Crown to previous reduction points whilst leaving furnishing growth on all aspects. T9 Lime- 16 metres- Crown to previous reduction points whilst leaving furnishing growth on all aspects.previous reduction points. T10 Lime- 16 metres- Crown to previous reduction points whilst leaving furnishing growth on all aspects.
- Documents
- 1 doc on file
- Reference
- P2014/0198/TRE
We flagged 1 thing worth checking at 1 Thornbury Square
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
1 Thornbury Square valuation sits well clear of the typical sold price in this postcode.
£1,559,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.3% per year over 11 years.
£1,000,000
Growth on file: 6.3% per year over 11 years.
Sales timeline
1 February 2012Most recent
£1,000,000
+77.3%over 8 years16 September 2003
£564,000
+7.4%over 2 years23 July 2001
£525,000
Median price across the last 5 sales in N6 5YN: £1,075,000 (2022–2009).
Nearby sales in N6 5YN
11 Thornbury Square, Islington, London, N6 5YN
Sold Sept 2022
£1,350,0007 Thornbury Square, Islington, London, N6 5YN
Sold Oct 2017
£1,075,0005 Thornbury Square, Islington, London, N6 5YN
Sold Jul 2013
£1,013,0004 Thornbury Square, Islington, London, N6 5YN
Sold Aug 2011
£1,175,0009 Thornbury Square, Islington, London, N6 5YN
Sold Aug 2009
£835,000
Versus other Thornbury Square homes
Years Held for 1 Thornbury Square runs comfortably ahead of the street norm.
Price per m²
£6,667
Street avg £7,954
Floor Area
150 m²
Street avg 144 m²
Habitable Rooms
7 rooms
Street avg 6 rooms
CO₂ Emissions
6.3 t/year
Street avg 4.6 t/year
Similar properties nearby
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The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
7/mo
Rising year-on-year across the wider district.
Nearest stop
0.1 km
Cromwell Avenue (N6) — bus stop.
Closest school
0.1 km
St Aloysius' College. 65 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
53.8dB

Night-time· 23:00 – 07:00
44.1dB







