Flat 1, 17 Castle Street, Barnstaple, EX31 1DR
About Flat 1
Flat 1 is an end-of-terrace house in Barnstaple (EX31 1DR). It has a recorded floor area of 45 m² (around 484 sq ft), construction records dating it to before 1900 and council tax band A. At 45 m² this is the 5th smallest of 7 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 (June 2016) shows a D (score 67), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 77). The latest certificate is from June 2016, so improvements made since then won't be reflected.
Today's modelled estimate of £138,000 sits 53.3% above the 2022 sale of £90,000. On a £-per-square-foot basis, the last sale (£186/sq ft) was about 23.5% below the postcode norm. Sold September 2022 for £90,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Know exactly what you're buying at Flat 1
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 Expired
This certificate is over 10 years old and is no longer valid.Expired 04 Jun 2026
EPC Rating
Planning history
Flat 1 has no planning applications on record.
Notable planning nearby
9applications of note in the surrounding area
We flagged 2 things worth checking at Flat 1
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
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Sales history & valuation
Latest sale on Flat 1 was the lowest on Land Registry record across the postcode.
£138,000
Modelled from EPC, postcode comparables.
£90,000
Recorded with HM Land Registry.
Sales timeline
14 September 2022Most recent
£90,000
Median price across the last 5 sales in EX31 1DR: £110,000 (2022–2021).
Nearby sales in EX31 1DR
Flat 2, 17 Castle Street, Barnstaple, EX31 1DR
Sold Sept 2022
£130,000Flat 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
£100,000Flat 3, 17 Castle Street, Barnstaple, EX31 1DR
Sold Jan 2021
£110,000
Everything we know about Flat 1, 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
Price per m² for Flat 1 lags the street by a wide margin.
Price per m²
£2,000
Street avg £2,661
Floor Area
45 m²
Street avg 47 m²
Habitable Rooms
2 rooms
Street avg 2 rooms
CO₂ Emissions
2.0 t/year
Street avg 2.6 t/year
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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