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Get started9 Keystone Crescent is a mid-terrace house in Islington, London, London (N1 9DS). It has a recorded floor area of 102 m² (around 1098 sq ft), construction records dating it to before 1900 and council tax band G. The latest certificate (October 2018) shows a D (score 56), a step below the typical UK home. The recommended improvements would lift it to B (score 89), a 2-band jump.
5 planning records sit against the property, 5 approved, 0 refused. Past consents include an extension and tree works, meaningful when judging how the property has evolved. The record references listed-building consent, which constrain future alterations. Today's modelled estimate of £824,000 is 26.8% above the 2017 sale price. On a £-per-square-foot basis, the last sale (£592/sq ft) was about 17.5% below the postcode norm. On the market in December 2017 and unlisted since — roughly 8 years.
Recommended upgrades on file would lift this property by multiple EPC bands.
9 Keystone Crescent has 4 separate extension applications on the council record.
Extension: Single storey · Rear of property
Erection of a single storey rear extension at lower ground floor level. Listed Building Application P2018/1313/LBC also submitted
9 Keystone Crescent valuation sits well clear of the typical sold price in this postcode.
£824,000
Modelled from EPC, postcode comparables.
£650,000
Recorded with HM Land Registry.
Price per m² for 9 Keystone Crescent lags the street by a wide margin.
Price per m²
£6,373
Street avg £8,757
Floor Area
102 m²
Street avg 97 m²
Habitable Rooms
6 rooms
Rail-style transport is unusually close for this postcode.
Crime
10/mo
Rising year-on-year across the wider district.
Nearest stop
0.1 km
King's Cross /Pentonville Road — bus stop.

Daytime· 07:00 – 23:00
60.4dB

Extension: Single storey · Rear of property
Erection of a single storey rear extension at lower ground floor level. Full Planning Application P2018/1165/FUL also submitted.
3 more applications for this property
Join to see all planning history.
30 December 2017Most recent
£650,000
Median price across the last 5 sales in N1 9DS: £850,000 (2025–2021).
Street avg 5 rooms
CO₂ Emissions
5.0 t/year
Street avg 5.2 t/year
N1 9DS
Closest school
0.2 km
Winton Primary School. 74 schools nearby.
Night-time· 23:00 – 07:00
51.8dB
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