Claridge House, Flat 1, 13 Belsize Park, London, NW3 4ES
About Claridge House
Claridge House is an end-of-terrace house in London (NW3 4ES). It has a recorded floor area of 104 m² (around 1119 sq ft), construction records dating it to before 1900 and council tax band G. At 104 m² this is the largest unit on EPC record across Claridge House (41–104 m²). The building's EPC ratings span D to C, with this unit at the bottom. On EPC score it ranks last in the building (58 versus a best of 73). The latest certificate (February 2013) shows a D (score 58), a step below the typical UK home. The recommended improvements would push it to C (score 79). The latest certificate is from February 2013, so improvements made since then won't be reflected.
At 104 m² the property is well over the postcode median (64 m² across 35 EPCs), placing it in the larger end of the local stock. 5 planning records sit against the property, 1 approved, 0 refused. Past consents include new windows, meaningful when judging how the property has evolved.
Know exactly what you're buying at Claridge House
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Already flagged here
Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
Energy performance
Claridge House'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This certificate is over 10 years old and is no longer valid.Expired 21 Feb 2023
EPC Rating
Planning history
- Mar 2020Tree WorksTreesIn report
FRONT GARDEN: 1 x Cotoneaster - Fell to ground level.
- Documents
- 4 docs on file
- Reference
- 2020/0759/T
- Jan 2013Tree WorksTreesIn report
FRONT GARDEN: 1 x Magnolia - Lift crown to 3m. Thin by 25%.
- Documents
- 1 doc on file
- Reference
- 2013/0069/T
We flagged 1 thing worth checking at Claridge House
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.
- Larger development activity nearby
30-day money-back guarantee
Sales history & valuation
Claridge House has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£1,210,000
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 NW3 4ES: £800,000 (2025–2023).
Nearby sales in NW3 4ES
Flat 3, 11 Belsize Park, London, NW3 4ES
Sold Mar 2025
£1,350,000Claridge House, Flat 4, 13 Belsize Park, London, NW3 4ES
Sold Oct 2023
£721,500Flat 4, 14 Belsize Park, London, NW3 4ES
Sold Jun 2023
£745,000Flat 4, 16 Belsize Park, London, NW3 4ES
Sold Jun 2023
£1,700,000Flat 1, 11 Belsize Park, London, NW3 4ES
Sold Apr 2023
£800,000
Everything we know about Claridge House, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
What we flagged
- Larger development activity nearby

Versus other Belsize Park homes
EPC Rating for Claridge House lags the street by a wide margin.
EPC Rating
58 (D)
Street avg 66 (D)
Floor Area
104 m²
Street avg 83 m²
CO₂ Emissions
4.9 t/year
Street avg 3.4 t/year
Habitable Rooms
3 rooms
Street avg 3 rooms
Similar properties nearby
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17a, Flat 2, Lambolle Road, Camden
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15a, Flat B, Eton Road
NW3 4SS
12a, Flat 2, Belsize Park
NW3 4ES
12a, Flat 1, Belsize Park
NW3 4ES
25a, Flat 1, Elizabeth Mews
NW3 4UH
The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
6/mo
Rising year-on-year across the wider district.
Nearest stop
0.1 km
Belsize Square — bus stop.
Closest school
0.5 km
Holy Trinity CofE Primary School, NW3. 67 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
53.1dB

Night-time· 23:00 – 07:00
42.0dB