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Get started12 Mountain Ash is a one-bedroom semi-detached house in Compton, Winchester, Winchester (SO21 2DW). It has a recorded floor area of 56 m² (around 603 sq ft), construction records dating it to 2003-2006 and council tax band A. The latest certificate (August 2022) returns a B (score 82), comfortably above the UK average. The rating has held steady at B across 2 certificates since October 2010. Between certificates, window efficiency went from Average to Good and lighting went from Good to Very Good; while hot-water efficiency dropped from Very Good to Good and main heating dropped from Very Good to Good. At 56 m² this is the 6th smallest of 20 units on EPC record in the building, where floor areas span 46–132 m². The building's EPC ratings span C to B, with this unit at the top. On EPC score it ranks first in the building (82 versus a worst of 74).
Sale prices here have outpaced Winchester HPI: 1.6% per year against 0% for the wider region. On a £-per-square-foot basis, the last sale (£309/sq ft) was about 50.4% above the typical sold price in the postcode. At 56 m² it's 25.3% smaller than the typical home in the postcode (75 m² median across 19 EPCs). Its energy rating outperforms most of the postcode (better than 84% of similar EPCs). 1 bedrooms is on the smaller side for this postcode, where 3 is the typical count. Last sale on file: £186,500 in January 2023.
12 Mountain Ash's carbon output is low for the local stock.
£174,000
Modelled from EPC, postcode comparables and a sale-price growth of 1.6% per year over 16 years.
£186,500
Growth on file: 1.6% per year over 16 years.
12 Mountain Ash outperforms the street on price per m² by a wide margin.
Price per m²
£3,330
Street avg £2,258
Floor Area
56 m²
Street avg 52 m²
Habitable Rooms
2 rooms
Rail-style transport is unusually close for this postcode.
Crime
3/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Highways Road — bus stop.

Daytime· 07:00 – 23:00
55.7dB

Changes detected from historical EPC data
Hot water efficiency decreased
Window efficiency improved
More low energy lighting installed
Are we missing something? Tell us about home improvements to help adjust your valuation.
6 January 2023Most recent
£186,500
+29.5%over 16 years19 July 2006
£144,000
Median price across the last 5 sales in SO21 2DW: £188,650 (2024–2017).
15 Mountain Ash Tilden Road Compton Winchester
Sold Aug 2024
8 Mountain Ash Tilden Road Compton Winchester
Sold Mar 2022
4 Mountain Ash Tilden Road Compton Winchester
Sold Sept 2021
27 Mountain Ash Tilden Road Compton Winchester
Sold Dec 2017
13 Mountain Ash Tilden Road Compton Winchester
Sold Sept 2017
Street avg 2 rooms
CO₂ Emissions
1.0 t/year
Street avg 1.2 t/year
SO21 2DF
Closest school
1.4 km
Compton All Saints Church of England Primary School. 4 schools nearby.
Night-time· 23:00 – 07:00
47.3dB
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