Flat A, 21 Birnam Road, London, N4 3LJ
About Flat A
Flat A is a mid-terrace house in London (N4 3LJ). It has a recorded floor area of 46 m² (around 495 sq ft) and construction records dating it to 1900-1929. The latest certificate (October 2022) shows a D (score 66), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 76).
2 planning records sit against the property, 2 approved, 0 refused. Past consents include an extension and a basement excavation, meaningful when judging how the property has evolved. Across 2002–2024, sale prices on this property compounded at 4.5% per year. On a £-per-square-foot basis, the last sale (£1,171/sq ft) was about 188.1% above the typical sold price in the postcode. At 46 m² it's 27% smaller than the typical home in the postcode (63 m² median across 59 EPCs). Last sale on file: £580,000 in May 2024.
Know exactly what you're buying at Flat A
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
Energy performance
EPC Rating
Planning history
Flat A has an approved single-storey side and rear extension on the planning record.
- Nov 2024ExtensionFullIn report
Extension: Single storey · Side and rear of property
Erection of single storey side/rear infill extension to existing ground floor bay window
- Documents
- 9 docs on file
- Reference
- P2024/2669/FUL
- Nov 2024BasementFullIn report
Front garden boundary treatment including erection of metal railings and gate; formation of new bin store; installation of front basement lightwell with associated front facing window and railings and installation of French doors to the rear of the basement.
- Documents
- 10 docs on file
- Reference
- P2024/2404/FUL
What's in Flat A, 21 Birnam Road, London, N4 3LJ's planning history?
Refusals, disputes and full decisions on this property and nearby, in the report.
Sales history & valuation
Flat A has more than doubled in price since the earliest registered sale in 2002.
£593,000
Modelled from EPC, postcode comparables and a sale-price growth of 4.5% per year over 22 years.
£580,000
Growth on file: 4.5% per year over 22 years.
Sales timeline
2 May 2024Most recent
£580,000
+157.8%over 21 years19 September 2002
£225,000
Median price across the last 5 sales in N4 3LJ: £650,000 (2024–2022).
Nearby sales in N4 3LJ
Basement & Ground Floor Flat, 23 Birnam Road, London, N4 3LJ
Sold Oct 2024
£650,000First Floor Flat, 27 Birnam Road, London, N4 3LJ
Sold May 2024
£650,00059 Birnam Road, Islington, London, N4 3LJ
Sold Aug 2023
£785,0003 Birnam Road, Islington, London, N4 3LJ
Sold Dec 2022
£950,000Flat C, 61 Birnam Road, Islington, London, N4 3LJ
Sold Nov 2022
£590,000
Everything we know about Flat A, 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?

Versus other Birnam Road homes
On years held, Flat A runs well behind the street norm.
Price per m²
£12,609
Street avg £6,867
Floor Area
46 m²
Street avg 66 m²
Habitable Rooms
3 rooms
Street avg 3 rooms
CO₂ Emissions
2.1 t/year
Street avg 2.8 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
0.2 km
Tollington Park Holloway — bus stop.
Closest school
0.2 km
Christ The King Catholic Primary School. 83 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
55.5dB

Night-time· 23:00 – 07:00
45.2dB