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Get started99 Bell Street is a mid-terrace house in Westminster, London, London (NW1 6TL). It has a recorded floor area of 59 m² (around 635 sq ft) and construction records dating it to before 1900. The latest certificate (October 2023) shows a D (score 66), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since June 2012. Between certificates, lighting went from Very Poor to Very Good; while roof efficiency dropped from Average to Very Poor. The recommended improvements would push it to C (score 78).
Sale prices here have outpaced London HPI: 6.1% per year against 0% for the wider region. Today's modelled estimate of £611,000 is 39.2% above the 2013 sale price. On a £-per-square-foot basis, the last sale (£691/sq ft) was about 31.7% below the postcode norm. At 59 m² the property is well over the postcode median (34 m² across 12 EPCs), placing it in the larger end of the local stock. 13 years since the last transfer (September 2013). One planning record on file: an extension refused in 2020.
Extension: Rear of property
Erection of a rear infill extension at lower ground floor level, alterations to shopfront, and internal alterations in association with the use of the lower ground and ground floors as a duplex apartment (Use Class C3)
99 Bell Street valuation sits well clear of the typical sold price in this postcode.
£611,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.1% per year over 11 years.
£439,000
Growth on file: 6.1% per year over 11 years.
On price per m², 99 Bell Street runs well behind the street norm.
Price per m²
£7,441
Street avg £13,727
Floor Area
59 m²
Street avg 41 m²
Habitable Rooms
3 rooms
Rail-style transport is unusually close for this postcode.
Crime
18/mo
Rising year-on-year across the wider district.
Nearest stop
0.2 km
Marylebone Underground Station — subway entrance.

Daytime· 07:00 – 23:00
61.9dB

Changes detected from historical EPC data
More low energy lighting installed
Are we missing something? Tell us about home improvements to help adjust your valuation.
23 September 2013Most recent
£439,000
+75.6%over 9 years9 January 2004
£250,000
+9.2%over 1 year24 September 2002
£229,000
Median price across the last 5 sales in NW1 6TL: £450,000 (2025–2021).
Street avg 2 rooms
CO₂ Emissions
2.5 t/year
Street avg 2.3 t/year
Closest school
0.1 km
Christ Church Bentinck CofE Primary School. 62 schools nearby.
Night-time· 23:00 – 07:00
52.7dB
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