Flat A, 4 Leinster Square, London, W2 4PL
About Flat A
Flat A is a mid-terrace house in London (W2 4PL). It has a recorded floor area of 40 m² (around 431 sq ft) and construction records dating it to before 1900. The latest certificate (April 2021) shows a C (score 69), just inside the C band. When first surveyed in November 2011 the rating was F, the property has climbed 3 bands since. Between certificates, wall efficiency went from Very Poor to Good, roof efficiency went from Very Poor to Good and window efficiency went from Average to Good. Main heating runs on electricity.
3 planning records sit against the property, 2 approved, 0 refused, 1 pending. Past consents include new windows, meaningful when judging how the property has evolved. An active application for new windows is awaiting a decision. The record references listed-building consent, which constrain future alterations. At 40 m² it sits well below the postcode median (58 m² across 39 EPCs), making it one of the more compact homes locally. Across 2014–2022, sale prices on this property compounded at 10.1% per year. On a £-per-square-foot basis, the last sale (£1,301/sq ft) was about 60.9% above the typical sold price in the postcode. Last sale on file: £560,000 in August 2022. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Hot water system upgraded
Window efficiency improved
Wall insulation improved
Roof insulation improved
More low energy lighting installed
Planning history
Flat A has a listed-building consent on record — alterations to a listed property are tightly controlled.
- Jan 2023RenovationHeritageIn report
Internal alterations consisting of 2 new partitions to form a study area and to separate the bedroom from access to the rear balcony.
- Agent
- Studio DJL
- Documents
- 12 docs on file
- Reference
- 22/08479/LBC
- Sept 2022RenovationHeritageIn report
Replacement windows front and back of roof mansard (Retrospective application). (Linked with 22/04391/FULL)
- Agent
- Paul Stevenson Design
RetrospectiveNew Windows- Documents
- 17 docs on file
- Reference
- 22/04392/LBC
We flagged 2 things worth checking at Flat A
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
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Sales history & valuation
Sale price has at least doubled since 2014.
£543,000
Modelled from EPC, postcode comparables and a sale-price growth of 10.1% per year over 8 years.
£560,000
Growth on file: 10.1% per year over 8 years.
Sales timeline
2 August 2022Most recent
£560,000
+124.0%over 8 years18 March 2014
£250,000
Median price across the last 5 sales in W2 4PL: £650,000 (2025–2021).
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
£4,120,000Basement Flat, 1 Leinster Square, Westminster, London, W2 4PL
Sold Jan 2021
£500,000
Versus other Leinster Square homes
On floor area, Flat A runs well behind the street norm.
Price per m²
£14,000
Street avg £10,994
Floor Area
40 m²
Street avg 106 m²
Habitable Rooms
2 rooms
Street avg 4 rooms
CO₂ Emissions
2.0 t/year
Street avg 2.6 t/year
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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







