Charter House, Flat 3, 14 Wellington Street, Thame, OX9 3BN
About Charter House
Charter House is a one-bedroom semi-detached house in Thame (OX9 3BN). It has a recorded floor area of 44 m² (around 474 sq ft). At 44 m² this is the smallest unit on EPC record across Charter House (44–87 m²). The building's EPC ratings span C to B, with this unit at the top. The latest certificate (April 2016) returns a B (score 82), comfortably above the UK average. The latest certificate is from April 2016, so improvements made since then won't be reflected.
At 44 m² it sits well below the postcode median (76 m² across 26 EPCs), making it one of the more compact homes locally. Its energy rating outperforms most of the postcode (better than 77% of similar EPCs). Across 2016–2022, sale prices on this property compounded at -0.9% per year. On a £-per-square-foot basis, the last sale (£480/sq ft) was about 33.5% above the typical sold price in the postcode. Sold March 2022 for £227,500. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Know exactly what you're buying at Charter House
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
What this property has
Inside
- Bedrooms1
- Bathrooms1
- Open-plan layoutYes
- Dining roomYes
Outside
- Communal gardenYes
- ParkingAllocated
Energy performance
Charter House's carbon output is low for the local stock.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 14 Apr 2026
EPC Rating
Planning history
Charter House has no planning applications on record.
Notable planning nearby
2applications of note in the surrounding area
We flagged 1 thing worth checking at Charter House
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
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£232,000
Modelled from EPC, postcode comparables and a sale-price growth of -0.9% per year over 6 years.
£227,500
Growth on file: -0.9% per year over 6 years.
Sales timeline
30 March 2022Most recent
£227,500
-5.2%over 5 years9 June 2016
£240,000
Median price across the last 5 sales in OX9 3BN: £440,000 (2025–2021).
Nearby sales in OX9 3BN
Charter House, Flat 2, 14 Wellington Street, Thame, OX9 3BN
Sold Nov 2025
£272,500114 Wellington Street, Thame, OX9 3BN
Sold Dec 2023
£31,500106 Wellington Street, Thame, OX9 3BN
Sold Oct 2023
£463,00094 Wellington Street, Thame, OX9 3BN
Sold Aug 2022
£625,000104 Wellington Street, Thame, OX9 3BN
Sold Nov 2021
£440,000
Everything we know about Charter House, 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 Wellington Street homes
Price per m² for Charter House runs comfortably ahead of the street norm.
Price per m²
£5,170
Street avg £3,113
Floor Area
44 m²
Street avg 73 m²
CO₂ Emissions
0.8 t/year
Street avg 1.5 t/year
Years Held
4 years
Street avg 9 years
Similar properties nearby
Flat 2, 27 Upper High Street
OX9 3EX
Charter House, Flat 4, 14 Wellington Street
OX9 3BN
Charter House, Flat 2, 14 Wellington Street
OX9 3BN
Charter House, Flat 1, 14 Wellington Street
OX9 3BN
Flat, 104 High Street
OX9 3DZ
Flat 2, 42 Park Street
OX9 3HR
Flat, 12 Buttermarket
OX9 3EW
Flat 1, 42 Park Street
OX9 3HR
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
Thame Area Pick Up Zone — bus stop.
Closest school
0.3 km
Barley Hill Primary School. 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
49.9dB

Night-time· 23:00 – 07:00
39.4dB