40 Cedar Crescent, Thame, OX9 2AU
About 40 Cedar Crescent
40 Cedar Crescent is a four-bedroom detached house in Thame (OX9 2AU). It has a recorded floor area of 150 m² (around 1615 sq ft), construction records dating it to 1950-1966 and council tax band E. The latest certificate (June 2024) shows a C (score 72). When first surveyed in September 2015 the rating was E, the property has climbed 2 bands since. Between certificates, wall efficiency went from Poor to Average, roof efficiency went from Average to Good and window efficiency went from Average to Good. The recommended improvements would push it to B (score 82). Other recorded features include notable views and a self-contained annexe. Records show the property has been extended at some point in its history.
Across 2015–2025, sale prices on this property compounded at 9.1% per year. Today's modelled estimate of £790,000 is 12.2% below the 2025 sale of £900,000, a rare downward gap that often correlates with deferred maintenance or unfinished works. On a £-per-square-foot basis, the last sale (£557/sq ft) was about 65.1% above the typical sold price in the postcode. At 150 m² the property is well over the postcode median (92 m² across 16 EPCs), placing it in the larger end of the local stock. Its energy rating outperforms most of the postcode (better than 88% of similar EPCs). It changed hands recently, sold August 2025 for £900,000. 3 planning records sit against the property, 0 approved, 0 refused.
Know exactly what you're buying at 40 Cedar Crescent
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
- Bedrooms4
- Bathrooms3
- Open-plan layoutYes
- Dining roomYes
- EnsuiteYes
- StudyYes
- FireplaceYes
Outside
- Notable viewsYes
Building
- Previously extendedYes
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Hot water efficiency improved
Window efficiency improved
Roof insulation improved
More low energy lighting installed
Cavity wall insulation installed
Loft insulation upgraded to recommended levels
Planning history
- Sept 2020Garage ConversionFullIn report
Amendment to previous planning application (P19/S4657/HH) - Extend garage and convert garage to living accommodation and extend canopy to main entrance to now include for altering and converting store at rear of garage including extended decking.
Extension- Documents
- 10 docs on file
- Reference
- P20/S2688/HH
- Mar 2020Garage ConversionFullIn report
Extension to front of existing garage including convert garage to living accommodation extend flat roof form canopy to main entrance.
Extension- Documents
- 9 docs on file
- Reference
- P19/S4657/HH
We flagged 1 thing worth checking at 40 Cedar Crescent
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
Latest sale on 40 Cedar Crescent was the highest on Land Registry record across the postcode.
£790,000
Modelled from EPC, postcode comparables and a sale-price growth of 9.1% per year over 10 years.
£900,000
Growth on file: 9.1% per year over 10 years.
Sales timeline
10 August 2025Most recent
£900,000
+0.6%over 3 years14 July 2022
£895,000
+132.5%over 6 years29 October 2015
£385,000
Median price across the last 5 sales in OX9 2AU: £600,000 (2025–2020).
Everything we know about 40 Cedar Crescent, 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 Cedar Crescent homes
40 Cedar Crescent is notably below the street on years held.
Price per m²
£6,000
Street avg £5,263
Floor Area
150 m²
Street avg 106 m²
Habitable Rooms
6 rooms
Street avg 5 rooms
CO₂ Emissions
4.5 t/year
Street avg 4.6 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
0.4 km
Sycamore Drive — bus stop.
Closest school
0.3 km
Lord Williams's 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
45.6dB

Night-time· 23:00 – 07:00
37.8dB