12a, Red Lion Street, Richmond, TW9 1RW
About 12a
12a is a four-bedroom mid-terrace house in Richmond (TW9 1RW). It has a recorded floor area of 117 m² (around 1259 sq ft), construction records dating it to 1900-1929 and council tax band C. The latest certificate (November 2022) shows a C (score 69), just inside the C band. When first surveyed in October 2021 the rating was D, the property has climbed 1 band since. Between certificates, window efficiency went from Average to Good, hot-water efficiency went from Good to Very Good and lighting went from Good to Very Good. The recommended improvements would push it to B (score 81).
Held since March 2002 — that's 24 years off the open market, well above the local norm. At 117 m² the property is well over the postcode median (49 m² across 17 EPCs), placing it in the larger end of the local stock. Across 1997–2002, sale prices on this property compounded at 7.1% per year. Today's modelled estimate of £1,037,000 sits 184.1% above the 2002 sale of £365,000. On a £-per-square-foot basis, the last sale (£290/sq ft) was about 61.4% below the postcode norm. 2 planning records sit against the property, 0 approved, 1 refused.
What this property has
Inside
- Bedrooms4
- Bathrooms2
- Utility roomYes
- EnsuiteYes
Outside
- Private gardenSouth-facing
Energy performance
EPC Rating
Certificate validity
Valid until 8 November 2032
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Hot water system upgraded
Windows upgraded, improving insulation
More low energy lighting installed
Solar water heating installed
Get a survey for this property
Level 3 Building Survey
Because the property was built before 1919 and has solid (non-cavity) walls, we believe a Level 3 building survey should be considered.
From £1,645 · Includes VAT
Planning history
A subdivision application was refused at 12a in 2022.
2 applications on record at 12a, Red Lion Street, Richmond, TW9 1RW
- Aug 2021SubdivisionFullOutcome in report
Infill existing second floor lightwell and installation of 4 rooflights to facilitate the conversion of existing 3 bed maisonette into 2 x 1 bed flats at first and second floor levels
- Documents
- 14 docs on file
- Reference
- 21/1529/FUL
- More recent applications — locked
- SubdivisionMay 2022Decision
Unlock 12a, Red Lion Street, Richmond, TW9 1RW's full planning history
You're seeing the shape of it. The report has the substance.
- Every decision — granted, refused or withdrawn (1 on record)
- All 2 applications on this property in full, plus 7 notable nearby
- The 28 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
12a's estimated value is more than triple its earliest registered sale price (1997).
£1,037,000
Modelled from EPC, postcode comparables and a sale-price growth of 7.1% per year over 4 years.
£365,000
Growth on file: 7.1% per year over 4 years.
Sales timeline
26 March 2002Most recent
£365,000
+34.8%over 4 years25 November 1997
£270,700
Median price across the last 5 sales in TW9 1RW: £435,000 (2024–2021).
Nearby sales in TW9 1RW
Versus other Red Lion Street homes
On floor area, 12a stands well clear of the street.
Price per m²
£3,120
Street avg £7,489
Floor Area
117 m²
Street avg 58 m²
Habitable Rooms
6 rooms
Street avg 3 rooms
CO₂ Emissions
3.7 t/year
Street avg 2.7 t/year
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The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
225/mo
Steady year-on-year across the wider district.
Nearest stop
0.0 km
Richmond Bus Station — bus stop.
Closest school
0.6 km
Richmond and Hillcroft Adult and Community College (Rhacc). 37 schools nearby.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.
Road noise across the postcode

Daytime· 07:00 – 23:00
56.8dB

Night-time· 23:00 – 07:00
48.1dB







