12 Sebastian Street, Islington, London, EC1V 0JA
About 12 Sebastian Street
12 Sebastian Street is a two-bedroom mid-terrace house in Islington, London, London (EC1V 0JA). It has a recorded floor area of 250 m² (around 2691 sq ft), construction records dating it to before 1900 and council tax band G. The latest certificate (October 2020) shows a D (score 64), on the cusp of jumping into the C band. The recommended improvements would lift it to B (score 84), a 2-band jump.
5 planning records sit against the property, 4 approved, 0 refused. The record references listed-building consent, which constrain future alterations. Last changed hands 9 years ago, in April 2017. Across 1996–2017, sale prices on this property compounded at 13.1% per year.
Know exactly what you're buying at 12 Sebastian Street
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
- Bedrooms2
- Bathrooms2
Energy performance
12 Sebastian Street's carbon output runs well above what efficient homes in the postcode produce.
EPC Rating
Planning history
12 Sebastian Street has multiple listed-building consents on file — alterations need formal heritage approval.
- Feb 2025ConditionsIn report
CONDITION No.3 : Notwithstanding the approved plans, no permission is granted for any form of vertical damp proof course other than a cavity drain membrane system. A method statement detailing the proposed form of damp proofing shall be submitted to and approved in writing by the Local Planning Authority prior to the relevant works commencing. REASON: In order to safeguard the special architectural or historic interest of the heritage asset. CONDITION No.4 : Internal elevations for the proposed timber paneled wall to the lower ground floor rear room shall be submitted to and approved in writing by the Local Authority prior to the relevant works commencing. REASON: In order to safeguard the special architectural or historic interest of the heritage asset.
- Documents
- 7 docs on file
- Reference
- P2024/3738/AOD
- Dec 2018RenovationHeritageIn report
Addition of 3 No. Air Bricks into the existing facade and reinstating a new lantern light archway over the entrance.
Listed- Documents
- 7 docs on file
- Reference
- P2018/3561/LBC
What's in 12 Sebastian Street, Islington, London, EC1V 0JA's planning history?
3 more on this property, plus refusals, disputes and full decisions nearby, in the report.
Sales history & valuation
Price for 12 Sebastian Street has grown more than fourfold since the 1996 starting point.
£2,402,000
Modelled from EPC, postcode comparables and a sale-price growth of 13.1% per year over 21 years.
£2,385,000
Growth on file: 13.1% per year over 21 years.
Sales timeline
27 April 2017Most recent
£2,385,000
+854.0%over 19 years15 October 1997
£250,000
+42.9%over 1 year7 February 1996
£175,000
Everything we know about 12 Sebastian Street, 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
51.1dB