23b, High Street, Thame, OX9 2BZ
About 23b
23b is a semi-detached house in Thame (OX9 2BZ). It has a recorded floor area of 141 m² (around 1518 sq ft), construction records dating it to before 1900 and council tax band E. The latest certificate (May 2025) shows an E (score 49), well below the UK norm with real room to improve. The rating has held steady at E across 3 certificates since February 2013. Between certificates, window efficiency went from Very Poor to Average and lighting went from Very Poor to Very Good. The recommended improvements would lift it to C (score 77), a 2-band jump.
It hasn't traded since September 1999, a hold of 27 years that's notably long for the area. Only one transfer is on record with HM Land Registry, suggesting it has stayed in the same hands for a long time. At 141 m² the property is well over the postcode median (107 m² across 13 EPCs), placing it in the larger end of the local stock. Today's modelled estimate of £590,000 sits 461.9% above the 1999 sale of £105,000. On a £-per-square-foot basis, the last sale (£69/sq ft) was about 79.5% below the postcode norm.
Know exactly what you're buying at 23b
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
23b's carbon output runs well above what efficient homes in the postcode produce.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Single glazing replaced with double or better glazing
Loft insulation installed or upgraded to 250mm+
Windows upgraded, improving insulation
More low energy lighting installed
Planning history
23b has no planning applications on record.
Notable planning nearby
2applications of note in the surrounding area
We flagged 1 thing worth checking at 23b
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
30-day money-back guarantee
Sales history & valuation
23b's modelled value sits at over four times its earliest registered sale price (1999).
£590,000
Modelled from EPC, postcode comparables.
£105,000
Recorded with HM Land Registry.
Sales timeline
8 September 1999Most recent
£105,000
Median price across the last 5 sales in OX9 2BZ: £455,000 (2024–2021).
Everything we know about 23b, 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 High Street homes
23b is notably below the street on price per m².
Price per m²
£745
Street avg £3,516
Floor Area
141 m²
Street avg 196 m²
Habitable Rooms
5 rooms
Street avg 7 rooms
CO₂ Emissions
8.5 t/year
Street avg 9.5 t/year
Similar properties nearby
The neighbourhood at a glance
Daytime road noise here sits well below conversation level — a quiet pocket of the postcode.
Crime
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Town Hall — bus stop.
Closest school
0.2 km
St Joseph's Catholic Primary School, Thame. 4 schools nearby.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.
Road noise across the postcode
Daytime· 07:00 – 23:00
49.3dB
Night-time· 23:00 – 07:00
39.9dB