12 Dumbleton Road is a three-bedroom semi-detached house in Killamarsh, Sheffield, Sheffield (S21 1AX). It has a recorded floor area of 105 m² (around 1130 sq ft), construction records dating it to 1930-1949 and council tax band A. The latest certificate (March 2014) shows a C (score 74). When first surveyed in April 2010 the rating was D, the property has climbed 1 band since. Between certificates, hot-water efficiency went from Poor to Good, lighting went from Very Poor to Good and main heating went from Average to Good; while window efficiency dropped from Good to Average. The recommended improvements would push it to B (score 85). The latest certificate is from March 2014, so improvements made since then won't be reflected. Other recorded features include notable views. Records show the property has been extended at some point in its history. The home occupies a cul-de-sac position.
Sale prices here have outpaced Sheffield HPI: 15.8% per year against 0% for the wider region. Today's modelled estimate of £247,000 sits 72.7% above the 2014 sale of £143,000. At 105 m² the property is well over the postcode median (63 m² across 17 EPCs), placing it in the larger end of the local stock. Its energy rating outperforms most of the postcode (better than 88% of similar EPCs). One planning record on file: an extension approved in 2004. Past consents include an extension, meaningful when judging how the property has evolved. Last changed hands 12 years ago, in July 2014.
12 Dumbleton Road's EPC is over a decade old — improvements since won't be reflected.
This certificate is over 10 years old and is no longer valid.Expired 07 Mar 2024
Council records include a two-storey side and rear extension at 12 Dumbleton Road.
Extension: Two storey · Side and rear of property
Construction of a two storey extension to the side and rear including an integral garage
Price for 12 Dumbleton Road has grown more than fourfold since the 2002 starting point.
£247,000
Modelled from EPC, postcode comparables and a sale-price growth of 15.8% per year over 12 years.
£143,000
Growth on file: 15.8% per year over 12 years.
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EPC Rating for 12 Dumbleton Road runs comfortably ahead of the street norm.
Price per m²
£1,362
Street avg £2,182
Floor Area
105 m²
Street avg 70 m²
Habitable Rooms
5 rooms
Daytime road noise here sits well below conversation level — a quiet pocket of the postcode.
Crime
3/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km

Daytime· 07:00 – 23:00
45.5dB

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Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Hot water system upgraded
More low energy lighting installed
Full planning data for 12 Dumbleton Road, Killamarsh, Sheffield, S21 1AX
Every application and decision on this property and nearby, in full, in the report.
28 July 2014Most recent
£143,000
+3.6%over 3 years10 September 2010
£138,000
+499.0%over 8 years11 February 2002
£23,040
Median price across the last 5 sales in S21 1AX: £130,000 (2025–2016).
Detailed EPC data
Full energy ratings, history and recommendations
Full planning history
Every application and decision on record
Comparable sales data
Plus transport, crime, schools and air quality
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Street avg 4 rooms
CO₂ Emissions
2.9 t/year
Street avg 3.6 t/year
S21 1GG
Manor Road — bus stop.
Closest school
1.0 km
St Giles CofE Primary School. 6 schools nearby.
Night-time· 23:00 – 07:00
36.5dB