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Get startedFlat 3, 11 Lowndes Square, London, SW1X 9HB
4 planning records
About Flat 3
A plain-English summary derived from public records, EPC certificates, sold prices and local data.
Flat 3 is a mid-terrace house in London (SW1X 9HB). It has a recorded floor area of 149 m² (around 1604 sq ft) and construction records dating it to before 1900. The latest certificate (December 2022) shows a D (score 64), on the cusp of jumping into the C band. When first surveyed in August 2009 the rating was E, the property has climbed 1 band since. Between certificates, hot-water efficiency went from Average to Good. The recommended improvements would push it to C (score 80).
It hasn't traded since June 2006, a hold of 20 years that's notably long for the area. 4 planning records sit against the property, 2 approved, 0 refused, 2 pending. An active application for an extension is awaiting a decision. The record references listed-building consent, which constrain future alterations. Sale prices here have outpaced London HPI: 13.4% per year against 0% for the wider region. Today's modelled estimate of £2,871,000 sits 105.8% above the 2006 sale of £1,395,000. On a £-per-square-foot basis, the last sale (£870/sq ft) was about 62.8% above the typical sold price in the postcode. At 149 m² it's 16.4% larger than the typical home in the postcode (128 m² median across 19 EPCs).
Energy performance
Every EPC certificate filed against this property — current rating, recorded improvements, and where there's headroom to reach a higher band.
Flat 3's carbon output runs well above what efficient homes in the postcode produce.
Current Certificate(1 of 2)
Dec 2022
EPC Rating
A
B
C
D
D64
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Very Poor
CO2 Emissions
6.2 t/year
Occupancy
Rented
Planning history
Applications and permits filed against Flat 3, 11 Lowndes Square, London, SW1X 9HB, sourced from the PlanIt planning register.
Flat 3 has multiple listed-building consents on file — alterations need formal heritage approval.
- Nov 2024ExtensionFullPending
Extension: Rear of property
Alterations to first and second floors including first floor rear extension to closet wing, replacement of second floor conservatory with new solid extension with flat roof, replacement windows, and internal alterations (First Floor And Second Floor Maisonette). (Linked with 24/07799/LBC)
Sales history & valuation
Recorded transactions, our model's current estimate, and a quick read on what neighbouring properties have sold for.
Flat 3 has more than tripled in price since its earliest registered sale in 1997.
Current estimate
See how we calculated this£2,871,000
Modelled from EPC, postcode comparables and a sale-price growth of 13.4% per year over 9 years.
Last sold (2006)
£1,395,000
Growth on file: 13.4% per year over 9 years.
Sales timeline
Launch offer · 33% off
The complete analysis of Flat 3, 11 Lowndes Square, London, SW1X 9HB
Everything we know about this property, compiled into one in-depth, downloadable report.
Detailed AI analysis
An AI-written breakdown of everything that matters
Versus other Lowndes Square homes
Four headline reads against 19 similar flats on this street, drawn from the latest EPC and Land Registry data.
EPC Rating for Flat 3 lags the street by a wide margin.
Price per m²
£9,362
Street avg £14,217
Floor Area
149 m²
Street avg 162 m²
Habitable Rooms
3 rooms
Street avg 4 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
5/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 SW1X 9HB from Defra's strategic mapping. The pin marks this postcode's centroid.
Daytime· 07:00 – 23:00
59.7dB
Everything within walking distance
Schools, transport stops and scenic spots near this property — 79 points of interest in total.
Common questions
The questions buyers, sellers and homeowners most often ask about Flat 3, 11 Lowndes Square, London, SW1X 9HB. Each answer is also embedded as structured data for search engines.
