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Get started21 Denison Road is a three-bedroom mid-terrace house in Merton, London, London (SW19 2DJ). It has a recorded floor area of 91 m² (around 980 sq ft), construction records dating it to before 1900 and council tax band D. The latest certificate (March 2020) shows an E (score 50), well below the UK norm with real room to improve. Earlier certificates rated it D (October 2013); the latest reading is one band lower. Between certificates, lighting went from Good to Very Good; while roof efficiency dropped from Good to Very Poor. The recommended improvements would lift it to B (score 81), a 3-band jump. Records show the property has been extended at some point in its history.
Sale prices here have outpaced London HPI: 9.4% per year against 0% for the wider region. Today's modelled estimate of £768,000 is 12.1% above the 2020 sale price. On a £-per-square-foot basis, the last sale (£699/sq ft) was about 109.3% above the typical sold price in the postcode. At 91 m² it's 26.2% larger than the typical home in the postcode (72 m² median across 39 EPCs). On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Last sale on file: £685,000 in October 2020. Across the public record there are 5 sales, relatively high churn for a single property. One planning record on file: an extension approved in 2025. Past consents include an extension, meaningful when judging how the property has evolved.
21 Denison Road sits at the bottom of the postcode for energy efficiency — meaningful headroom to improve.
21 Denison Road has an approved single-storey rear extension on the planning record.
Extension: Single storey · Rear of property
APPLICATION FOR A SINGLE STOREY REAR EXTENSION & GLAZING ALTERATIONS TO FENESTRATION ON REAR DORMER
21 Denison Road has more than quadrupled in price since its earliest registered sale in 1997.
£768,000
Modelled from EPC, postcode comparables and a sale-price growth of 9.4% per year over 24 years.
£685,000
Growth on file: 9.4% per year over 24 years.
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On co₂ emissions, 21 Denison Road runs well behind the street norm.
Price per m²
£7,527
Street avg £6,468
Floor Area
91 m²
Street avg 79 m²
Habitable Rooms
5 rooms
Rail-style transport is unusually close for this postcode.
Crime
6/mo
Rising year-on-year across the wider district.
Nearest stop
0.2 km
Walpole Road — bus stop.

Daytime· 07:00 – 23:00
53.3dB

Changes detected from historical EPC data
Heating controls upgraded for better temperature management
More low energy lighting installed
Are we missing something? Tell us about home improvements to help adjust your valuation.
21 October 2020Most recent
£685,000
+24.5%over 3 years4 October 2017
£550,000
+18.3%over 3 years22 August 2014
£465,000
+201.0%over 13 years27 October 2000
£154,500
+88.4%over 3 years20 February 1997
£82,000
Median price across the last 5 sales in SW19 2DJ: £650,000 (2024–2022).
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Street avg 4 rooms
CO₂ Emissions
5.9 t/year
Street avg 3.3 t/year
SW19 2NB
Closest school
0.4 km
Singlegate Primary School. 52 schools nearby.
Night-time· 23:00 – 07:00
42.6dB