11a is a two-bedroom property in Killamarsh, Sheffield, Sheffield (S21 1AH). It has a recorded floor area of 49 m² (around 527 sq ft), construction records dating it to 1900-1929 and council tax band A. The latest certificate (November 2025) shows an E (score 40), well below the UK norm with real room to improve. The recommended improvements would lift it to C (score 75), a 2-band jump. Main heating runs on electricity. This certificate was lodged in the last six months, so the rating reflects current condition.
It hasn't traded since August 2007, a hold of 19 years that's notably long for the area. That sale landed at the peak of the pre-credit-crunch market, which is a useful reference point when interpreting the price. Across 2006–2007, sale prices here grew 0% per year, broadly in step with Sheffield's 0% HPI growth. Today's modelled estimate of £128,000 is 11.3% above the 2007 sale price. On a £-per-square-foot basis, the last sale (£218/sq ft) was about 58.5% above the typical sold price in the postcode. At 49 m² it's 15.5% smaller than the typical home in the postcode (58 m² median across 40 EPCs).
11a's carbon output is low for the local stock.
No planning applications are recorded against 11a, Flat, Bridge Street, Killamarsh, Sheffield, S21 1AH. The full report also covers planning activity across the surrounding area.
Full planning data for 11a, Flat, Bridge Street, Killamarsh, Sheffield, S21 1AH
Every application and decision on this property and nearby, in full, in the report.
11a changed hands twice within eighteen months — unusual for the area.
£128,000
Modelled from EPC, postcode comparables.
£115,000
Recorded with HM Land Registry.
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11a is notably below the street on epc rating.
Price per m²
£2,347
Street avg £2,054
Floor Area
49 m²
Street avg 58 m²
Habitable Rooms
2 rooms
Street avg 3 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
0.0 km

Daytime· 07:00 – 23:00
47.8dB

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28 August 2007Most recent
£115,000
4 August 2006
£115,000
Median price across the last 5 sales in S21 1AH: £150,000 (2025–2022).
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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CO₂ Emissions
1.1 t/year
Street avg 3.2 t/year
S21 1AR
Bridge Street setting down — bus stop.
Closest school
0.5 km
St Giles CofE Primary School. 15 schools nearby.
Night-time· 23:00 – 07:00
38.3dB