Flat L, 4 Leinster Square, Westminster, London, W2 4PL
About Flat L
Flat L is a mid-terrace house in Westminster, London, London (W2 4PL). It has a recorded floor area of 64 m² (around 689 sq ft) and construction records dating it to before 1900. The latest certificate (December 2023) shows a C (score 72).
4 planning records sit against the property, 1 approved, 0 refused, 3 pending. An application is currently awaiting a decision. The record references listed-building consent, which constrain future alterations. At 64 m² it's 20.8% larger than the typical home in the postcode (53 m² median across 39 EPCs). Across 1996–2024, sale prices on this property compounded at 7.4% per year. On a £-per-square-foot basis, the last sale (£1,245/sq ft) was about 54% above the typical sold price in the postcode. Last sale on file: £857,500 in September 2024.
Energy performance
EPC Rating
Planning history
Flat L has multiple listed-building consents on file — alterations need formal heritage approval.
- Mar 2025RenovationHeritageIn report
Internal alterations to existing ground floor flat. Includes removal of chimney breasts, insertion of new doorway, reorganise modern partition walls.
- Agent
- Hushoom Architects
- Documents
- 7 docs on file
- Reference
- 25/02104/LBC
- Jul 2025ConditionsIn report
Details of revised elevations and plans drawings showing any new materials to be used in the extension, including confirmation of timber framed pursuant to condition 2 of listed building dated 20th December 2024 (RN:24/06585/LBC)
- Agent
- Hushoom Architects
Listed- Documents
- 10 docs on file
- Reference
- 25/03887/ADLBC
We flagged 2 things worth checking at Flat L
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
Flat L has more than quadrupled in price since its earliest registered sale in 1996.
£930,000
Modelled from EPC, postcode comparables and a sale-price growth of 7.4% per year over 28 years.
£857,500
Growth on file: 7.4% per year over 28 years.
Sales timeline
1 September 2024Most recent
£857,500
+669.1%over 28 years8 April 1996
£111,500
Median price across the last 5 sales in W2 4PL: £560,000 (2025–2021).
Nearby sales in W2 4PL
Flat 1, 1 Leinster Square, London, W2 4PL
Sold Jun 2025
£27,000Ground 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
£560,000Basement Flat, 1 Leinster Square, Westminster, London, W2 4PL
Sold Jan 2021
£500,000
Versus other Leinster Square homes
On years held, Flat L runs well behind the street norm.
Price per m²
£13,398
Street avg £11,019
Floor Area
64 m²
Street avg 105 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







