15 Castle Street, Barnstaple, EX31 1DR
About 15 Castle Street
15 Castle Street is a mid-terrace house in Barnstaple (EX31 1DR). It has a recorded floor area of 59 m² (around 635 sq ft), construction records dating it to before 1900 and council tax band A. At 59 m² this is the 8th smallest of 9 units on EPC record in the building, where floor areas span 33–59 m². The building's EPC ratings span D to C, with this unit at the bottom. The latest certificate (April 2024) shows a D (score 65), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since April 2013. Between certificates, wall efficiency went from Very Poor to Poor, window efficiency went from Average to Good and hot-water efficiency went from Poor to Good; while roof efficiency dropped from Good to Very Poor.
At 59 m² the property is well over the postcode median (43 m² across 8 EPCs), placing it in the larger end of the local stock. One planning record on file: subdivision refused in 2014.
Know exactly what you're buying at 15 Castle Street
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
Replaced storage heaters with gas boiler
Connected to mains gas supply
Heating controls upgraded for better temperature management
Hot water system upgraded
Window efficiency improved
Wall insulation improved
Planning history
Council records show a subdivision application — the property's legal arrangement has been altered.
- May 2014SubdivisionFullIn report
CONVERSION OF TWO FLATS TO FORM ONE DWELLING HOUSE
- Council
- NOR
- Documents
- 12 docs on file
- Reference
- 57360
We flagged 2 things worth checking at 15 Castle Street
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
15 Castle Street has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£141,000
Modelled from EPC, postcode comparables.
No sales recorded with HM Land Registry
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.
Median price across the last 5 sales in EX31 1DR: £100,000 (2022–2021).
Nearby sales in EX31 1DR
Flat 2, 17 Castle Street, Barnstaple, EX31 1DR
Sold Sept 2022
£130,000Flat 1, 17 Castle Street, Barnstaple, EX31 1DR
Sold Sept 2022
£90,000Flat 6, 17 Castle Street, Barnstaple, EX31 1DR
Sold Jan 2022
£125,000Flat 7, 17 Castle Street, Barnstaple, EX31 1DR
Sold Jan 2021
£100,000Flat 5, 17 Castle Street, Barnstaple, EX31 1DR
Sold Jan 2021
£100,000
Everything we know about 15 Castle Street, 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 Castle Street homes
15 Castle Street outperforms the street on floor area by a wide margin.
EPC Rating
65 (D)
Street avg 65 (D)
Floor Area
59 m²
Street avg 45 m²
CO₂ Emissions
2.6 t/year
Street avg 2.5 t/year
Habitable Rooms
3 rooms
Street avg 2 rooms
Similar properties nearby
The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.3 km
Queens Theatre — bus stop.
Closest school
0.7 km
Yeo Valley Primary School. 13 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
54.5dB

Night-time· 23:00 – 07:00
44.5dB