Are you a property professional?Get qualified leads from motivated homeowners.
Get started31 Knox Street, Westminster, London, W1H 1FS
9 planning records
About 31 Knox Street
A plain-English summary derived from public records, EPC certificates, sold prices and local data.
31 Knox Street is a four-bedroom mid-terrace house in Westminster, London, London (W1H 1FS). It has a recorded floor area of 164 m² (around 1765 sq ft), construction records dating it to before 1900 and council tax band G. The property has underfloor heating on record, all of which lower running costs and tend to lift resale appeal. Other recorded features include a balcony. The latest certificate (June 2025) shows a D (score 55), a step below the typical UK home. The rating has held steady at D across 2 certificates since February 2011. Between certificates, roof efficiency went from Very Poor to Average and lighting went from Very Poor to Good; while window efficiency dropped from Poor to Very Poor and hot-water efficiency dropped from Very Good to Good.
Held since September 2005 — that's 21 years off the open market, well above the local norm. Sale prices here have outpaced London HPI: 8.1% per year against 0% for the wider region. Today's modelled estimate of £2,273,000 sits 141.2% above the 2005 sale of £942,500. On a £-per-square-foot basis, the last sale (£534/sq ft) was about 53.7% below the postcode norm. 9 planning records sit against the property, 6 approved, 2 refused, 1 pending. Past consents include new windows, an extension, a basement excavation and subdivision, meaningful when judging how the property has evolved. An application is currently awaiting a decision. The record references listed-building consent, which constrain future alterations. At 164 m² it's 21% larger than the typical home in the postcode (136 m² median across 4 EPCs).
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
- Bathrooms3
- Dining roomYes
Outside
- Private garden
Energy performance
Every EPC certificate filed against this property — current rating, recorded improvements, and where there's headroom to reach a higher band.
31 Knox Street's carbon output runs well above what efficient homes in the postcode produce.
Current Certificate(1 of 2)
Jun 2025
EPC Rating
A
B
C
D
D55
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Very Poor
CO2 Emissions
7.7 t/year
Occupancy
Owner Occupied
Planning history
Applications and permits filed against 31 Knox Street, Westminster, London, W1H 1FS, sourced from the PlanIt planning register.
Council records show a subdivision application — the property's legal arrangement has been altered.
- May 2022RenovationHeritagePending
Interior alterations including fitted kitchen on the LGF, minor reconfiguration of the 1F with fitted joinery, decoration works throughout and refurbishment of the lower ground front courtyard, and damp proofing works to the LGF.
Sales history & valuation
Recorded transactions, our model's current estimate, and a quick read on what neighbouring properties have sold for.
31 Knox Street's estimated value is more than triple its earliest registered sale price (2001).
Current estimate
See how we calculated this£2,273,000
Modelled from EPC, postcode comparables and a sale-price growth of 8.1% per year over 4 years.
Last sold (2005)
£942,500
Growth on file: 8.1% per year over 4 years.
Sales timeline
Versus other Knox Street homes
Four headline reads against 4 similar houses on this street, drawn from the latest EPC and Land Registry data.
Price per m² for 31 Knox Street lags the street by a wide margin.
Price per m²
£5,747
Street avg £16,145
Floor Area
164 m²
Street avg 137 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
8/mo
Rising year-on-year across the wider district.
Nearest stop
0.1 km
Marylebone Station — bus stop.
Road noise across the postcode
Modelled day and night-time noise levels around W1H 1FS from Defra's strategic mapping. The pin marks this postcode's centroid.
Daytime· 07:00 – 23:00
62.5dB
Everything within walking distance
Schools, transport stops and scenic spots near this property — 89 points of interest in total.
Beautiful places to visit nearby
Curated scenic spots within reach of this postcode, served by Beautifulplaces.ai. Photography and tagging come from their open dataset.
Common questions
The questions buyers, sellers and homeowners most often ask about 31 Knox Street, Westminster, London, W1H 1FS. Each answer is also embedded as structured data for search engines.