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21 Southminster Road, Cardiff, CF23 5AT

Estimated value

£498,000

  • Since the 2022 sale (£450,000)+11%
  • Against CF23 5AT's recent median (£515,000)-3%

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
Mid terrace
Bedrooms
4
Bathrooms
3
Floor area
148 m²
1593 sq ft
Energy rating
D
Score 57
Council tax
Band F
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

£498,000

  • Against its 2022 sale (£450,000)+11%
  • Against CF23 5AT's recent median (£515,000)-3%

Your note and figure are shown publicly on this page.

How the estimate is made

The estimate for 21 Southminster Road is modelled from its 148 m² EPC floor area, its 2 recorded sales and recent sales of comparable homes in CF23 5AT. 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 December 2014

  • Sales of this home

    2 sales recorded, the latest in 2022

  • Recent sales in CF23 5AT

    5 sales, median £515,000 (2026–2023)

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.

The latest sale landed in the post-pandemic price surge — useful context when reading the figure.

Sales timeline

  1. 29 June 2022Most recent

    £450,000

    +87.5%over 9 years

  2. 7 December 2012

    £240,000

Median price across the last 5 sales in CF23 5AT: £515,000 (2026–2023).

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 21 Southminster Road

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

21 Southminster Road is a four-bedroom mid-terrace house in Cardiff (CF23 5AT). It has a recorded floor area of 148 m² (around 1593 sq ft), construction records dating it to 1930-1949 and council tax band F. The latest certificate (December 2014) shows a D (score 57), a step below the typical UK home. The rating has held steady at D across 2 certificates since June 2012. Between certificates, roof efficiency dropped from Good to Average and hot-water efficiency dropped from Good to Average. The recommended improvements would lift it to B (score 82), a 2-band jump. The latest certificate is from December 2014, so improvements made since then won't be reflected.

Across 2012–2022, sale prices on this property compounded at 6.8% per year. Today's modelled estimate of £498,000 is 10.7% above the 2022 sale price. On a £-per-square-foot basis, the last sale (£282/sq ft) was about 53.9% above the typical sold price in the postcode. Most recent transfer: June 2022 at £450,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.

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
  • Bathrooms3
  • Dining roomYes
  • CloakroomYes
  • EnsuiteYes

Outside

  • Private gardenSouth-west-facing

Building

  • RefurbishedYes
Before you decide

Everything you need to know about 21 Southminster Road

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.

Recommended upgrades on file would lift this property by multiple EPC bands.

EPC Expired

This certificate is over 10 years old and is no longer valid.Expired 03 Dec 2024

Current Certificate(1 of 2)
Dec 2014

EPC Rating

A
B
C
D
D57
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Average
Windows
Average
CO2 Emissions
5.7 t/year
Occupancy
Owner Occupied

Certificate validity

Expired on 3 December 2024

New assessment needed to sell or let

Property Improvements

Changes detected from historical EPC data

Dec 2014from Jun 2012
Heating Controls
FullProg + TRVs

Heating controls changed

Hot Water
GoodAverage

Hot water efficiency decreased

Windows
Mostly DoubleFull Double

Windows upgraded, improving insulation

Low Energy Lighting
64%0%

Low energy lighting percentage decreased

Planning

Planning history

Applications and permits filed against 21 Southminster Road, Cardiff, CF23 5AT, sourced from the PlanIt planning register.

21 Southminster Road 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 Southminster Road homes

Four headline reads against 23 similar houses on this street, drawn from the latest EPC and Land Registry data.

EPC Rating for 21 Southminster Road lags the street by a wide margin.

Price per m²

£3,041

Street avg £2,796

On par

Floor Area

148 m²

Street avg 135 m²

Above

Habitable Rooms

6 rooms

Street avg 6 rooms

On par

CO₂ Emissions

5.7 t/year

Street avg 5.2 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

169/mo

Falling year-on-year across the wider district.

Nearest stop

0.1 km

Stacey Road — bus stop.

Nearest stops

  • Stacey RoadBus stop97m
  • Royal OakBus stop255m
  • Fort StreetBus stop266m
  • Timbers SquareBus stop292m

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

Early 20th centuryMid-Terrace 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 £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.
£470k

1 Clos Tecwyn

CF23 5ND

4 bed2 bath
£550k

1 Crystal Avenue

CF23 5QJ

4 bed1 bath
£619k

1 Clos Derwen

CF23 5HJ

4 bed2 bath
£620k

1 Clos Edno

CF23 5NF

4 bed2 bath
£666k

1 Beatty Avenue

CF23 5QR

4 bed1 bath
£669k

1 Bronwydd Close

CF23 5RA

4 bed2 bath
£770k

1 Balaclava Road

CF23 5BB

4 bed3 bath
£473k

1 Ambleside Avenue

CF23 5PX

3 bed2 bath

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

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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 21 Southminster Road is modelled from its 148 m² EPC floor area, its 2 recorded sales and recent sales of comparable homes in CF23 5AT. 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 21 Southminster Road. 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 21 Southminster Road was lodged in December 2014 at band D and expired in December 2024, 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 21 Southminster Road. 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 5AT.
Council tax band
21 Southminster Road 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 21 Southminster Road, Cardiff, CF23 5AT. Each answer is also embedded as structured data for search engines.

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