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Get startedBasil Mansions, Flat 12, Basil Street, Kensington And Chelsea, London, SW3 1AP
3 sales on record
About Basil Mansions
A plain-English summary derived from public records, EPC certificates, sold prices and local data.
Basil Mansions is a four-bedroom mid-terrace house in Kensington And Chelsea, London, London (SW3 1AP). It has a recorded floor area of 239 m² (around 2573 sq ft) and construction records dating it to before 1900. At 239 m² this is the 19th smallest of 22 units on EPC record in Basil Mansions, where floor areas span 20–245 m². The building's EPC ratings span F to B across 22 units on file. Other recorded features include a balcony. The latest certificate (June 2020) shows a C (score 75), near the top of the C band. The recommended improvements would push it to B (score 84).
Sale prices here have outpaced London HPI: 25.4% per year against 0% for the wider region. Today's modelled estimate of £3,735,000 is 32.7% below the 2022 sale of £5,550,000, running counter to the wider postcode trend, which makes the EPC and condition history especially worth a look. On a £-per-square-foot basis, the last sale (£2,157/sq ft) was about 146.5% above the typical sold price in the postcode. At 239 m² the property is well over the postcode median (182 m² across 21 EPCs), placing it in the larger end of the local stock. 2 planning records sit against the property, 1 approved, 0 refused. Past consents include subdivision, meaningful when judging how the property has evolved. Most recent transfer: June 2022 at £5,550,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
What this property has
Pulled from EPC certificates, claim submissions and our property model. Empty categories are hidden — we only show what's known.
Inside
- Bedrooms4
- Bathrooms4
- Dining roomYes
- Utility roomYes
Energy performance
Every EPC certificate filed against this property — current rating, recorded improvements, and where there's headroom to reach a higher band.
EPC Rating
A
B
C
C75
D
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Good
CO2 Emissions
5.5 t/year
Occupancy
Owner Occupied
Planning history
Applications and permits filed against Basil Mansions, Flat 12, Basil Street, Kensington And Chelsea, London, SW3 1AP, sourced from the PlanIt planning register.
Council records show a subdivision application — the property's legal arrangement has been altered.
- Apr 2022SubdivisionSNN Verify address
Verification Order required for the renumbering of Flat 12 And 12A and Flat 12B Basil Mansions, Basil Street, LONDON, SW3 1AP, as follows:Flat 12 And 12A Basil Mansions, Basil Street, LONDON, SW3 1AP to be renumbered as Flat 12 Basil Mansions, Basil Street, LONDON, SW3 1APFlat 12B Basil Mansions, Basil Street, LONDON, SW3 1AP to be renumbered as Flat 12A Basil Mansions, Basil Street, LONDON, SW3 1APThe address - Flat 12B Basil Mansions, Basil Street, LONDON, SW3 1AP - To be deleted.
Sales history & valuation
Recorded transactions, our model's current estimate, and a quick read on what neighbouring properties have sold for.
Price for Basil Mansions has grown more than fourfold since the 2004 starting point.
Current estimate
See how we calculated this£3,735,000
Modelled from EPC, postcode comparables and a sale-price growth of 25.4% per year over 18 years.
Last sold (2022)
£5,550,000
Growth on file: 25.4% per year over 18 years.
Sales timeline
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The complete analysis of Basil Mansions, Flat 12, Basil Street, Kensington And Chelsea, London, SW3 1AP
Everything we know about this property, compiled into one in-depth, downloadable report.
Versus other Basil Street homes
Four headline reads against 21 similar flats on this street, drawn from the latest EPC and Land Registry data.
EPC Rating for Basil Mansions runs comfortably ahead of the street norm.
Price per m²
£23,222
Street avg £14,049
Floor Area
239 m²
Street avg 145 m²
Habitable Rooms
6 rooms
Similar properties nearby
A handful of close matches in the same postcode area, ranked by likeness on bedrooms, type and floor area.
The neighbourhood at a glance
A condensed read of the local area. Each tile links through to the full breakdown on the London district page.
Rail-style transport is unusually close for this postcode.
Crime
9/mo
Rising year-on-year across the wider district.
Nearest stop
0.1 km
Sloane Street / Knightsbridge Station — bus stop.
Road noise across the postcode
Modelled day and night-time noise levels around SW3 1AP from Defra's strategic mapping. The pin marks this postcode's centroid.
Daytime· 07:00 – 23:00
58.2dB
Everything within walking distance
Schools, transport stops and scenic spots near this property — 81 points of interest in total.
Common questions
The questions buyers, sellers and homeowners most often ask about Basil Mansions, Flat 12, Basil Street, Kensington And Chelsea, London, SW3 1AP. Each answer is also embedded as structured data for search engines.