Skip to content
UK Property Looker

Blaen Bielly Farm, Mountain Road, Pentyrch, Cardiff, CF15 9QP

2 planning records

Estimated value

£880,000

  • Since the 2025 sale (£800,000)+10%
  • Against CF15 9QP's recent median (£300,000)+193%

Newest record on this page: January 2026. 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
11
From EPC
Floor area
301 m²
3240 sq ft
Energy rating
D
Score 61
Council tax
Band H
Tenure
Owner Occupied
Get directions (opens in a new tab)
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

£880,000

  • Against its 2025 sale (£800,000)+10%
  • Against CF15 9QP's recent median (£300,000)+193%

Your note and figure are shown publicly on this page.

How the estimate is made

The estimate for Blaen Bielly Farm is modelled from its 301 m² EPC floor area, its 1 recorded sale and recent sales of comparable homes in CF15 9QP. 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

    301 m² from the EPC lodged in June 2024

  • Sales of this home

    1 sale recorded, the latest in 2025

  • Recent sales in CF15 9QP

    5 sales, median £300,000 (2022–2018)

This page or the full report?

DataThis pageFull report
SalesLatest sale shown: January 2025Latest available records, read when you order
ValuationEstimate from the last refreshAnalysed against comparable sales
Planning1 of 2 applicationsFull 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.

Latest sale on Blaen Bielly Farm was the highest on Land Registry record across the postcode.

Sales timeline

  1. 16 January 2025Most recent

    £800,000

Median price across the last 5 sales in CF15 9QP: £300,000 (2022–2018).

Risks

What this page doesn't show

Nothing is flagged from the data on this page, but these checks are only run in the report. The detail, evidence and what to ask about it are in the Risks Report.
  • Flood risk from rivers, sea and surface waterIn report
  • Subsidence and ground-stability signalsIn report
  • Refusals, enforcement and big schemes nearbyIn report

One time fee only - money back guarantee

Overview

About Blaen Bielly Farm

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

Blaen Bielly Farm is a detached house in Pentyrch, Cardiff, Cardiff (CF15 9QP). It has a recorded floor area of 301 m² (around 3240 sq ft), construction records dating it to 1983-1990 and council tax band H. The latest certificate (June 2024) shows a D (score 61), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 74).

2 planning records sit against the property, 0 approved, 1 refused, 1 pending. An active application for an extension is awaiting a decision. At 301 m² the property is well over the postcode median (130 m² across 12 EPCs), placing it in the larger end of the local stock. Today's modelled estimate of £880,000 is 10% above the 2025 sale price. On a £-per-square-foot basis, the last sale (£247/sq ft) was about 57.4% above the typical sold price in the postcode. Most recent transfer: January 2025 at £800,000.

Before you decide

Everything you need to know about Blaen Bielly Farm

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

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
Energy

Energy performance

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

Blaen Bielly Farm's carbon output runs well above what efficient homes in the postcode produce.

Current Certificate
Jun 2024

EPC Rating

A
B
C
D
D61
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Average
Windows
Average
CO2 Emissions
11.0 t/year
Occupancy
Owner Occupied

Certificate validity

Valid until 18 June 2034

7 years remaining
Planning

Planning history

Applications and permits filed against Blaen Bielly Farm, Mountain Road, Pentyrch, Cardiff, CF15 9QP, sourced from the PlanIt planning register.

There is a planning application currently awaiting a decision.

2 applications on record at Blaen Bielly Farm, Mountain Road, Pentyrch, Cardiff, CF15 9QP

1 live now
1decisions1extensions71documents
  1. Jun 2017
    Full
    Outcome in report

    THE PROPOSAL IS FOR A TELECOMMUNICATIONS BASE STATION CONSISTING OF A 15.0M LATTICE MAST.SUPPORTING 3 NO ANTENNA,2 NO 300 DISHES C/F 12.50M AND 16.0M TOGETHER WITH ASSOCIATED WITH ASSOCIATED GROUND BASED EQUIPMENT CABINETS AND ANCILLARY DEVELOPMENTS THERE TO.

