21 Longthornton Road, Merton, London, SW16 5QE
About 21 Longthornton Road
21 Longthornton Road is a mid-terrace house in Merton, London, London (SW16 5QE). It has a recorded floor area of 129 m² (around 1389 sq ft), construction records dating it to 1930-1949 and council tax band D. The latest certificate (July 2020) shows a C (score 71). When first surveyed in March 2016 the rating was D, the property has climbed 1 band since. Between certificates, lighting went from Good to Very Good; while roof efficiency dropped from Average to Very Poor. The recommended improvements would push it to B (score 82).
At 129 m² the property is well over the postcode median (83 m² across 24 EPCs), placing it in the larger end of the local stock. Its energy rating outperforms most of the postcode (better than 71% of similar EPCs). Today's modelled estimate of £624,000 sits 53.3% above the 2017 sale of £407,000. On the market in April 2017 and unlisted since — roughly 9 years. One historical planning record sits against the property in 2019.
Everything you need to know about 21 Longthornton Road
The true value, the hidden risks and the full sale history, in one report.
Pick your report · from £14.99
One time fee only - money back guarantee

Energy performance
EPC Rating
Certificate validity
Valid until 24 July 2030
Property Improvements
Changes detected from historical EPC data
Heating controls changed
More low energy lighting installed
Get a survey for this property
Level 3 Building Survey
Because the property has solid (non-cavity) walls, we believe a Level 3 building survey should be considered.
From £1,155 · Includes VAT
Planning history
1 application on record at 21 Longthornton Road, Merton, London, SW16 5QE
- Aug 2019ExtensionOutlineOutcome in report
Extension: Rear of property
APPLICATION FOR A LAWFUL DEVELOPMENT CERTIFICATE IN RESPECT OF THE PROPOSED ERECTION OF A REAR ROOF EXTENSION WITH JULIETTE BALCONY, INSERTION OF 2X ROOFLIGHTS ON FRONT ROOFSLOPE AND ERECTION OF A SINGLE STOREY REAR EXTENSION.
- Documents
- 6 docs on file
- Reference
- 19/P2298
Unlock 21 Longthornton Road, Merton, London, SW16 5QE'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- Every decision — granted, refused or withdrawn (1 on record)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, plus 42 notable nearby
- The 6 documents, officer reports & conditions
- What the pattern means for extending or converting here
One time fee only - money back guarantee
Sales history & valuation
21 Longthornton Road valuation sits well clear of the typical sold price in this postcode.
£624,000
Modelled from EPC, postcode comparables.
£407,000
Recorded with HM Land Registry.
Sales timeline
11 April 2017Most recent
£407,000
Median price across the last 5 sales in SW16 5QE: £410,000 (2024–2019).
Nearby sales in SW16 5QE
37 Longthornton Road, Merton, London, SW16 5QE
Sold Dec 2024
£500,00051 Longthornton Road, Merton, London, SW16 5QE
Sold Sept 2023
£410,00043 Longthornton Road, Merton, London, SW16 5QE
Sold Jan 2022
£475,00033 Longthornton Road, Merton, London, SW16 5QE
Sold Jan 2020
£380,00017 Longthornton Road, Merton, London, SW16 5QE
Sold Dec 2016
£425,000
Versus other Longthornton Road homes
21 Longthornton Road outperforms the street on floor area by a wide margin.
Price per m²
£3,155
Street avg £3,525
Floor Area
129 m²
Street avg 88 m²
Habitable Rooms
6 rooms
Street avg 5 rooms
CO₂ Emissions
3.6 t/year
Street avg 3.6 t/year
Everything you need to know about 21 Longthornton Road
The true value, the hidden risks and the full sale history, in one report.
Pick your report · from £14.99
One time fee only - money back guarantee

Similar properties nearby
1 Bishops Park Road, Croydon
SW16 5TU
1 Aberfoyle Road, Lambeth
SW16 5AA
1 Donnybrook Road, Lambeth
SW16 5AT
1 Drakewood Road, Lambeth
SW16 5DT
1 Danbrook Road, Lambeth
SW16 5JY
1 Arragon Gardens, Lambeth
SW16 5LY
1 Canmore Gardens, Lambeth
SW16 5BE
1 Bridgewood Road, Lambeth
SW16 5SG
The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
524/mo
Falling year-on-year across the wider district.
Nearest stop
0.1 km
Streatham Park Cemetery — bus stop.
Closest school
0.6 km
Woodmansterne School. 52 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
49.8dB

Night-time· 23:00 – 07:00
40.4dB






