20b, Cave Street, Oxford, OX4 1BA
About 20b
20b is an end-of-terrace house in Oxford (OX4 1BA). It has a recorded floor area of 53 m² (around 570 sq ft), construction records dating it to 1996-2002 and council tax band D. The latest certificate (November 2019) shows a C (score 73). When first surveyed in April 2009 the rating was D, the property has climbed 1 band since. Between certificates, hot-water efficiency went from Good to Very Good and lighting went from Good to Very Good. The recommended improvements would push it to B (score 88).
One planning record on file: an extension approved in 2021. Past consents include an extension, a loft conversion and a conservatory, meaningful when judging how the property has evolved. On a £-per-square-foot basis, the last sale (£736/sq ft) was about 55.3% above the typical sold price in the postcode. On the market in April 2017 and unlisted since — roughly 9 years.
Know exactly what you're buying at 20b
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
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Hot water efficiency improved
Floor insulation added or improved
More low energy lighting installed
Planning history
- Dec 2021Loft ConversionOutlineIn report
Application to certify that the proposed formation of 1no dormer to rear roof slope and insertion of 1no rooflight to front roof slope in association with loft conversion, and the creation of a rear single storey conservatory is lawful development
- Agent
- Mangnalls Architecture
ExtensionConservatory- Documents
- 6 docs on file
- Reference
- 21/02978/CPU
We flagged 2 things worth checking at 20b
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.
- Signs of HMO activity in the area
- Larger development activity nearby
30-day money-back guarantee
Sales history & valuation
20b valuation sits well clear of the typical sold price in this postcode.
£399,000
Modelled from EPC, postcode comparables.
£420,000
Recorded with HM Land Registry.
Sales timeline
6 April 2017Most recent
£420,000
Median price across the last 5 sales in OX4 1BA: £408,000 (2025–2018).
Everything we know about 20b, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
What we flagged
- Signs of HMO activity in the area
- Larger development activity nearby
Versus other Cave Street homes
On floor area, 20b runs well behind the street norm.
Price per m²
£7,925
Street avg £6,349
Floor Area
53 m²
Street avg 61 m²
Habitable Rooms
3 rooms
Street avg 3 rooms
CO₂ Emissions
1.8 t/year
Street avg 2.4 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
7/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Glebe Street — bus stop.
Closest school
0.4 km
East Oxford Primary School. 29 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
49.9dB
Night-time· 23:00 – 07:00
42.4dB