11a 11b, Catherine Hill, Frome, BA11 1BZ
About 11a 11b
11a 11b is a detached house in Frome (BA11 1BZ). It has a recorded floor area of 31 m² (around 334 sq ft) and construction records dating it to before 1900. The latest certificate (November 2020) shows an E (score 41), well below the UK norm with real room to improve. The rating has held steady at E across 4 certificates since November 2008. Between certificates, roof efficiency went from Poor to Good and lighting went from Average to Very Good; while wall efficiency dropped from Good to Poor. The recommended improvements would lift it to C (score 71), a 2-band jump. Main heating runs on to be used only when there is no heating/hot.
At 31 m² it sits well below the postcode median (57 m² across 19 EPCs), making it one of the more compact homes locally. Sold May 2022 for £280,000. Across the public record there are 4 sales, relatively high churn for a single property. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend. Across 1998–2022, sale prices on this property compounded at 11.6% per year. On a £-per-square-foot basis, the last sale (£839/sq ft) was about 276.9% above the typical sold price in the postcode.
Know exactly what you're buying at 11a 11b
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Already flagged here
Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Low energy lighting percentage decreased
More low energy lighting installed
Wall insulation improved
More low energy lighting installed
Planning history
11a 11b has no planning applications on record.
Notable planning nearby
4applications of note in the surrounding area
We flagged 1 thing worth checking at 11a 11b
Independent checks surfaced things a buyer would want to understand before offering. The report explains each one in full, with the underlying data and what to ask.
- Larger development activity nearby
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Sales history & valuation
11a 11b has more than quadrupled in price since its earliest registered sale in 1998.
£281,000
Modelled from EPC, postcode comparables and a sale-price growth of 11.6% per year over 24 years.
£280,000
Growth on file: 11.6% per year over 24 years.
Sales timeline
5 May 2022Most recent
£280,000
+60.0%over 16 years25 November 2005
£175,000
+201.7%over 2 years17 March 2003
£58,000
+176.2%over 4 years26 October 1998
£21,000
Median price across the last 5 sales in BA11 1BZ: £249,950 (2025–2019).
Nearby sales in BA11 1BZ
Everything we know about 11a 11b, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
What we flagged
- Larger development activity nearby

Versus other Catherine Hill homes
Price per m² for 11a 11b runs comfortably ahead of the street norm.
Price per m²
£9,032
Street avg £3,076
Floor Area
31 m²
Street avg 56 m²
Habitable Rooms
2 rooms
Street avg 2 rooms
CO₂ Emissions
2.9 t/year
Street avg 3.4 t/year
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The neighbourhood at a glance
Crime
3/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Market Place — bus stop.
Closest school
0.3 km
Vallis First School. 10 schools nearby.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.