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Great Barn Guest House, Bonvilston, Cardiff, CF5 6TR

Estimated value

£1,479,000

  • Against CF5 6TR's recent median (£860,000)+72%

Newest record on this page: July 2025. Land Registry and EPC registers update monthly, so this page can trail them by 2–3 months.

Learn about this valuation
Property type
Detached
Habitable rooms
16
From EPC
Floor area
503 m²
5414 sq ft
Energy rating
D
Score 58
Tenure
Owner Occupied
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Valuation

About this valuation

How the figure is worked out and what it's based on. If you know this home, you can tell other visitors what you think it's worth.

Our estimate

£1,479,000

  • Against CF5 6TR's recent median (£860,000)+72%

Your note and figure are shown publicly on this page.

How the estimate is made

The estimate for Great Barn Guest House is modelled from its 503 m² EPC floor area, the absence of a recorded sale and recent sales of comparable homes in CF5 6TR. It is an automated estimate, not a survey or mortgage valuation: condition, layout and improvements that aren't on record can move the real figure either way.

What it's based on

  • Floor area

    503 m² from the EPC lodged in October 2012

  • Sales of this home

    No sale recorded since 1995

  • Recent sales in CF5 6TR

    5 sales, median £860,000 (2025–2025)

This page or the full report?

DataThis pageFull report
SalesLatest sale shown: July 2025Latest available records, read when you order
ValuationEstimate from the last refreshAnalysed against comparable sales
PlanningNone on this homeFull history, plus nearby schemes
Flood riskNot shownIncluded
Price

Sales history & valuation

Every recorded sale of this home, how its price has moved, and what neighbouring properties have sold for.

Great Barn Guest House has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.

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 CF5 6TR: £860,000 (2025–2025).

Risks

What this page doesn't show

1 potential issue has already been flagged for Great Barn Guest House, Bonvilston, Cardiff, CF5 6TR. The detail, evidence and what to ask about it are in the Risks Report.
  • Larger development activity nearbyIn report
  • Flood risk from rivers, sea and surface waterIn report
  • Subsidence and ground-stability signalsIn report
  • Refusals, enforcement and big schemes nearbyIn report

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Overview

About Great Barn Guest House

A plain-English summary derived from public records, EPC certificates, sold prices and local data.

Great Barn Guest House is a detached house in Bonvilston, Cardiff, Cardiff (CF5 6TR). It has a recorded floor area of 503 m² (around 5414 sq ft) and construction records dating it to 1991-1995. The latest certificate (October 2012) shows a D (score 58), a step below the typical UK home. The rating has held steady at D across 2 certificates since October 2012. Main heating runs on lpg. The latest certificate is from October 2012, so improvements made since then won't be reflected.

At 503 m² the property is well over the postcode median (147 m² across 7 EPCs), placing it in the larger end of the local stock.

Before you decide

Everything you need to know about Great Barn Guest House

The true value, the hidden risks and the full sale history, in one report.

Larger development activity nearby

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Preview of the full property report

The data behind every report

  • HM Land Registry, source of sold price history
  • Department for Education, source of schools data
  • Police.uk, source of crime statistics
  • Department for Transport, source of stations and transport links
  • Environment Agency, source of flood risk data
  • Department for Environment, Food & Rural Affairs, source of road noise data
  • PlanIt, source of planning application records
Energy

Energy performance

Every EPC certificate filed against this property — current rating, recorded improvements, and where there's headroom to reach a higher band.

Great Barn Guest House's carbon output runs well above what efficient homes in the postcode produce.

EPC Expired

This certificate is over 10 years old and is no longer valid.Expired 29 Oct 2022

Current Certificate(1 of 2)
Oct 2012

EPC Rating

A
B
C
D
D58
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Average
Windows
Average
CO2 Emissions
14.0 t/year
Occupancy
Owner Occupied

Certificate validity

Expired on 29 October 2022

New assessment needed to sell or let
Planning

Planning history

Applications and permits filed against Great Barn Guest House, Bonvilston, Cardiff, CF5 6TR, sourced from the PlanIt planning register.

Great Barn Guest House has no planning applications on record.

1

But the area is active

1 notable application nearby — larger schemes and conversions that could reshape the street. The report maps them all.

On the street

Versus the street

Four headline reads against 7 similar houses on this street, drawn from the latest EPC and Land Registry data.

Great Barn Guest House outperforms the street on habitable rooms by a wide margin.

EPC Rating

58 (D)

Street avg 49 (E)

On par

Floor Area

503 m²

Street avg 206 m²

Strongly above

CO₂ Emissions

14.0 t/year

Street avg 9.9 t/year

Strongly below

Habitable Rooms

16 rooms

Street avg 6 rooms

Strongly above
Area

The neighbourhood at a glance

A condensed read of the local area. Each tile links through to the full breakdown on the Cardiff district page.

Crime

426/mo

Steady year-on-year across the wider district.

Nearest stop

0.4 km

Pen-yr-Heol House — bus stop.

Nearest stops

  • Pen-yr-Heol HouseBus stop355m
  • Aubrey ArmsBus stop607m
  • The Old ForgeBus stop737m
  • Maes-y-FfynonBus stop884m

Most reported crime locally

  • Violence & Sexual Offences2,365 reports35%
  • Anti-social Behaviour878 reports13%
  • Public Order758 reports11%
  • Shoplifting679 reports10%

Go deeper on the local area

A Local Area report breaks down crime, transport links, schools and air quality in depth.

SDL Surveying

Get a survey for this property

Level 3 Building Survey

Late 20th centuryDetached HouseEPC DDetached over 300m²No mains gas

Because the property is a large detached home over 300m² and has no mains gas supply, we believe a Level 3 building survey should be considered.

From £1,645 · Includes VAT

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Method

How to read this page

Where every figure above comes from, how current it is and what it can't tell you.
How the estimate is made
The estimate for Great Barn Guest House is modelled from its 503 m² EPC floor area, the absence of a recorded sale and recent sales of comparable homes in CF5 6TR. It is an automated estimate, not a survey or mortgage valuation: condition, layout and improvements that aren't on record can move the real figure either way.
Where sold prices come from
Sold prices are HM Land Registry Price Paid Data, which covers residential sales in England and Wales since 1995. No sale is recorded for Great Barn Guest House, which usually means it hasn't changed hands since 1995 or the sale was not for value. Sales normally appear two to three months after completion, so the most recent ones take time to show up anywhere.
Reading the EPC
Energy Performance Certificates rate homes from A (most efficient) to G and last 10 years. The latest one for Great Barn Guest House was lodged in October 2012 at band D and expired in October 2022, so a new one is needed to sell or let. 2 certificates are on record, which shows how the home has changed.
Planning records
Planning applications are collected from local authority registers through PlanIt. None is matched to Great Barn Guest House. Councils sometimes file applications under a different address format, and applications on neighbouring land aren't listed here; the report covers both.
Area figures
Crime is police-recorded street-level data over the last 16 months, which places each incident at an approximate point. Schools and stops are measured in a straight line from CF5 6TR.
FAQ

Common questions

The questions buyers, sellers and homeowners most often ask about Great Barn Guest House, Bonvilston, Cardiff, CF5 6TR. Each answer is also embedded as structured data for search engines.

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