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1 Forge House, Newport Road, Old St Mellons, Cardiff, CF3 5UA

Estimated value

£223,000

  • Since the 2011 sale (£150,000)+49%
  • Against CF3 5UA's recent median (£325,000)-31%

Newest record on this page: February 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
Floor 00
Habitable rooms
5
From EPC
Floor area
148 m²
1593 sq ft
Energy rating
D
Score 64
Council tax
Band E
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

£223,000

  • Against its 2011 sale (£150,000)+49%
  • Against CF3 5UA's recent median (£325,000)-31%

Your note and figure are shown publicly on this page.

How the estimate is made

The estimate for 1 Forge House is modelled from its 148 m² EPC floor area, its 1 recorded sale and recent sales of comparable homes in CF3 5UA. 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

    148 m² from the EPC lodged in November 2023

  • Sales of this home

    1 sale recorded, the latest in 2011

  • Recent sales in CF3 5UA

    5 sales, median £325,000 (2026–2022)

This page or the full report?

DataThis pageFull report
SalesLatest sale shown: February 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.

Sales timeline

  1. 14 September 2011Most recent

    £150,000

Median price across the last 5 sales in CF3 5UA: £325,000 (2026–2022).

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 1 Forge House

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

1 Forge House is a detached house in Old St. Mellons, Cardiff, Cardiff (CF3 5UA). It has a recorded floor area of 148 m² (around 1593 sq ft), construction records dating it to 1950-1966 and council tax band E. The latest certificate (November 2023) shows a D (score 64), on the cusp of jumping into the C band. When first surveyed in August 2010 the rating was E, the property has climbed 1 band since. Between certificates, hot-water efficiency went from Average to Good, lighting went from Average to Very Good and main heating went from Average to Good. The recommended improvements would push it to C (score 71).

At 148 m² the property is well over the postcode median (65 m² across 28 EPCs), placing it in the larger end of the local stock. It lags the bulk of the postcode on energy efficiency (less efficient than 82% of similar EPCs). Today's modelled estimate of £223,000 is 48.7% above the 2011 sale price. On a £-per-square-foot basis, the last sale (£94/sq ft) was about 43.9% below the postcode norm. Last changed hands 15 years ago, in September 2011.

Before you decide

Everything you need to know about 1 Forge House

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.
Current Certificate(1 of 2)
Nov 2023

EPC Rating

A
B
C
D
D64
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Good
CO2 Emissions
5.2 t/year
Occupancy
Rented

Certificate validity

Valid until 8 November 2033

6 years remaining

Property Improvements

Changes detected from historical EPC data

Nov 2023from Aug 2010
EPC improved fromE46toD64
Heating Controls
Prog + TRVsFull

Heating controls upgraded for better temperature management

Hot Water
AverageGood

Hot water efficiency improved

Low Energy Lighting
40%82%

More low energy lighting installed

Planning

Planning history

Applications and permits filed against 1 Forge House, Newport Road, Old St Mellons, Cardiff, CF3 5UA, sourced from the PlanIt planning register.

1 Forge House has no planning applications on record.

A planning report still maps activity across the surrounding area and reads this property's extension & conversion potential.

On the street

Versus other Newport Road homes

Four headline reads against 18 similar flats on this street, drawn from the latest EPC and Land Registry data.

1 Forge House is notably below the street on epc rating.

EPC Rating

64 (D)

Street avg 76 (C)

Strongly below

Floor Area

148 m²

Street avg 73 m²

Strongly above

CO₂ Emissions

5.2 t/year

Street avg 1.9 t/year

Strongly below

Habitable Rooms

5 rooms

Street avg 3 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.
Full Cardiff report

Crime

242/mo

Falling year-on-year across the wider district.

Nearest stop

0.1 km

Bluebell Inn — bus stop.

Nearest stops

  • Bluebell InnBus stop93m
  • Tarwick DriveBus stop257m
  • Llaneirwg WayBus stop274m
  • Llaneirwg WayBus stop341m

Most reported crime locally

  • Violence & Sexual Offences1,550 reports36%
  • Anti-social Behaviour627 reports14%
  • Public Order468 reports11%
  • Criminal Damage & Arson424 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 2 HomeBuyer Report

Mid 20th centuryGround Floor FlatEPC 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 £545 · 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.
£224k

1 Dickens Avenue, Llanrumney

CF3 5LX

£209k

1 Blackmoor Place, Llanrumney

CF3 5TS

£207k

1 Arnold Avenue, Llanrumney

CF3 5PP

£200k

1 Bronte Close, Llanrumney

CF3 5PN

3 bed
£197k

1 Banwell Place, Llanrumney

CF3 5SH

3 bed
£192k

1 Blackbirds Way, St Mellons

CF3 5RE

£191k

1 Bridgwater Road, Llanrumney

CF3 5TF

£263k

1 Captain S View, Braunton Crescent, Llanrumney

CF3 5AD

2 bed1 bath

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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 1 Forge House is modelled from its 148 m² EPC floor area, its 1 recorded sale and recent sales of comparable homes in CF3 5UA. 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 1 Forge House. 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 1 Forge House was lodged in November 2023 at band D and is valid until November 2033. 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 1 Forge 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 18 months, which places each incident at an approximate point. Schools and stops are measured in a straight line from CF3 5UA.
Council tax band
1 Forge House is in council tax band E. 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 1 Forge House, Newport Road, Old St Mellons, Cardiff, CF3 5UA. Each answer is also embedded as structured data for search engines.

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