Stonewalls, School Lane, Warmington, Banbury, OX17 1DD
About Stonewalls
Stonewalls is a detached house in Warmington, Banbury, Banbury (OX17 1DD). It has a recorded floor area of 132 m² (around 1421 sq ft), construction records dating it to 1967-1975 and council tax band E. The latest certificate (September 2025) shows a D (score 60), on the cusp of jumping into the C band. When first surveyed in September 2022 the rating was E, the property has climbed 1 band since. Between certificates, wall efficiency went from Poor to Good; while roof efficiency dropped from Good to Average and window efficiency dropped from Average to Poor. The recommended improvements would push it to C (score 70). Main heating runs on oil.
At 132 m² it sits well below the postcode median (230 m² across 5 EPCs), making it one of the more compact homes locally. On energy efficiency it sits in the top 10% of properties in this postcode. Last sale on file: £490,000 in March 2024. Across the public record there are 4 sales, relatively high churn for a single property. Across 1999–2024, sale prices on this property compounded at 5.4% per year. On a £-per-square-foot basis, the last sale (£345/sq ft) was about 75% above the typical sold price in the postcode.
Energy performance
Stonewalls ranks among the most efficient homes in the postcode for energy use.
EPC Rating
Certificate validity
Valid until 7 September 2035
Property Improvements
Changes detected from historical EPC data
Cavity wall insulation installed
More low energy lighting installed
Get a survey for this property
Level 3 Building Survey
Because the property has been extended more than once and has no mains gas supply, we believe a Level 3 building survey should be considered.
From £1,085 · Includes VAT
Planning history
Stonewalls has no planning applications on record.
But the area is active
7 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
Sale price has grown by over 3x since 1999.
£504,000
Modelled from EPC, postcode comparables and a sale-price growth of 5.4% per year over 25 years.
£490,000
Growth on file: 5.4% per year over 25 years.
Sales timeline
7 March 2024Most recent
£490,000
+96.4%over 21 years8 August 2002
£249,500
+32.4%over 2 years27 April 2000
£188,500
+38.6%over 8 months19 August 1999
£136,000
Median price across the last 5 sales in OX17 1DD: £525,000 (2021–2003).
Nearby sales in OX17 1DD
Springfield Barn, School Lane, Warmington, Banbury, OX17 1DD
Sold Jun 2021
£565,000Poynters, School Lane, Warmington, Banbury, OX17 1DD
Sold Mar 2011
£230,000Keys Cottage, School Lane, Warmington, Banbury, OX17 1DD
Sold Feb 2010
£660,000The Dene, School Lane, Warmington, Banbury, OX17 1DD
Sold Jan 2007
£525,000The Covert, School Lane, Warmington, Banbury, OX17 1DD
Sold Sept 2003
£460,000
Versus other School Lane homes
Stonewalls outperforms the street on price per m² by a wide margin.
Price per m²
£3,712
Street avg £2,186
Floor Area
132 m²
Street avg 251 m²
Habitable Rooms
7 rooms
Street avg 8 rooms
CO₂ Emissions
6.0 t/year
Street avg 15.2 t/year
Similar properties nearby
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The neighbourhood at a glance
Crime
50/mo
Falling year-on-year across the wider district.
Nearest stop
0.1 km
School Lane — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.
Road noise across the postcode

Daytime· 07:00 – 23:00
51.3dB

Night-time· 23:00 – 07:00
44.7dB







