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21 Garth Olwg, Gwaelod Y Garth, Cardiff, CF15 9HW

Notable views3 sales on record1 planning record

Estimated value

£376,000

  • Since the 2018 sale (£251,000)+50%
  • Against CF15 9HW's recent median (£242,000)+55%

Newest record on this page: June 2025. 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
2
Floor area
116 m²
1249 sq ft
Energy rating
D
Score 66
Council tax
Band D
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

£376,000

  • Against its 2018 sale (£251,000)+50%
  • Against CF15 9HW's recent median (£242,000)+55%

Your note and figure are shown publicly on this page.

How the estimate is made

The estimate for 21 Garth Olwg is modelled from its 116 m² EPC floor area, its 3 recorded sales and recent sales of comparable homes in CF15 9HW. 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

    116 m² from the EPC lodged in May 2017

  • Sales of this home

    3 sales recorded, the latest in 2018

  • Recent sales in CF15 9HW

    5 sales, median £242,000 (2025–2023)

This page or the full report?

DataThis pageFull report
SalesLatest sale shown: June 2025Latest available records, read when you order
ValuationEstimate from the last refreshAnalysed against comparable sales
Planning1 applicationFull 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.

21 Garth Olwg valuation sits well clear of the typical sold price in this postcode.

Sales timeline

  1. 30 September 2018Most recent

    £251,000

    +32.8%over 13 years

  2. 8 August 2005

    £189,000

    +9.2%over 1 year

  3. 16 February 2004

    £173,000

Median price across the last 5 sales in CF15 9HW: £242,000 (2025–2023).

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 Garth Olwg

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

21 Garth Olwg is a four-bedroom mid-terrace house in Gwaelod-Y-Garth, Cardiff, Cardiff (CF15 9HW). It has a recorded floor area of 116 m² (around 1249 sq ft), construction records dating it to 1930-1949 and council tax band D. The latest certificate (May 2017) shows a D (score 66), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 80). Other recorded features include notable views. The home occupies a cul-de-sac position.

At 116 m² the property is well over the postcode median (81 m² across 18 EPCs), placing it in the larger end of the local stock. One planning record on file: tree works approved in 2014. Past consents include tree works, meaningful when judging how the property has evolved. Across 2004–2018, sale prices on this property compounded at 2.6% per year. Today's modelled estimate of £376,000 is 49.8% above the 2018 sale price. Sold September 2018 for £251,000.

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

Outside

  • Private gardenRear
  • Notable viewsYes
  • Cul-de-sacYes
Before you decide

Everything you need to know about 21 Garth Olwg

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
May 2017

EPC Rating

A
B
C
D
D66
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Average
CO2 Emissions
4.6 t/year
Occupancy
Owner Occupied

Certificate validity

Valid until 29 May 2027

6 months remaining
Planning

Planning history

Applications and permits filed against 21 Garth Olwg, Gwaelod Y Garth, Cardiff, CF15 9HW, sourced from the PlanIt planning register.

1 application on record at 21 Garth Olwg, Gwaelod Y Garth, Cardiff, CF15 9HW

1decisions
  1. Feb 2014
    Tree WorksTrees
    Outcome in report

    REMOVAL OF GOAT WILLOW

    Reference
    GWEA/CA/14/00028
    Full record in report

Unlock 21 Garth Olwg, Gwaelod Y Garth, Cardiff, CF15 9HW's full planning history

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

  • Every decision — granted, refused or withdrawn (1 on record)
  • All 1 application on this property in full
  • What the pattern means for extending or converting here
£14.99one-off · instant

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On the street

Versus other Garth Olwg homes

Four headline reads against 16 similar houses on this street, drawn from the latest EPC and Land Registry data.

Habitable Rooms for 21 Garth Olwg runs comfortably ahead of the street norm.

Price per m²

£2,164

Street avg £2,555

Below

Floor Area

116 m²

Street avg 92 m²

Strongly above

Habitable Rooms

6 rooms

Street avg 5 rooms

Strongly above

CO₂ Emissions

4.6 t/year

Street avg 4.3 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

85/mo

Steady year-on-year across the wider district.

Nearest stop

0.1 km

Garth Olwg — bus stop.

Nearest stops

  • Garth OlwgBus stop73m
  • Glan-y-llyn SquareBus stop358m
  • Taffs Well InnBus stop531m
  • Gwaelod-y-garth Primary SchoolBus stop605m

Most reported crime locally

  • Violence & Sexual Offences366 reports33%
  • Anti-social Behaviour150 reports14%
  • Public Order141 reports13%
  • Shoplifting104 reports9%

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 centuryMid-Terrace HouseEPC DExtended multiple times (2+ extensions)

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

From £955 · 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.
£436k

1 Erw Wen, Pentyrch

CF15 9PQ

4 bed2 bath
£450k

1 Brummell Drive, Creigiau

CF15 9NX

4 bed
£468k

1 Dol Y Felin, Creigiau

CF15 9SN

4 bed
£507k

1 Crib Y Lan, Gwaelod Y Garth

CF15 9LA

4 bed
£548k

1 Bryn Yr Eglwys, Pentyrch

CF15 9QW

4 bed2 bath
£587k

1 Clos Goch, Pentyrch

CF15 9RA

4 bed1 bath
£361k

1 2, Post Office Row, Gwaelod Y Garth

CF15 9HY

3 bed1 bath
£358k

1 Cefn Penuel, Pentyrch

CF15 9TB

3 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 21 Garth Olwg is modelled from its 116 m² EPC floor area, its 3 recorded sales and recent sales of comparable homes in CF15 9HW. 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. 3 sales are recorded for 21 Garth Olwg. 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 Garth Olwg was lodged in May 2017 at band D and is valid until May 2027. Floor area, heating and insulation details on this page come from it.
Planning records
Planning applications are collected from local authority registers through PlanIt. 1 application is matched to 21 Garth Olwg. 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 13 months, which places each incident at an approximate point. Schools and stops are measured in a straight line from CF15 9HW.
Council tax band
21 Garth Olwg is in council tax band D. 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 Garth Olwg, Gwaelod Y Garth, Cardiff, CF15 9HW. Each answer is also embedded as structured data for search engines.

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