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15 Alltmawr Road, Cardiff, CF23 6NQ

2 planning records

Estimated value

£826,000

  • Since the 2021 sale (£660,000)+25%
  • Against CF23 6NQ's recent median (£737,500)+12%

Newest record on this page: July 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
7
From EPC
Floor area
161 m²
1733 sq ft
Energy rating
C
Score 74
Council tax
Band G
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

£826,000

  • Against its 2021 sale (£660,000)+25%
  • Against CF23 6NQ's recent median (£737,500)+12%

Your note and figure are shown publicly on this page.

How the estimate is made

The estimate for 15 Alltmawr Road is modelled from its 161 m² EPC floor area, its 1 recorded sale and recent sales of comparable homes in CF23 6NQ. 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

    161 m² from the EPC lodged in July 2026

  • Sales of this home

    1 sale recorded, the latest in 2021

  • Recent sales in CF23 6NQ

    5 sales, median £737,500 (2025–2022)

This page or the full report?

DataThis pageFull report
SalesLatest sale shown: December 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.

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

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 15 Alltmawr Road

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

15 Alltmawr Road is a detached house in Cardiff (CF23 6NQ). It has a recorded floor area of 161 m² (around 1733 sq ft), construction records dating it to 1930-1949 and council tax band G. The latest certificate (July 2026) shows a C (score 74). When first surveyed in April 2021 the rating was E, the property has climbed 2 bands since. Between certificates, roof efficiency went from Average to Good, window efficiency went from Average to Good and lighting went from Good to Very Good. The recommended improvements would push it to B (score 81). This certificate was lodged in the last six months, so the rating reflects current condition.

2 planning records sit against the property, 1 approved, 0 refused. Past consents include an extension, meaningful when judging how the property has evolved. Today's modelled estimate of £826,000 is 25.2% above the 2021 sale price. On a £-per-square-foot basis, the last sale (£381/sq ft) was about 64% above the typical sold price in the postcode. At 161 m² it's 20.7% smaller than the typical home in the postcode (203 m² median across 11 EPCs). Most recent transfer: December 2021 at £660,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.

Before you decide

Everything you need to know about 15 Alltmawr 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.

The EPC has just been inspected, so the rating reflects current condition.

Current Certificate(1 of 2)
Jul 2026

EPC Rating

A
B
C
C74
D
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Good
CO2 Emissions
3.9 t/year
Occupancy
Owner Occupied

Certificate validity

Valid until 22 July 2036

9 years remaining

Property Improvements

Changes detected from historical EPC data

Jul 2026from Apr 2021
EPC improved fromE49toC74
Heating Controls
Prog + StatFull Control

Heating controls upgraded for better temperature management

Windows
Full DoubleHigh Performance

High performance glazing installed

Roof Insulation
PartialInsulated

Roof insulation improved

Low Energy Lighting
58%100%

More low energy lighting installed

Planning

Planning history

Applications and permits filed against 15 Alltmawr Road, Cardiff, CF23 6NQ, sourced from the PlanIt planning register.

2 applications on record at 15 Alltmawr Road, Cardiff, CF23 6NQ

2decisions1extensions34documents1nearby
  1. Oct 2022
    ExtensionFull
    Outcome in report

    Extension: Rear of property

    REMOVAL OF EXISTING EXTENSION AND CONSTRUCTION OF SINGLE STOREY REAR EXTENSION AND FIRST FLOOR EXTENSION ABOVE EXISTING GARAGE AND ASSOCIATED WORKS

    Documents
    27 docs on file
    Reference
    22/01153/DCH
    Full record in report
  2. More recent applications — locked
  3. ConditionsDecision

Unlock 15 Alltmawr Road, Cardiff, CF23 6NQ's full planning history

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

  • Every decision — granted, refused or withdrawn (2 on record)
  • All 2 applications on this property in full, plus 1 notable nearby
  • The 34 documents, officer reports & conditions
  • What the pattern means for extending or converting here
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On the street

Versus other Alltmawr Road homes

Four headline reads against 11 similar houses on this street, drawn from the latest EPC and Land Registry data.

EPC Rating for 15 Alltmawr Road runs comfortably ahead of the street norm.

Price per m²

£4,099

Street avg £3,447

Above

Floor Area

161 m²

Street avg 208 m²

Below

Habitable Rooms

7 rooms

Street avg 7 rooms

Below

CO₂ Emissions

3.9 t/year

Street avg 8.0 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.

Crime

169/mo

Falling year-on-year across the wider district.

Nearest stop

0.2 km

Llangorse Rd — bus stop.

Nearest stops

  • Llangorse RdBus stop210m
  • Westminster CrescentBus stop243m
  • Llandennis AveBus stop300m
  • St Ederyn's RoadBus stop302m

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 3 Building Survey

Early 20th centuryDetached HouseEPC CExtended multiple times (2+ extensions)

Because the property has been extended more than once, we believe a Level 3 building survey should be considered.

From £1,360 · Includes VAT

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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.
How the estimate is made
The estimate for 15 Alltmawr Road is modelled from its 161 m² EPC floor area, its 1 recorded sale and recent sales of comparable homes in CF23 6NQ. 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 15 Alltmawr 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 15 Alltmawr Road was lodged in July 2026 at band C and is valid until July 2036. 2 certificates are on record, which shows how the home has changed.
Planning records
Planning applications are collected from local authority registers through PlanIt. 2 applications are matched to 15 Alltmawr 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 6NQ.
Council tax band
15 Alltmawr Road is in council tax band G. 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 15 Alltmawr Road, Cardiff, CF23 6NQ. Each answer is also embedded as structured data for search engines.

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