100a, Cambridge Street, Westminster, London, SW1V 4QG
About 100a
100a is a mid-terrace house in Westminster, London, London (SW1V 4QG). It has a recorded floor area of 46 m² (around 493 sq ft) and construction records dating it to before 1900. At 46 m² this is the smallest unit on EPC record across the building (46–1402 m²). The building's EPC ratings span E to B across 11 units on file. The latest certificate (November 2008) shows a D (score 65), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 73). The latest certificate is from November 2008, so improvements made since then won't be reflected.
It hasn't traded since October 2000, a hold of 26 years that's notably long for the area. Only one transfer is on record with HM Land Registry, suggesting it has stayed in the same hands for a long time. Today's modelled estimate of £508,000 sits 625.7% above the 2000 sale of £70,000. On a £-per-square-foot basis, the last sale (£142/sq ft) was about 67.7% below the postcode norm. At 46 m² it sits well below the postcode median (145 m² across 13 EPCs), making it one of the more compact homes locally.
Know exactly what you're buying at 100a
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
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Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
Energy performance
100a'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This certificate is over 10 years old and is no longer valid.Expired 24 Nov 2018
EPC Rating
Planning history
100a has no planning applications on record.
The full report still covers planning activity across the surrounding area.
Sales history & valuation
100a's modelled value sits at over four times its earliest registered sale price (2000).
£508,000
Modelled from EPC, postcode comparables.
£70,000
Recorded with HM Land Registry.
Sales timeline
25 October 2000Most recent
£70,000
Median price across the last 5 sales in SW1V 4QG: £950,000 (2025–2018).
Nearby sales in SW1V 4QG
Flat B, 106 Cambridge Street, London, SW1V 4QG
Sold Jul 2025
£580,00088b, Cambridge Street, Westminster, London, SW1V 4QG
Sold Jun 2025
£695,000102 Cambridge Street, Westminster, London, SW1V 4QG
Sold Apr 2024
£3,325,000106a, Cambridge Street, Westminster, London, SW1V 4QG
Sold Sept 2018
£990,000Flat C, 106 Cambridge Street, London, SW1V 4QG
Sold Mar 2016
£1,280,000
Everything we know about 100a, 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?
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- Will it hold its value?

Versus other Cambridge Street homes
On floor area, 100a runs well behind the street norm.
Price per m²
£1,529
Street avg £6,241
Floor Area
46 m²
Street avg 238 m²
Habitable Rooms
2 rooms
Street avg 4 rooms
CO₂ Emissions
2.7 t/year
Street avg 6.2 t/year
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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
0.2 km
Westmoreland Terrace / Sutherland Row — bus stop.
Closest school
0.3 km
Ada National College for Digital Skills. 69 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