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12 Alderwood Close, St Mellons, Cardiff, CF3 0BW

EPC B

Estimated value

£554,000

  • Since the 2024 sale (£500,000)+11%
  • Against CF3 0BW's recent median (£207,000)+168%

Newest record on this page: November 2025. 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
144 m²
1550 sq ft
Energy rating
B
Score 85
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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

£554,000

  • Against its 2024 sale (£500,000)+11%
  • Against CF3 0BW's recent median (£207,000)+168%

Your note and figure are shown publicly on this page.

How the estimate is made

The estimate for 12 Alderwood Close is modelled from its 144 m² EPC floor area, its 2 recorded sales and recent sales of comparable homes in CF3 0BW. 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

    144 m² from the EPC lodged in March 2016

  • Sales of this home

    2 sales recorded, the latest in 2024

  • Recent sales in CF3 0BW

    5 sales, median £207,000 (2025–2011)

This page or the full report?

DataThis pageFull report
SalesLatest sale shown: November 2025Latest 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.

Latest sale on 12 Alderwood Close was the highest on Land Registry record across the postcode.

Sales timeline

  1. 13 June 2024Most recent

    £500,000

    +33.3%over 8 years

  2. 9 June 2016

    £375,000

Median price across the last 5 sales in CF3 0BW: £207,000 (2025–2011).

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 12 Alderwood Close

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

12 Alderwood Close is a four-bedroom detached house in St. Mellons, Cardiff, Cardiff (CF3 0BW). It has a recorded floor area of 144 m² (around 1550 sq ft). The latest certificate (March 2016) returns a high B (score 85), putting the home a stone's throw from an A rating. The recommended improvements would push it to A (score 93). The latest certificate is from March 2016, so improvements made since then won't be reflected.

At 144 m² the property is well over the postcode median (67 m² across 7 EPCs), placing it in the larger end of the local stock. Its energy rating outperforms most of the postcode (better than 86% of similar EPCs). Across 2016–2024, sale prices on this property compounded at 3.7% per year. Today's modelled estimate of £554,000 is 10.8% above the 2024 sale price. On a £-per-square-foot basis, the last sale (£323/sq ft) was about 59.6% above the typical sold price in the postcode. Last sale on file: £500,000 in June 2024.

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
  • EnsuiteYes
  • StudyYes
Before you decide

Everything you need to know about 12 Alderwood Close

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.

EPC Expired

This certificate is over 10 years old and is no longer valid.Expired 16 Mar 2026

Current Certificate
Mar 2016

EPC Rating

A
B
B85
C
D
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Very Good
CO2 Emissions
1.9 t/year
Occupancy
—

Certificate validity

Expired on 16 March 2026

New assessment needed to sell or let
Planning

Planning history

Applications and permits filed against 12 Alderwood Close, St Mellons, Cardiff, CF3 0BW, sourced from the PlanIt planning register.

12 Alderwood Close 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 Alderwood Close homes

Four headline reads against 7 similar houses on this street, drawn from the latest EPC and Land Registry data.

12 Alderwood Close outperforms the street on co₂ emissions by a wide margin.

Price per m²

£3,472

Street avg £2,528

Strongly above

Floor Area

144 m²

Street avg 81 m²

Strongly above

CO₂ Emissions

1.9 t/year

Street avg 3.0 t/year

Strongly above

Years Held

2 years

Street avg 14 years

Strongly 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

242/mo

Falling year-on-year across the wider district.

Nearest stop

0.1 km

Llaneirwg Way — bus stop.

Nearest stops

  • Llaneirwg WayBus stop113m
  • Llaneirwg WayBus stop186m
  • Sanderling DriveBus stop288m
  • Bluebell InnBus stop295m

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

Detached 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.

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Comparables

Similar properties nearby

A handful of close matches in the same postcode area, ranked by likeness on bedrooms, type and floor area.
£496k

1 Cleddau Close, St Mellons

CF3 0SG

4 bed4 bath
£252k

1 Aston Place, St Mellons

CF3 0PH

3 bed1 bath
£250k

1 Brython Drive, St Mellons

CF3 0LR

3 bed
£233k

1 Chervil Close, St Mellons

CF3 0NL

3 bed
£226k

1 Cathcob Close, St Mellons

CF3 0AH

3 bed1 bath
£278k

1 Aster Close, St Mellons

CF3 0JB

2 bed1 bath
£236k

1 Chartley Close, St Mellons

CF3 0SD

2 bed1 bath
£229k

1 Caradoc Close, St Mellons

CF3 0LQ

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 12 Alderwood Close is modelled from its 144 m² EPC floor area, its 2 recorded sales and recent sales of comparable homes in CF3 0BW. 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 12 Alderwood Close. 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 12 Alderwood Close was lodged in March 2016 at band B and expired in March 2026, so a new one is needed to sell or let. Floor area, heating and insulation details on this page come from it.
Planning records
Planning applications are collected from local authority registers through PlanIt. None is matched to 12 Alderwood Close. 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 0BW.
FAQ

Common questions

The questions buyers, sellers and homeowners most often ask about 12 Alderwood Close, St Mellons, Cardiff, CF3 0BW. Each answer is also embedded as structured data for search engines.

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