65 66, Eccleston Square, Westminster, London, SW1V 1PJ
About 65 66
65 66 is a mid-terrace house in Westminster, London, London (SW1V 1PJ). It has a recorded floor area of 81 m² (around 872 sq ft), construction records dating it to before 1900 and council tax band F. The latest certificate (March 2025) shows an F (score 28), near the bottom of the EPC scale. Earlier certificates rated it C (June 2009); the latest reading is 3 bands lower. Between certificates, lighting went from Very Poor to Very Good; while hot-water efficiency dropped from Very Good to Average and main heating dropped from Very Good to Average. The recommended improvements would lift it to C (score 80), a 3-band jump. Main heating runs on electricity.
At 81 m² it's 25.3% smaller than the typical home in the postcode (109 m² median across 26 EPCs). On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. 5 planning records sit against the property, 5 approved, 0 refused. Past consents include an extension and new windows, meaningful when judging how the property has evolved. Last sold in March 2012, so it's been off the market for around 14 years. Across 1998–2012, sale prices on this property compounded at 8.8% per year. Today's modelled estimate of £791,000 is 22.6% above the 2012 sale price.
Know exactly what you're buying at 65 66
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Already flagged here
Launch offer · save £5
Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
Energy performance
65 66 sits at the bottom of the postcode for energy efficiency — meaningful headroom to improve.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating system changed
Changed to a more efficient fuel source
Heating controls changed
Hot water system changed
More low energy lighting installed
Planning history
65 66 has 2 separate extension applications on the council record.
- Nov 2014ExtensionFullIn report
Extension: Rear of property
Replacement of doors to first floor rear extension.
- Agent
- Geddes Walker Architects
- Documents
- 7 docs on file
- Reference
- 14/09006/FULL
- Nov 2014ExtensionHeritageIn report
Extension: Rear of property
Replacement of doors to first floor rear extension.
- Agent
- Geddes Walker Architects
- Documents
- 7 docs on file
- Reference
- 14/09007/LBC
We flagged 1 thing worth checking at 65 66
Independent checks surfaced things a buyer would want to understand before offering. The report explains each one in full, with the underlying data and what to ask.
- Larger development activity nearby
30-day money-back guarantee
Sales history & valuation
65 66 has more than tripled in price since its earliest registered sale in 1998.
£791,000
Modelled from EPC, postcode comparables and a sale-price growth of 8.8% per year over 14 years.
£645,000
Growth on file: 8.8% per year over 14 years.
Sales timeline
7 March 2012Most recent
£645,000
+57.3%over 7 years6 May 2004
£410,000
+103.0%over 5 years4 June 1998
£202,000
Median price across the last 5 sales in SW1V 1PJ: £1,425,000 (2025–2023).
Nearby sales in SW1V 1PJ
74a, Eccleston Square, London, SW1V 1PJ
Sold Jul 2025
£1,425,000Flat 3, 68 Eccleston Square, London, SW1V 1PJ
Sold Nov 2024
£1,475,00065 66, Flat D, Eccleston Square, London, SW1V 1PJ
Sold Apr 2024
£1,150,000Flat 1, 68 Eccleston Square, London, SW1V 1PJ
Sold Oct 2023
£1,475,00073 Eccleston Square, Westminster, London, SW1V 1PJ
Sold Sept 2023
£33,500
Everything we know about 65 66, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
What we flagged
- Larger development activity nearby

Versus other Eccleston Square homes
On epc rating, 65 66 runs well behind the street norm.
Price per m²
£7,963
Street avg £11,442
Floor Area
81 m²
Street avg 100 m²
Habitable Rooms
4 rooms
Street avg 4 rooms
CO₂ Emissions
9.9 t/year
Street avg 3.8 t/year
Similar properties nearby
1 Charlotte Place, Westminster
SW1V 1DP
10 Hugh Mews, Westminster
SW1V 1QH
10 Guildhouse Street, Westminster
SW1V 1JE
10a, Eccleston Square, Westminster
SW1V 1NP
10 Upper Tachbrook Street, Westminster
SW1V 1SH
100a, Warwick Way, Westminster
SW1V 1SD
105 Warwick Way, Westminster
SW1V 1QL
1 Eccleston Square, Westminster
SW1V 1NP
The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
12/mo
Rising year-on-year across the wider district.
Nearest stop
0.2 km
Warwick Way — bus stop.
Closest school
0.4 km
Ada National College for Digital Skills. 67 schools nearby.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.
Road noise across the postcode

Daytime· 07:00 – 23:00
59.7dB

Night-time· 23:00 – 07:00
49.8dB