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Get started15 Astell Street, Kensington And Chelsea, London, SW3 3RT
3 planning records
About 15 Astell Street
A plain-English summary derived from public records, EPC certificates, sold prices and local data.
15 Astell Street is a one-bedroom mid-terrace house in Kensington And Chelsea, London, London (SW3 3RT). It has a recorded floor area of 229 m² (around 2465 sq ft), construction records dating it to 1930-1949 and council tax band H. The latest certificate (October 2018) shows an E (score 51), well below the UK norm with real room to improve. Earlier certificates rated it D (November 2008); the latest reading is one band lower. Between certificates, window efficiency went from Very Poor to Average; while lighting dropped from Poor to Very Poor. The recommended improvements would lift it to C (score 78), a 2-band jump.
Today's modelled estimate of £4,122,000 is 27% below the 2025 sale of £5,650,000, below the original sale price, which typically signals condition or completion-status changes worth verifying. On a £-per-square-foot basis, the last sale (£2,292/sq ft) was about 154.8% above the typical sold price in the postcode. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. A recent sale: £5,650,000 in May 2025. 3 planning records sit against the property, 2 approved, 0 refused. Past consents include tree works, meaningful when judging how the property has evolved.
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
- Bedrooms1
Energy performance
Every EPC certificate filed against this property — current rating, recorded improvements, and where there's headroom to reach a higher band.
15 Astell Street sits at the bottom of the postcode for energy efficiency — meaningful headroom to improve.
Current Certificate(1 of 2)
Oct 2018
EPC Rating
A
B
C
D
E
E51
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Average
CO2 Emissions
12.0 t/year
Occupancy
Owner Occupied
Planning history
Applications and permits filed against 15 Astell Street, Kensington And Chelsea, London, SW3 3RT, sourced from the PlanIt planning register.
Planning history at 15 Astell Street is exclusively tree-management applications — typical for a property with mature trees on or near the plot.
- Jul 2021Tree WorksTreesGrant Planning Permission/Consent
FELL 1 x Cherry (front)
Sales history & valuation
Recorded transactions, our model's current estimate, and a quick read on what neighbouring properties have sold for.
15 Astell Street valuation sits well clear of the typical sold price in this postcode.
Current estimate
See how we calculated this£4,122,000
Modelled from EPC, postcode comparables.
Last sold (2025)
£5,650,000
Recorded with HM Land Registry.
Sales timeline
Full property reportLaunch offer · 33% off
The complete analysis of 15 Astell Street, Kensington And Chelsea, London, SW3 3RT
Everything we know about this property, compiled into one in-depth, downloadable report.
Versus other Astell Street homes
Four headline reads against 10 similar houses on this street, drawn from the latest EPC and Land Registry data.
15 Astell Street is notably below the street on epc rating.
Price per m²
£24,672
Street avg £19,400
Floor Area
229 m²
Street avg 262 m²
Habitable Rooms
9 rooms
Street avg 7 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
0.2 km
Chelsea Old Town Hall — bus stop.
Road noise across the postcode
Modelled day and night-time noise levels around SW3 3RT from Defra's strategic mapping. The pin marks this postcode's centroid.
Daytime· 07:00 – 23:00
56.7dB
Everything within walking distance
Schools, transport stops and scenic spots near this property — 86 points of interest in total.
Common questions
The questions buyers, sellers and homeowners most often ask about 15 Astell Street, Kensington And Chelsea, London, SW3 3RT. Each answer is also embedded as structured data for search engines.