    Documents
    59 docs on file
    Reference
    17/00075/MNR
    Full record in report
  2. More recent applications — locked
  3. ExtensionDecision

Unlock Blaen Bielly Farm, Mountain Road, Pentyrch, Cardiff, CF15 9QP's full planning history

You're seeing the shape of it. The report has the substance.

  • Every decision — granted, refused or withdrawn (1 on record)
  • All 2 applications on this property in full
  • The 71 documents, officer reports & conditions
  • What the pattern means for extending or converting here
£14.99one-off · instant

One time fee only - money back guarantee

On the street

Versus other Mountain Road homes

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

Years Held for Blaen Bielly Farm lags the street by a wide margin.

Price per m²

£2,658

Street avg £2,530

On par

Floor Area

301 m²

Street avg 201 m²

Strongly above

Habitable Rooms

11 rooms

Street avg 7 rooms

Strongly above

CO₂ Emissions

11.0 t/year

Street avg 7.6 t/year

Below
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

85/mo

Steady year-on-year across the wider district.

Nearest stop

0.3 km

Pentyrch Shops — bus stop.

Nearest stops

  • Pentyrch ShopsBus stop267m
  • Pentyrch CemeteryBus stop306m
  • Pentyrch War MemorialBus stop325m
  • Pentyrch SurgeryBus stop338m

Most reported crime locally

  • Violence & Sexual Offences366 reports33%
  • Anti-social Behaviour150 reports14%
  • Public Order141 reports13%
  • Shoplifting104 reports9%

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 300m²

Because the property is a large detached home over 300m², we believe a Level 3 building survey should be considered.

From £1,360 · Includes VAT

Comparables

Similar properties nearby

A handful of close matches in the same postcode area, ranked by likeness on bedrooms, type and floor area.
£685k

1 Clos Darren Las, Creigiau

CF15 9SL

5 bed3 bath
£587k

1 Clos Goch, Pentyrch

CF15 9RA

4 bed1 bath
£572k

1 Clawdd Shon Cottages, Temperance Road, Pentyrch

CF15 9PU

£569k

1 Bryn Briallu, Creigiau

CF15 9PR

£548k

1 Bryn Yr Eglwys, Pentyrch

CF15 9QW

4 bed2 bath
£531k

1 Brodeg, Pentyrch

CF15 9TF

5 bed2 bath
£507k

1 Crib Y Lan, Gwaelod Y Garth

CF15 9LA

4 bed
£481k

1 Crib Y Llan Cottages, Gwaelod Y Garth

CF15 9JJ

Property research, connected

Get up to date data on unlimited properties per month

Explore sale histories, valuations, energy ratings and local areas. Ask the assistant to connect the details and take your research further.

Start your research
Method

How to read this page

Where every figure above comes from, how current it is and what it can't tell you.
Valuation method in detail
How the estimate is made
The estimate for Blaen Bielly Farm is modelled from its 301 m² EPC floor area, its 1 recorded sale and recent sales of comparable homes in CF15 9QP. 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. 1 sale is recorded for Blaen Bielly Farm. 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 Blaen Bielly Farm was lodged in June 2024 at band D and is valid until June 2034. Floor area, heating and insulation details on this page come from it.
Planning records
Planning applications are collected from local authority registers through PlanIt. 2 applications are matched to Blaen Bielly Farm. 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 13 months, which places each incident at an approximate point. Schools and stops are measured in a straight line from CF15 9QP.
Council tax band
Blaen Bielly Farm is in council tax band H. Bands are set by the Valuation Office Agency from historic values (1 April 1991 in England, 1 April 2003 in Wales), not today's price; the amount you pay depends on the council's rate for the band.
FAQ

Common questions

The questions buyers, sellers and homeowners most often ask about Blaen Bielly Farm, Mountain Road, Pentyrch, Cardiff, CF15 9QP. Each answer is also embedded as structured data for search engines.

Know this home? Think our valuation is wrong?

Leave a note for other visitors about work done or anything the records miss, and say what you think it's worth. It takes about two minutes.

Keep exploring