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Get started21 Astell Street, Kensington And Chelsea, London, SW3 3RT
4 planning records
About 21 Astell Street
A plain-English summary derived from public records, EPC certificates, sold prices and local data.
21 Astell Street is a four-bedroom mid-terrace house in Kensington And Chelsea, London, London (SW3 3RT). It has a recorded floor area of 220 m² (around 2373 sq ft), construction records dating it to 1900-1929 and council tax band H. The latest certificate (February 2012) shows an E (score 53), well below the UK norm with real room to improve. The recommended improvements would push it to D (score 63). The latest certificate is from February 2012, so improvements made since then won't be reflected.
At 220 m² it's 18% smaller than the typical home in the postcode (269 m² median across 10 EPCs). On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. 4 planning records sit against the property, 1 approved, 0 refused. Past consents include an extension and a basement excavation, meaningful when judging how the property has evolved. On a £-per-square-foot basis, the last sale (£2,025/sq ft) was about 125.1% above the typical sold price in the postcode. 14 years since the last transfer (May 2012).
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
Energy performance
Every EPC certificate filed against this property — current rating, recorded improvements, and where there's headroom to reach a higher band.
21 Astell Street sits at the bottom of the postcode for energy efficiency — meaningful headroom to improve.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 05 Feb 2022
Planning history
Applications and permits filed against 21 Astell Street, Kensington And Chelsea, London, SW3 3RT, sourced from the PlanIt planning register.
21 Astell Street has an approved single-storey rear extension on the planning record.
- Mar 2022Tree WorksTreesRaise No Objection
Prune 1 x Olive (front), 1 x Evergreen Magnolia (rear)
Sales history & valuation
Recorded transactions, our model's current estimate, and a quick read on what neighbouring properties have sold for.
21 Astell Street valuation sits well clear of the typical sold price in this postcode.
Current estimate
See how we calculated this£4,397,000
Modelled from EPC, postcode comparables.
Last sold (2012)
£4,805,000
Recorded with HM Land Registry.
Sales timeline
Full property reportLaunch offer · 33% off
The complete analysis of 21 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.
On epc rating, 21 Astell Street runs well behind the street norm.
Price per m²
£21,794
Street avg £19,760
Floor Area
220 m²
Street avg 263 m²
Habitable Rooms
7 rooms
Street avg 8 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 21 Astell Street, Kensington And Chelsea, London, SW3 3RT. Each answer is also embedded as structured data for search engines.