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9 Allt Y Wennol, Pontprennau, Cardiff, CF23 8AS

EPC B

Estimated value

£449,000

  • Since the 2012 sale (£244,000)+84%
  • Against CF23 8AS's recent median (£295,000)+52%

Newest record on this page: March 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
Bedrooms
4
Bathrooms
2
Floor area
114 m²
1227 sq ft
Energy rating
B
Score 86
Council tax
Band F
Tenure
Private Rental
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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

£449,000

  • Against its 2012 sale (£244,000)+84%
  • Against CF23 8AS's recent median (£295,000)+52%

Your note and figure are shown publicly on this page.

How the estimate is made

The estimate for 9 Allt Y Wennol is modelled from its 114 m² EPC floor area, its 2 recorded sales and recent sales of comparable homes in CF23 8AS. 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

    114 m² from the EPC lodged in June 2025

  • Sales of this home

    2 sales recorded, the latest in 2012

  • Recent sales in CF23 8AS

    5 sales, median £295,000 (2026–2015)

This page or the full report?

DataThis pageFull report
SalesLatest sale shown: March 2026Latest 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.

9 Allt Y Wennol valuation sits well clear of the typical sold price in this postcode.

Sales timeline

  1. 4 September 2012Most recent

    £244,000

    +41.0%over 10 years

  2. 29 April 2002

    £172,995

Median price across the last 5 sales in CF23 8AS: £295,000 (2026–2015).

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

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Overview

About 9 Allt Y Wennol

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

9 Allt Y Wennol is a four-bedroom detached house in Pontprennau, Cardiff, Cardiff (CF23 8AS). It has a recorded floor area of 114 m² (around 1227 sq ft), construction records dating it to 1996-2002 and council tax band F. The latest certificate (June 2025) returns a high B (score 86), putting the home a stone's throw from an A rating. When first surveyed in October 2011 the rating was C, the property has climbed 1 band since. Between certificates, lighting went from Good to Very Good.

On energy efficiency it sits in the top 10% of properties in this postcode. Across 2002–2012, sale prices on this property compounded at 3.4% per year. Today's modelled estimate of £449,000 sits 84% above the 2012 sale of £244,000. On the market in September 2012 and unlisted since — roughly 14 years.

Specifications

What this property has

Pulled from EPC certificates, claim submissions and our property model. Empty categories are hidden — we only show what's known.

Inside

  • Bedrooms4
  • Bathrooms2
Before you decide

Everything you need to know about 9 Allt Y Wennol

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

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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.

9 Allt Y Wennol ranks among the most efficient homes in the postcode for energy use.

Current Certificate(1 of 3)
Jun 2025

EPC Rating

A
B
B86
C
D
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Good
CO2 Emissions
1.7 t/year
Occupancy
Rented

Certificate validity

Valid until 11 June 2035

8 years remaining

Property Improvements

Changes detected from historical EPC data

May 2015from Oct 2011
Roof Insulation
InsulatedWell Insulated

Loft insulation upgraded to recommended levels

Low Energy Lighting
55%76%

More low energy lighting installed

Jun 2025from May 2015
EPC improved fromC72toB86
Low Energy Lighting
76%100%

More low energy lighting installed

Renewable Energy
NoneSolar PV

Solar PV panels (50 kWp) installed

Planning

Planning history

Applications and permits filed against 9 Allt Y Wennol, Pontprennau, Cardiff, CF23 8AS, sourced from the PlanIt planning register.

9 Allt Y Wennol 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 other Allt Y Wennol homes

Four headline reads against 6 similar houses on this street, drawn from the latest EPC and Land Registry data.

On epc rating, 9 Allt Y Wennol stands well clear of the street.

Price per m²

£2,140

Street avg £2,698

Below

Floor Area

114 m²

Street avg 115 m²

On par

Habitable Rooms

6 rooms

Street avg 6 rooms

On par

CO₂ Emissions

1.7 t/year

Street avg 3.6 t/year

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.
Full Cardiff report

Crime

169/mo

Falling year-on-year across the wider district.

Nearest stop

0.2 km

Clos Cwm Du — bus stop.

Nearest stops

  • Clos Cwm DuBus stop242m
  • Sindercombe ClBus stop279m
  • Pentwyn DriveBus stop305m
  • The FarthingsBus stop332m

Most reported crime locally

  • Violence & Sexual Offences995 reports33%
  • Anti-social Behaviour345 reports11%
  • Public Order344 reports11%
  • Shoplifting340 reports11%

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 2 HomeBuyer Report

Late 20th centuryDetached HouseEPC B

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 £695 · 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.
£417k

1 Clos Nant Y Cwm, Pontprennau

CF23 8LG

4 bed2 bath
£488k

1 Allt Y Wennol, Pontprennau

CF23 8AS

4 bed2 bath
£401k

1 Clos Nant Mwlan, Pontprennau

CF23 8NA

4 bed2 bath
£503k

1 Acorn Grove, Pontprennau

CF23 8NG

4 bed2 bath
£381k

1 Blackberry Way, Pontprennau

CF23 8FE

4 bed2 bath
£363k

1 Clos Dol Heulog, Pontprennau

CF23 8AT

3 bed
£327k

1 Amberwood Close, Pontprennau

CF23 8BZ

3 bed
£321k

1 Clos Alyn, Pontprennau

CF23 8LB

3 bed

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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.
Valuation method in detail
How the estimate is made
The estimate for 9 Allt Y Wennol is modelled from its 114 m² EPC floor area, its 2 recorded sales and recent sales of comparable homes in CF23 8AS. 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. 2 sales are recorded for 9 Allt Y Wennol. 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 9 Allt Y Wennol was lodged in June 2025 at band B and is valid until June 2035. 3 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 9 Allt Y Wennol. 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 18 months, which places each incident at an approximate point. Schools and stops are measured in a straight line from CF23 8AS.
Council tax band
9 Allt Y Wennol is in council tax band F. 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 9 Allt Y Wennol, Pontprennau, Cardiff, CF23 8AS. Each answer is also embedded as structured data for search engines.

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