12b, Theed Street, Lambeth, London, SE1 8ST
About 12b
12b is a three-bedroom mid-terrace house in Lambeth, London, London (SE1 8ST). It has a recorded floor area of 135 m² (around 1453 sq ft), construction records dating it to 1996-2002 and council tax band G. The latest certificate (August 2024) shows a C (score 77), near the top of the C band. The rating has held steady at C across 2 certificates since August 2014. The recommended improvements would push it to B (score 86). Other recorded features include a balcony.
At 135 m² the property is well over the postcode median (83 m² across 24 EPCs), placing it in the larger end of the local stock. 4 planning records sit against the property, 3 approved, 1 refused. Past consents include an extension and a conservatory, meaningful when judging how the property has evolved. Across 1998–2015, sale prices on this property compounded at 9.6% per year. Today's modelled estimate of £2,019,000 is 48.5% above the 2015 sale price. On a £-per-square-foot basis, the last sale (£936/sq ft) was about 153.8% above the typical sold price in the postcode. 11 years since the last transfer (April 2015).
What this property has
Inside
- Bedrooms3
- Bathrooms2
Outside
- BalconyYes
Energy performance
EPC Rating
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Planning history
12b has an approved single-storey rear extension on the planning record.
4 applications on record at 12b, Theed Street, Lambeth, London, SE1 8ST
- Jul 2015ConservatoryFullOutcome in report
Extension: Single storey · Rear of property
Erection of a ground floor single storey rear conservatory including the erection of a first floor rear extension with alterations to the existing first floor roof terrace area. Formation of a roof terrace at second floor level with the installation of balustrades around the roof terrace areas, alterations to existing window openings and doors at first and second floor levels. Installation of a front conservation rooflight and suntunnel rooflight to the side roofslope to numbers 12A and 12B Theed Street.
Extension- Documents
- 24 docs on file
- Reference
- 15/03106/FUL
- More recent applications — locked
- ConservatoryFeb 2016Decision
- ExtensionFeb 2016Decision
+ 1 more application in the report
Unlock 12b, Theed Street, Lambeth, London, SE1 8ST's full planning history
You're seeing the shape of it. The report has the substance.
- Every decision — granted, refused or withdrawn (4 on record)
- All 4 applications on this property in full, plus 2 notable nearby
- The 75 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
Price for 12b has grown more than fourfold since the 1998 starting point.
£2,019,000
Modelled from EPC, postcode comparables and a sale-price growth of 9.6% per year over 17 years.
£1,360,000
Growth on file: 9.6% per year over 17 years.
Sales timeline
9 April 2015Most recent
£1,360,000
+300.0%over 16 years6 September 1998
£340,000
+19.3%9 March 1998
£285,000
Median price across the last 5 sales in SE1 8ST: £850,000 (2025–2022).
Nearby sales in SE1 8ST
Waterside House, Flat 9, 12 Theed Street, Lambeth, London, SE1 8ST
Sold Mar 2025
£495,000Waterside House, Flat 4, 12 Theed Street, Lambeth, London, SE1 8ST
Sold Jan 2025
£850,0003 Theed Street, Lambeth, London, SE1 8ST
Sold Dec 2024
£1,750,00012d, Theed Street, Lambeth, London, SE1 8ST
Sold Jun 2024
£2,980,000Waterside House, Flat 2, 12 Theed Street, Lambeth, London, SE1 8ST
Sold Jul 2022
£550,000
Versus other Theed Street homes
12b outperforms the street on epc rating by a wide margin.
Price per m²
£10,074
Street avg £10,754
Floor Area
135 m²
Street avg 116 m²
Habitable Rooms
6 rooms
Street avg 5 rooms
CO₂ Emissions
2.8 t/year
Street avg 5.0 t/year
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The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
44/mo
Rising year-on-year across the wider district.
Nearest stop
0.1 km
Coin Street — bus stop.
Closest school
0.2 km
London Nautical, City of London Academy. 82 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
63.5dB

Night-time· 23:00 – 07:00
56.5dB







