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Get startedMountfort House, Flat 5, 15 Barnsbury Square, Islington, London, N1 1JL
4 sales on record
About Mountfort House
A plain-English summary derived from public records, EPC certificates, sold prices and local data.
Mountfort House is a two-bedroom detached house in Islington, London, London (N1 1JL). It has a recorded floor area of 100 m² (around 1076 sq ft) and construction records dating it to 1930-1949. The latest certificate (February 2023) shows a D (score 68), on the cusp of jumping into the C band. When first surveyed in October 2009 the rating was F, the property has climbed 2 bands since. Between certificates, roof efficiency went from Very Poor to Average, window efficiency went from Very Poor to Good and lighting went from Very Poor to Very Good. The recommended improvements would push it to C (score 79). At 100 m² this is the 3rd smallest of 5 units on EPC record in Mountfort House, where floor areas span 73–198 m². The building's EPC ratings span E to C across 5 units on file.
Sale prices here have outpaced London HPI: 7.9% per year against 0% for the wider region. 4 planning records sit against the property, 4 approved, 0 refused. Past consents include new windows, meaningful when judging how the property has evolved. The record references listed-building consent, which constrain future alterations. Sold October 2023 for £1,230,000.
What this property has
Pulled from EPC certificates, claim submissions and our property model. Empty categories are hidden — we only show what's known.
Inside
- Bedrooms2
Building
- Heating systemgas
Energy performance
Every EPC certificate filed against this property — current rating, recorded improvements, and where there's headroom to reach a higher band.
Current Certificate(1 of 3)
Feb 2023
EPC Rating
A
B
C
D
D68
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Good
CO2 Emissions
3.5 t/year
Occupancy
Owner Occupied
Planning history
Applications and permits filed against Mountfort House, Flat 5, 15 Barnsbury Square, Islington, London, N1 1JL, sourced from the PlanIt planning register.
Mountfort House has multiple listed-building consents on file — alterations need formal heritage approval.
- May 2025RenovationHeritageApprove with conditions
Repair and replacement of the staircase window on the rear elevation.
Sales history & valuation
Recorded transactions, our model's current estimate, and a quick read on what neighbouring properties have sold for.
Mountfort House has more than quadrupled in price since its earliest registered sale in 1995.
Current estimate
See how we calculated this£1,207,000
Modelled from EPC, postcode comparables and a sale-price growth of 7.9% per year over 28 years.
Last sold (2023)
£1,230,000
Growth on file: 7.9% per year over 28 years.
Sales timeline
Versus other Barnsbury Square homes
Four headline reads against 26 similar flats on this street, drawn from the latest EPC and Land Registry data.
On co₂ emissions, Mountfort House runs well behind the street norm.
Price per m²
£12,300
Street avg £12,773
Floor Area
100 m²
Street avg 103 m²
Habitable Rooms
3 rooms
Street avg 3 rooms
Similar properties nearby
A handful of close matches in the same postcode area, ranked by likeness on bedrooms, type and floor area.
The neighbourhood at a glance
A condensed read of the local area. Each tile links through to the full breakdown on the London district page.
Rail-style transport is unusually close for this postcode.
Crime
10/mo
Rising year-on-year across the wider district.
Nearest stop
0.2 km
The Hemingford Arms — bus stop.
Road noise across the postcode
Modelled day and night-time noise levels around N1 1JL from Defra's strategic mapping. The pin marks this postcode's centroid.
Daytime· 07:00 – 23:00
55.0dB
Everything within walking distance
Schools, transport stops and scenic spots near this property — 128 points of interest in total.
Beautiful places to visit nearby
Curated scenic spots within reach of this postcode, served by Beautifulplaces.ai. Photography and tagging come from their open dataset.
Common questions
The questions buyers, sellers and homeowners most often ask about Mountfort House, Flat 5, 15 Barnsbury Square, Islington, London, N1 1JL. Each answer is also embedded as structured data for search engines.