3a, Leinster Square, Westminster, London, W2 4PL
About 3a
3a is a mid-terrace house in Westminster, London, London (W2 4PL). It has a recorded floor area of 151 m² (around 1625 sq ft) and construction records dating it to 1900-1929. At 151 m² this is the 8th smallest of 13 units on EPC record in the building, where floor areas span 42–356 m². The building's EPC ratings span E to C across 13 units on file. The latest certificate (April 2018) shows a D (score 66), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 76).
At 151 m² the property is well over the postcode median (53 m² across 39 EPCs), placing it in the larger end of the local stock.
Energy performance
EPC Rating
Planning history
3a has no planning applications on record.
Notable planning nearby
10applications of note in the surrounding area
We flagged 2 things worth checking at 3a
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.
- Signs of HMO activity in the area
- Larger development activity nearby
30-day money-back guarantee
Sales history & valuation
3a has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£2,075,000
Modelled from EPC, postcode comparables.
No sales recorded with HM Land Registry
That can mean the property has never traded since the registry began publishing in 1995, was a new build that hasn't been registered yet, or is held in the same hands long-term.
Median price across the last 5 sales in W2 4PL: £650,000 (2025–2022).
Nearby sales in W2 4PL
Flat 1, 1 Leinster Square, London, W2 4PL
Sold Jun 2025
£27,000Flat L, 4 Leinster Square, Westminster, London, W2 4PL
Sold Sept 2024
£857,500Ground Floor Flat, 2 Leinster Square, London, W2 4PL
Sold Sept 2023
£650,00010 Leinster Square, Westminster, London, W2 4PL
Sold May 2023
£4,120,000Flat A, 4 Leinster Square, London, W2 4PL
Sold Aug 2022
£560,000
Versus other Leinster Square homes
3a is notably below the street on co₂ emissions.
EPC Rating
66 (D)
Street avg 65 (D)
Floor Area
151 m²
Street avg 103 m²
CO₂ Emissions
5.1 t/year
Street avg 2.5 t/year
Habitable Rooms
5 rooms
Street avg 3 rooms
Similar properties nearby
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The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
19/mo
Rising year-on-year across the wider district.
Nearest stop
0.1 km
Chepstow Rd / Westbourne Grove — bus stop.
Closest school
0.5 km
Hallfield Primary School. 74 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
59.6dB

Night-time· 23:00 – 07:00
50.1dB







