20 Blackthorn Grange, Thame, OX9 3GG
About 20 Blackthorn Grange
20 Blackthorn Grange is a five-bedroom detached house in Thame (OX9 3GG). It has a recorded floor area of 293 m² (around 3154 sq ft). The latest certificate (July 2018) returns a high B (score 87), putting the home a stone's throw from an A rating. The property has solar panels on record, all of which lower running costs and tend to lift resale appeal. Other recorded features include a balcony and notable views. Period features are noted in the property record.
At 293 m² the property is well over the postcode median (177 m² across 19 EPCs), placing it in the larger end of the local stock. A recent sale: £1,250,000 in January 2025. Across 2018–2025, sale prices on this property compounded at 3.9% per year.
Know exactly what you're buying at 20 Blackthorn Grange
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
- Bedrooms5
- Bathrooms3
- Open-plan layoutYes
- Dining roomYes
- EnsuiteYes
- StudyYes
- FireplaceYes
Outside
- Private gardenYes
- GarageYes
- BalconyYes
- Summer houseYes
- Notable viewsYes
Building
- Solar panelsYes
- Period featuresYes
Energy performance
Achieving this rating across a home of this size is uncommon — larger homes typically score lower.
EPC Rating
Planning history
20 Blackthorn Grange has no planning applications on record.
Notable planning nearby
2applications of note in the surrounding area
We flagged 1 thing worth checking at 20 Blackthorn Grange
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
20 Blackthorn Grange valuation sits well clear of the typical sold price in this postcode.
£1,168,000
Modelled from EPC, postcode comparables and a sale-price growth of 3.9% per year over 6 years.
£1,250,000
Growth on file: 3.9% per year over 6 years.
Sales timeline
27 January 2025Most recent
£1,250,000
+28.2%over 6 years29 July 2018
£975,000
Median price across the last 5 sales in OX9 3GG: £530,000 (2025–2019).
Nearby sales in OX9 3GG
Everything we know about 20 Blackthorn Grange, 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 Blackthorn Grange homes
20 Blackthorn Grange outperforms the street on floor area by a wide margin.
Price per m²
£4,266
Street avg £4,404
Floor Area
293 m²
Street avg 173 m²
CO₂ Emissions
3.0 t/year
Street avg 1.9 t/year
Years Held
1 years
Street avg 7 years
Similar properties nearby
1 Chinnor Road
OX9 3LN
1 Berkeley Road
OX9 3TQ
1 Cavendish Walk
OX9 3YR
1 Blackmore Close
OX9 3ZH
1 Charles Drive
OX9 3XU
1 Cavalier Road
OX9 3TW
1 Bloomfields, Chinnor Road, Towersey
OX9 3QZ
1 Augustine Way
OX9 3EA
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
0.2 km
Esingdon Drive — bus stop.
Closest school
0.7 km
John Hampden 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
48.8dB

Night-time· 23:00 – 07:00
40.2dB