99 St Helens Avenue, Benson, Wallingford, OX10 6RU
About 99 St Helens Avenue
99 St Helens Avenue is a three-bedroom detached house in Benson, Wallingford, Wallingford (OX10 6RU). It has a recorded floor area of 78 m² (around 838 sq ft), construction records dating it to 1967-1975 and council tax band E. The latest certificate (January 2012) shows an F (score 37), near the bottom of the EPC scale. The recommended improvements would push it to E (score 50). Main heating runs on electricity. The latest certificate is from January 2012, so improvements made since then won't be reflected.
At 78 m² it sits well below the postcode median (124 m² across 23 EPCs), making it one of the more compact homes locally. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Today's modelled estimate of £543,000 is 44.4% above the 2012 sale price. On a £-per-square-foot basis, the last sale (£449/sq ft) was about 32.7% above the typical sold price in the postcode. On the market in May 2012 and unlisted since — roughly 14 years. One historical planning record sits against the property in 2013.
Know exactly what you're buying at 99 St Helens Avenue
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
- Bedrooms3
- Bathrooms2
Energy performance
99 St Helens Avenue sits at the bottom of the postcode for energy efficiency — meaningful headroom to improve.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 19 Jan 2022
EPC Rating
Planning history
- Jan 2013Garage ConversionFullIn report
Extension: Rear of property
The removal of an existing conservatory replacement with single storey rear extension, the conversion of the garage, the addition of a porch, the increase in size of an existing flat roof dormer and minor alterations to fenestration and wall finishes
ExtensionPorch- Documents
- 6 docs on file
- Reference
- P12/S2718/HH
We flagged 1 thing worth checking at 99 St Helens Avenue
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
£543,000
Modelled from EPC, postcode comparables.
£376,000
Recorded with HM Land Registry.
Sales timeline
30 May 2012Most recent
£376,000
Median price across the last 5 sales in OX10 6RU: £580,000 (2025–2022).
Nearby sales in OX10 6RU
59 St Helens Avenue, Benson, Wallingford, OX10 6RU
Sold Jul 2025
£805,000105 St Helens Avenue, Benson, Wallingford, OX10 6RU
Sold Aug 2024
£530,00055 St Helens Avenue, Benson, Wallingford, OX10 6RU
Sold May 2023
£580,00049 St Helens Avenue, Benson, Wallingford, OX10 6RU
Sold Oct 2022
£545,000101 St Helens Avenue, Benson, Wallingford, OX10 6RU
Sold May 2022
£670,000
Everything we know about 99 St Helens Avenue, 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 St Helens Avenue homes
99 St Helens Avenue is notably below the street on epc rating.
Price per m²
£4,829
Street avg £4,180
Floor Area
78 m²
Street avg 136 m²
Habitable Rooms
4 rooms
Street avg 7 rooms
CO₂ Emissions
13.0 t/year
Street avg 5.6 t/year
Similar properties nearby
1 Buckners Close, Benson
OX10 6LR
1 Ash Cottages, Little Stoke
OX10 6AY
1 Chaucer Court, Ewelme
OX10 6HW
1 Birmingham Yard, Benson
OX10 6SE
1 Chiltern Close, Benson
OX10 6LG
1 Bonners Mead, Benson
OX10 6EU
1 Baker Avenue, Benson
OX10 6EQ
1 Britwell Road, Ewelme
OX10 6JA
The neighbourhood at a glance
Crime
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
St Helens Crescent — bus stop.
Closest school
0.5 km
Benson Church of England Primary School. 9 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
51.7dB

Night-time· 23:00 – 07:00
43.6dB