21 Old Union Way, Thame, OX9 2DF
About 21 Old Union Way
21 Old Union Way is a three-bedroom mid-terrace house in Thame (OX9 2DF). It has a recorded floor area of 116 m² (around 1249 sq ft), construction records dating it to 2007-2011 and council tax band E. The latest certificate (August 2022) shows a C (score 80), near the top of the C band. Earlier certificates rated it B (April 2011); the latest reading is one band lower. Between certificates, roof efficiency went from Good to Very Good; while hot-water efficiency dropped from Very Good to Average and main heating dropped from Very Good to Good. The recommended improvements would push it to B (score 90). Other recorded features include a balcony.
At 116 m² the property is well over the postcode median (74 m² across 27 EPCs), placing it in the larger end of the local stock. Across 2007–2023, sale prices on this property compounded at 1.8% per year. On a £-per-square-foot basis, the last sale (£461/sq ft) was about 32.7% above the typical sold price in the postcode. Sold January 2023 for £575,000.
Know exactly what you're buying at 21 Old Union Way
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
- Bedrooms3
- Bathrooms3
- Open-plan layoutYes
- Dining roomYes
- CloakroomYes
- EnsuiteYes
- StudyYes
Outside
- GarageYes
- BalconyYes
Building
- Central heatingYes
- RefurbishedYes
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Hot water system changed
Roof insulation improved
Planning history
21 Old Union Way has no planning applications on record.
Notable planning nearby
2applications of note in the surrounding area
We flagged 1 thing worth checking at 21 Old Union Way
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
21 Old Union Way valuation sits well clear of the typical sold price in this postcode.
£546,000
Modelled from EPC, postcode comparables and a sale-price growth of 1.8% per year over 15 years.
£575,000
Growth on file: 1.8% per year over 15 years.
Sales timeline
24 January 2023Most recent
£575,000
+33.7%over 7 years3 September 2015
£430,000
-1.7%over 7 years21 October 2007
£437,500
Median price across the last 5 sales in OX9 2DF: £264,775 (2025–2021).
Nearby sales in OX9 2DF
Everything we know about 21 Old Union Way, 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 Old Union Way homes
21 Old Union Way outperforms the street on price per m² by a wide margin.
Price per m²
£4,957
Street avg £4,098
Floor Area
116 m²
Street avg 125 m²
Habitable Rooms
4 rooms
Street avg 4 rooms
CO₂ Emissions
2.3 t/year
Street avg 3.0 t/year
Similar properties nearby
The neighbourhood at a glance
Crime
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Cuttle Brook — bus stop.
Closest school
0.3 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
52.4dB
Night-time· 23:00 – 07:00
44.2dB