15a, Winchester Street, Westminster, London, SW1V 4PA
About 15a
15a is a two-bedroom mid-terrace house in Westminster, London, London (SW1V 4PA). It has a recorded floor area of 61 m² (around 662 sq ft), construction records dating it to before 1900 and council tax band E. At 61 m² this is the 9th smallest of 13 units on EPC record in the building, where floor areas span 31–98 m². The building's EPC ratings span E to C, with this unit at the top. The latest certificate (July 2010) shows a C (score 74). The latest certificate is from July 2010, so improvements made since then won't be reflected.
Untraded for 30 years, with the last transfer in July 1996. Only one transfer is on record with HM Land Registry, suggesting it has stayed in the same hands for a long time. At 61 m² the property is well over the postcode median (45 m² across 27 EPCs), placing it in the larger end of the local stock. Today's modelled estimate of £623,000 sits 312.6% above the 1996 sale of £151,000. On a £-per-square-foot basis, the last sale (£228/sq ft) was about 68.4% below the postcode norm.
Know exactly what you're buying at 15a
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Launch offer · save £5
Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
What this property has
Inside
- Bedrooms2
Energy performance
15a's EPC is over a decade old — improvements since won't be reflected.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 29 Jul 2020
EPC Rating
Planning history
15a has no planning applications on record.
The full report still covers planning activity across the surrounding area.
Sales history & valuation
15a's modelled value sits at over four times its earliest registered sale price (1996).
£623,000
Modelled from EPC, postcode comparables.
£151,000
Recorded with HM Land Registry.
Sales timeline
28 July 1996Most recent
£151,000
Median price across the last 5 sales in SW1V 4PA: £530,000 (2025–2018).
Nearby sales in SW1V 4PA
Flat 3, 7 Winchester Street, London, SW1V 4PA
Sold May 2025
£565,000Flat E, 9 Winchester Street, London, SW1V 4PA
Sold Oct 2024
£440,000Flat B, 9 Winchester Street, London, SW1V 4PA
Sold Oct 2022
£530,000Flat 1, 7 Winchester Street, London, SW1V 4PA
Sold Mar 2022
£680,000Flat B, 11 Winchester Street, Westminster, London, SW1V 4PA
Sold May 2018
£25,350
Everything we know about 15a, 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 Winchester Street homes
15a outperforms the street on years held by a wide margin.
Price per m²
£2,457
Street avg £10,485
Floor Area
61 m²
Street avg 49 m²
Habitable Rooms
2 rooms
Street avg 3 rooms
CO₂ Emissions
2.3 t/year
Street avg 1.9 t/year
Similar properties nearby
101 St Georges Drive, Westminster
SW1V 4DA
1 Alderney Street, Westminster
SW1V 4ES
100 Cambridge Street, Westminster
SW1V 4QG
10 Westmoreland Terrace, Westminster
SW1V 4AF
1 Sussex Street, Westminster
SW1V 4RZ
10 Sussex Street, Westminster
SW1V 4RS
10 Sutherland Row, Westminster
SW1V 4JT
100 Alderney Street, Westminster
SW1V 4EZ
The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
12/mo
Rising year-on-year across the wider district.
Nearest stop
0.1 km
Winchester Street — bus stop.
Closest school
0.2 km
St Gabriel's CofE Primary School. 70 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
59.3dB

Night-time· 23:00 – 07:00
49.2dB