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Get started25 Basire Street is a mid-terrace house in Islington, London, London (N1 8PN). It has a recorded floor area of 105 m² (around 1130 sq ft) and construction records dating it to before 1900. The latest certificate (May 2022) shows a D (score 68), on the cusp of jumping into the C band. When first surveyed in March 2014 the rating was G, the property has climbed 3 bands since. Between certificates, roof efficiency went from Very Poor to Average, window efficiency went from Very Poor to Average and hot-water efficiency went from Very Poor to Good; while lighting dropped from Very Good to Very Poor. The recommended improvements would lift it to B (score 86), a 2-band jump.
Sale prices here have outpaced London HPI: 5% per year against 0% for the wider region. Today's modelled estimate of £1,548,000 is 24.8% above the 2022 sale price. On a £-per-square-foot basis, the last sale (£1,097/sq ft) was about 92.9% above the typical sold price in the postcode. At 105 m² the property is well over the postcode median (59 m² across 35 EPCs), placing it in the larger end of the local stock. 3 planning records sit against the property, 1 approved, 0 refused. Past consents include an extension, meaningful when judging how the property has evolved. Sold November 2022 for £1,240,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Recommended upgrades on file would lift this property by multiple EPC bands.
25 Basire Street has 3 separate extension applications on the council record.
Extension: Single storey · Rear of property
Erection of rear single storey extension
25 Basire Street saw 3 transfers in just over a decade — high turnover for the postcode.
£1,548,000
Modelled from EPC, postcode comparables and a sale-price growth of 5.0% per year over 9 years.
£1,240,000
Growth on file: 5.0% per year over 9 years.
On floor area, 25 Basire Street runs well behind the street norm.
Price per m²
£11,810
Street avg £10,222
Floor Area
105 m²
Street avg 110 m²
Habitable Rooms
4 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
Basire Street — bus stop.

Daytime· 07:00 – 23:00
56.3dB

Changes detected from historical EPC data
Upgraded to gas central heating
Hot water system upgraded
Single glazing replaced with double or better glazing
Low energy lighting percentage decreased
Heating controls upgraded for better temperature management
Windows upgraded, improving insulation
Roof insulation improved
Are we missing something? Tell us about home improvements to help adjust your valuation.
Erection of a mansard roof extension.
1 more application for this property
Join to see all planning history.
25 November 2022Most recent
£1,240,000
+3.8%over 7 years6 February 2015
£1,195,000
+46.8%over 10 months15 April 2014
£814,000
Median price across the last 5 sales in N1 8PN: £732,000 (2024–2023).
13 Basire Street Islington London
Sold Sept 2024
Island Apartments Apartment 9 29 Basire Street Islington London
Sold Jun 2024
Island Apartments Apartment 19 29 Basire Street Islington London
Sold Nov 2023
5 Basire Street Islington London
Sold Sept 2023
Flat 7 15 Basire Street London
Sold Feb 2023
Street avg 5 rooms
CO₂ Emissions
3.4 t/year
Street avg 3.6 t/year
N1 8DJ
Closest school
0.2 km
Rotherfield Primary School. 101 schools nearby.
Night-time· 23:00 – 07:00
45.8dB
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