8 Plas Mair, William Street, Aberystwyth, SY23 1EB
About 8 Plas Mair
8 Plas Mair is a semi-detached house in Aberystwyth (SY23 1EB). It has a recorded floor area of 60 m² (around 646 sq ft), construction records dating it to 1991-1995 and council tax band D. The latest certificate (August 2020) shows a C (score 74). The rating has held steady at C across 2 certificates since November 2008. Between certificates, main heating went from Poor to Average. Main heating runs on electricity. At 60 m² this is the 4th smallest of 9 units on EPC record in the building, where floor areas span 55–88 m². The building's EPC ratings span D to B across 9 units on file.
Across 1995–2021, sale prices on this property compounded at 3% per year. Today's modelled estimate of £164,000 is 36.7% above the 2021 sale price. On a £-per-square-foot basis, the last sale (£186/sq ft) was about 100% above the typical sold price in the postcode. Last sale on file: £120,000 in September 2021. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Know exactly what you're buying at 8 Plas Mair
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
Energy performance
EPC Rating
Planning history
8 Plas Mair has no planning applications on record.
Notable planning nearby
3applications of note in the surrounding area
Sales history & valuation
Sale price has at least doubled since 1995.
£164,000
Modelled from EPC, postcode comparables and a sale-price growth of 3.0% per year over 26 years.
£120,000
Growth on file: 3.0% per year over 26 years.
Sales timeline
14 September 2021Most recent
£120,000
-14.3%over 12 years8 April 2009
£140,000
+154.5%over 13 years18 July 1995
£55,000
Median price across the last 5 sales in SY23 1EB: £132,000 (2022–2001).
Nearby sales in SY23 1EB
3 Plas Mair, William Street, Aberystwyth, SY23 1EB
Sold Feb 2022
£142,0002 Plas Mair, William Street, Aberystwyth, SY23 1EB
Sold Sept 2013
£177,5001 Plas Mair, William Street, Aberystwyth, SY23 1EB
Sold Sept 2002
£119,9506 Plas Mair, William Street, Aberystwyth, SY23 1EB
Sold Feb 2001
£58,5007 Plas Mair, William Street, Aberystwyth, SY23 1EB
Sold Sept 2000
£60,000
Everything we know about 8 Plas Mair, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
- Am I paying too much?
- Is something wrong with it?
- Is the agent's story true?
- Will it hold its value?

Versus other William Street homes
On price per m², 8 Plas Mair stands well clear of the street.
Price per m²
£2,000
Street avg £1,385
Floor Area
60 m²
Street avg 58 m²
Habitable Rooms
3 rooms
Street avg 3 rooms
CO₂ Emissions
3.3 t/year
Street avg 3.1 t/year
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The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
4/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Mill Street — bus stop.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.