128a, Blackstock Road, Islington, London, N4 2DX
About 128a
128a is an end-of-terrace house in Islington, London, London (N4 2DX). It has a recorded floor area of 43 m² (around 463 sq ft) and construction records dating it to before 1900. The latest certificate (December 2015) shows a D (score 64), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 78). The latest certificate is from December 2015, so improvements made since then won't be reflected.
Untraded for 30 years, with the last transfer in June 1996. Only one transfer is on record with HM Land Registry, suggesting it has stayed in the same hands for a long time. Today's modelled estimate of £477,000 sits 303.7% above the 1996 sale of £118,143. On a £-per-square-foot basis, the last sale (£255/sq ft) was about 35.6% below the postcode norm. One planning record on file: new windows approved in 2012. Past consents include new windows, meaningful when judging how the property has evolved. At 43 m² it's 17.3% smaller than the typical home in the postcode (52 m² median across 15 EPCs).
Know exactly what you're buying at 128a
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
Energy performance
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 21 Dec 2025
EPC Rating
Planning history
- Feb 2012RenovationFullIn report
Replacement of existing windows to upper floors with double glazed timber windows.
New Windows- Documents
- 7 docs on file
- Reference
- P112958
We flagged 1 thing worth checking at 128a
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
128a's modelled value sits at over four times its earliest registered sale price (1996).
£477,000
Modelled from EPC, postcode comparables.
£118,143
Recorded with HM Land Registry.
Sales timeline
27 June 1996Most recent
£118,143
Median price across the last 5 sales in N4 2DX: £525,000 (2021–2015).
Nearby sales in N4 2DX
136a, Blackstock Road, Islington, London, N4 2DX
Sold Mar 2021
£525,000134a, Flat A, Blackstock Road, London, N4 2DX
Sold Sept 2018
£16,000140b, Blackstock Road, London, N4 2DX
Sold Sept 2016
£585,000140a 140b, Blackstock Road, Islington, London, N4 2DX
Sold May 2016
£373,000142a, Blackstock Road, Islington, London, N4 2DX
Sold Apr 2006
£410,000
Everything we know about 128a, 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 Blackstock Road homes
128a outperforms the street on years held by a wide margin.
Price per m²
£2,748
Street avg £4,332
Floor Area
43 m²
Street avg 65 m²
Habitable Rooms
2 rooms
Street avg 3 rooms
CO₂ Emissions
2.2 t/year
Street avg 2.9 t/year
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The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
15/mo
Rising year-on-year across the wider district.
Nearest stop
0.1 km
Monsell Road — bus stop.
Closest school
0.1 km
Gillespie Primary School. 96 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
54.4dB

Night-time· 23:00 – 07:00
44.6dB