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Llanberis House, Began Road, Old St Mellons, Cardiff, CF3 6XJ

Property type
Detached
Habitable rooms
8
From EPC
Floor area
206 m²
2217 sq ft
Energy rating
D
Score 65
Tenure
Owner Occupied
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Overview

About Llanberis House

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

Llanberis House is a detached house in Old St. Mellons, Cardiff, Cardiff (CF3 6XJ). It has a recorded floor area of 206 m² (around 2217 sq ft) and construction records dating it to 1983-1990. The latest certificate (July 2022) shows a D (score 65), on the cusp of jumping into the C band. The recommended improvements would lift it to B (score 82), a 2-band jump.

Untraded for 25 years, with the last transfer in July 2001. Only one transfer is on record with HM Land Registry, suggesting it has stayed in the same hands for a long time. At 206 m² the property is well over the postcode median (107 m² across 8 EPCs), placing it in the larger end of the local stock. It lags the bulk of the postcode on energy efficiency (less efficient than 75% of similar EPCs). Today's modelled estimate of £780,000 sits 160% above the 2001 sale of £300,000. On a £-per-square-foot basis, the last sale (£135/sq ft) was about 41.1% below the postcode norm.

Before you decide

Everything you need to know about Llanberis 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.

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

Current Certificate
Jul 2022

EPC Rating

A
B
C
D
D65
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Average
Windows
Good
CO2 Emissions
7.5 t/year
Occupancy
Owner Occupied

Certificate validity

Valid until 13 July 2032

5 years remaining
SDL Surveying

Get a survey for this property

Level 2 HomeBuyer Report

Late 20th centuryDetached HouseEPC D

We've checked 10 risk factors against the available data for this property and believe a Level 2 HomeBuyer Report could be a suitable option for you.

From £995 · Includes VAT

Planning

Planning history

Applications and permits filed against Llanberis House, Began Road, Old St Mellons, Cardiff, CF3 6XJ, sourced from the PlanIt planning register.

Llanberis 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.

Price

Sales history & valuation

Recorded transactions, our model's current estimate, and a quick read on what neighbouring properties have sold for.

Llanberis House valuation sits well clear of the typical sold price in this postcode.

Current estimate

£780,000

Modelled from EPC, postcode comparables.

See how we calculated this
Last sold (2001)

£300,000

Recorded with HM Land Registry.

Sales timeline

  1. 9 July 2001Most recent

    £300,000

Median price across the last 5 sales in CF3 6XJ: £410,000 (2024–2022).

On the street

Versus other Began Road homes

Four headline reads against 8 similar houses on this street, drawn from the latest EPC and Land Registry data.

On habitable rooms, Llanberis House stands well clear of the street.

Price per m²

£1,456

Street avg £2,927

Below

Floor Area

206 m²

Street avg 141 m²

Above

Habitable Rooms

8 rooms

Street avg 6 rooms

Strongly above

CO₂ Emissions

7.5 t/year

Street avg 4.8 t/year

Strongly below
Before you decide

Everything you need to know about Llanberis House

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

Larger development activity nearby

Pick your report · from £14.99

One time fee only - money back guarantee

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
Comparables

Similar properties nearby

A handful of close matches in the same postcode area, ranked by likeness on bedrooms, type and floor area.
£715k

1 Minorca Cottages, Michaelston Y Fedw

CF3 6XX

5 bed
£681k

1 New Park Cottages, Castleton

CF3 6US

£630k

1 Tai Derwen, Cefn Mably

CF3 6XR

4 bed2 bath
£623k

1 Heol Bennett, Old St Mellons

CF3 6AF

£551k

1 Ruperra Close, Old St Mellons

CF3 6HX

4 bed2 bath
£548k

1 Rhodfa Lewis, Old St Mellons

CF3 6YP

£1.3m

1 High Trees Court, Druidstone Road, Old St Mellons

CF3 6AZ

£459k

1 George Crescent, Old St Mellons

CF3 6AH

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.
Full Cardiff report

Crime

242/mo

Falling year-on-year across the wider district.

Nearest stop

0.3 km

Tyrwinch Road — bus stop.

Go deeper on the local area

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

FAQ

Common questions

The questions buyers, sellers and homeowners most often ask about Llanberis House, Began Road, Old St Mellons, Cardiff, CF3 6XJ. Each answer is also embedded as structured data for search engines.