9 Allison Grove, Southwark, London, SE21 7ER
About 9 Allison Grove
9 Allison Grove is a four-bedroom semi-detached house in Southwark, London, London (SE21 7ER). It has a recorded floor area of 142 m² (around 1528 sq ft), construction records dating it to 1983-1990 and council tax band F. The latest certificate (June 2025) shows a C (score 72). When first surveyed in January 2015 the rating was D, the property has climbed 1 band since. Between certificates, window efficiency went from Very Poor to Average, hot-water efficiency went from Poor to Good and lighting went from Very Poor to Good; while roof efficiency dropped from Good to Average.
On energy efficiency it sits in the top 10% of properties in this postcode. Today's modelled estimate of £1,308,000 sits 55.7% above the 2015 sale of £840,000. On a £-per-square-foot basis, the last sale (£550/sq ft) was about 32.6% above the typical sold price in the postcode. One planning record on file: an extension approved in 2015. Past consents include an extension and a garage conversion, meaningful when judging how the property has evolved. Last changed hands 11 years ago, in April 2015.
What this property has
Inside
- Bedrooms4
- Bathrooms3
- Dining roomYes
- CloakroomYes
- EnsuiteYes
Outside
- Private gardenYes
Building
- RefurbishedYes
Energy performance
9 Allison Grove ranks among the most efficient homes in the postcode for energy use.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Hot water system upgraded
Single glazing replaced with double or better glazing
Loft insulation upgraded to recommended levels
More low energy lighting installed
Get a survey for this property
Level 3 Building Survey
Because the property has been extended more than once, we believe a Level 3 building survey should be considered.
From £1,645 · Includes VAT
Planning history
1 application on record at 9 Allison Grove, Southwark, London, SE21 7ER
- Aug 2015Garage ConversionFullOutcome in report
Extension: Single storey · Rear of property
Erection of single storey rear extension, replacement roof to garage and conversion of garage to form new bedroom and utility room.
Extension- Documents
- 2 docs on file
- Reference
- 15/AP/2075
Unlock 9 Allison Grove, Southwark, London, SE21 7ER'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- Every decision — granted, refused or withdrawn (1 on record)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 1 application on this property in full
- The 2 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
9 Allison Grove valuation sits well clear of the typical sold price in this postcode.
£1,308,000
Modelled from EPC, postcode comparables.
£840,000
Recorded with HM Land Registry.
Sales timeline
21 April 2015Most recent
£840,000
Median price across the last 5 sales in SE21 7ER: £1,472,510 (2021–2019).
Nearby sales in SE21 7ER
10 Allison Grove, Southwark, London, SE21 7ER
Sold Aug 2021
£1,472,5101 Allison Grove, Southwark, London, SE21 7ER
Sold Feb 2021
£1,600,00011 Allison Grove, Southwark, London, SE21 7ER
Sold Sept 2020
£1,050,5006 Allison Grove, Southwark, London, SE21 7ER
Sold Oct 2019
£1,350,0001a, Allison Grove, Southwark, London, SE21 7ER
Sold Sept 2019
£1,800,000
Versus other Allison Grove homes
9 Allison Grove outperforms the street on co₂ emissions by a wide margin.
Price per m²
£5,915
Street avg £6,467
Floor Area
142 m²
Street avg 166 m²
Habitable Rooms
5 rooms
Street avg 7 rooms
CO₂ Emissions
3.6 t/year
Street avg 7.3 t/year
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The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
6/mo
Rising year-on-year across the wider district.
Nearest stop
0.1 km
Dulwich College — bus stop.
Closest school
0.9 km
Dulwich Hamlet Junior School. 63 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
51.0dB

Night-time· 23:00 – 07:00
42.9dB







