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Get startedBy Water is a detached house in Ewelme, Wallingford, Wallingford (OX10 6HQ). It has a recorded floor area of 163 m² (around 1755 sq ft) and construction records dating it to 1967-1975. The latest certificate (November 2020) shows an E (score 54), well below the UK norm with real room to improve. When first surveyed in April 2018 the rating was F, the property has climbed 1 band since. Between certificates, roof efficiency went from Very Poor to Good, hot-water efficiency went from Very Poor to Average and lighting went from Good to Very Good; while window efficiency dropped from Good to Average. The recommended improvements would lift it to C (score 73), a 2-band jump. Main heating runs on oil.
At 163 m² the property is well over the postcode median (104 m² across 27 EPCs), placing it in the larger end of the local stock. One historical planning record sits against the property in 2024.
By Water's carbon output runs well above what efficient homes in the postcode produce.
Proposed external rendering of the property and addition of open oak framed front porch, with pitched roof.
By Water has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£807,000
Modelled from EPC, postcode comparables.
That can mean the property has never traded since the registry began publishing in 1995, was a new build that hasn't been registered yet, or is held in the same hands long-term.
Habitable Rooms for By Water runs comfortably ahead of the street norm.
EPC Rating
54 (E)
Street avg 54 (E)
Floor Area
163 m²
Street avg 123 m²
CO₂ Emissions
8.3 t/year
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
0.3 km

Daytime· 07:00 – 23:00
44.5dB

Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Hot water system upgraded
Windows upgraded, improving insulation
Loft insulation installed or upgraded to 250mm+
More low energy lighting installed
Are we missing something? Tell us about home improvements to help adjust your valuation.
Median price across the last 5 sales in OX10 6HQ: £695,900 (2025–2024).
Street avg 6.8 t/year
Habitable Rooms
8 rooms
Street avg 5 rooms
Village Store — bus stop.
Closest school
0.4 km
Ewelme CofE Primary School. 3 schools nearby.
Night-time· 23:00 – 07:00
36.6dB