12a, Nelson Street, Thame, OX9 2DP
About 12a
12a is a four-bedroom semi-detached house in Thame (OX9 2DP). It has a recorded floor area of 172 m² (around 1851 sq ft), construction records dating it to 1900-1929 and council tax band E. The latest certificate (May 2020) shows a D (score 66), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since August 2009. Between certificates, lighting went from Very Poor to Good; while wall efficiency dropped from Good to Poor and roof efficiency dropped from Good to Average. The recommended improvements would lift it to B (score 82), a 2-band jump. Period features are noted in the property record.
At 172 m² the property is well over the postcode median (110 m² across 23 EPCs), placing it in the larger end of the local stock. Across 2003–2020, sale prices on this property compounded at 7.2% per year. Today's modelled estimate of £866,000 is 11.7% above the 2020 sale price. On a £-per-square-foot basis, the last sale (£419/sq ft) was about 31.3% above the typical sold price in the postcode. 2 planning records sit against the property, 0 approved, 0 refused. Last sale on file: £775,000 in August 2020.
Know exactly what you're buying at 12a
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
- Bathrooms2
- Open-plan layoutYes
- Dining roomYes
- EnsuiteYes
- FireplaceYes
Outside
- Private gardenWest-facing
Building
- Period featuresYes
- RefurbishedYes
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Hot water system changed
More low energy lighting installed
Planning history
Multiple extension applications run across more than a decade of planning history at 12a.
- Nov 2015ExtensionFullIn report
Extension: Single storey · Rear of property
First floor extension at rear and new rear window in existing bedroom and new access door in existing wall to new utility.
- Documents
- 7 docs on file
- Reference
- P15/S3331/HH
- Nov 2004ExtensionIn report
Extension: Single storey · Rear of property
Erection of a single storey rear extension.
- Documents
- 9 docs on file
- Reference
- P04/E1249
We flagged 1 thing worth checking at 12a
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
12a has more than tripled in price since its earliest registered sale in 2003.
£866,000
Modelled from EPC, postcode comparables and a sale-price growth of 7.2% per year over 17 years.
£775,000
Growth on file: 7.2% per year over 17 years.
Sales timeline
27 August 2020Most recent
£775,000
+75.7%over 10 years10 February 2010
£441,000
+87.7%over 6 years3 July 2003
£235,000
Median price across the last 5 sales in OX9 2DP: £565,000 (2025–2023).
Nearby sales in OX9 2DP
Everything we know about 12a, 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 Nelson Street homes
12a outperforms the street on floor area by a wide margin.
Price per m²
£4,506
Street avg £4,930
Floor Area
172 m²
Street avg 107 m²
Habitable Rooms
7 rooms
Street avg 5 rooms
CO₂ Emissions
5.2 t/year
Street avg 5.8 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
Upper High Street — bus stop.
Closest school
0.4 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
48.2dB
Night-time· 23:00 – 07:00
38.4dB