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21 St Mellons Road, Marshfield, Cardiff, CF3 2TX

EPC B8 planning records
Property type
Detached
Floor area
166 m²
1787 sq ft
Energy rating
B
Score 85
Council tax
Band F
Overview

About 21 St Mellons Road

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

21 St Mellons Road is a detached house in Marshfield, Cardiff, Cardiff (CF3 2TX). It has a recorded floor area of 166 m² (around 1787 sq ft), construction records dating it to 2020 and council tax band F. The latest certificate (October 2022) 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 92).

At 166 m² the property is well over the postcode median (114 m² across 23 EPCs), placing it in the larger end of the local stock. Its energy rating outperforms most of the postcode (better than 87% of similar EPCs). On a £-per-square-foot basis, the last sale (£277/sq ft) was about 21.4% above the typical sold price in the postcode. 8 planning records sit against the property, 6 approved, 1 refused. Last sale on file: £495,000 in January 2024.

Before you decide

Everything you need to know about 21 St Mellons Road

The true value, the hidden risks and the full sale history, in one report.

Larger development activity nearby

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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 Rating

A
B
B85
C
D
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Very Good
CO2 Emissions
2.2 t/year
Occupancy
—
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Level 2 HomeBuyer Report

21st centuryDetached HouseEPC B

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Planning

Planning history

Applications and permits filed against 21 St Mellons Road, Marshfield, Cardiff, CF3 2TX, sourced from the PlanIt planning register.

21 St Mellons Road has been through 6 approved planning applications — a well-evolved property.

8 applications on record at 21 St Mellons Road, Marshfield, Cardiff, CF3 2TX

1 live now
7decisions258documents1nearby
Flagged:Retrospective
  1. Dec 2015
    Demolition And RebuildFull
    Outcome in report

    DEMOLITION OF EXISTING DWELLING AND ERECTION OF 4NO. REPLACEMENT DWELLINGS INCLUDING WIDENING OF ACCESS

    Documents
    23 docs on file
    Reference
    15/1023
    Full record in report
  2. More recent applications — locked
  3. Change Of UseDecision
  4. ConversionDecision

+ 5 more applications in the report

Unlock 21 St Mellons Road, Marshfield, Cardiff, CF3 2TX's full planning history

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

  • Every decision — granted, refused or withdrawn (7 on record)
  • All 8 applications on this property in full, plus 1 notable nearby
  • The 258 documents, officer reports & conditions
  • What the pattern means for extending or converting here
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Price

Sales history & valuation

Recorded transactions, our model's current estimate, and a quick read on what neighbouring properties have sold for.

21 St Mellons Road valuation sits well clear of the typical sold price in this postcode.

Current estimate

£526,000

Modelled from EPC, postcode comparables.

See how we calculated this
Last sold (2024)

£495,000

Recorded with HM Land Registry.

Sales timeline

  1. 5 January 2024Most recent

    £495,000

Median price across the last 5 sales in CF3 2TX: £507,500 (2025–2023).

On the street

Versus other St Mellons Road homes

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

21 St Mellons Road outperforms the street on epc rating by a wide margin.

Price per m²

£2,982

Street avg £2,535

On par

Floor Area

166 m²

Street avg 140 m²

Above

CO₂ Emissions

2.2 t/year

Street avg 4.4 t/year

Strongly above

Years Held

2 years

Street avg 10 years

Strongly below
Before you decide

Everything you need to know about 21 St Mellons Road

The true value, the hidden risks and the full sale history, in one report.

Larger development activity nearby

Pick your report · every report is £14.99

One time fee only - money back guarantee

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
Comparables

Similar properties nearby

A handful of close matches in the same postcode area, ranked by likeness on bedrooms, type and floor area.
£526k

1 Cambrian Grove, Marshfield

CF3 2US

4 bed2 bath
£515k

1 Groes Fawr Close, Marshfield

CF3 2AH

£509k

1 Bayview Cottage, Wellfield Road, Marshfield

CF3 2UB

£505k

1 Herbert Close, Marshfield

CF3 2UD

£489k

1 Blacktown Gardens, Marshfield

CF3 2SF

4 bed
£575k

1 Cambrian Crescent, Marshfield

CF3 2TD

5 bed4 bath
£475k

1 Cypress Crescent, St Mellons

CF3 2WL

4 bed2 bath
£473k

1 Acorn Place, Castleton

CF3 2WE

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

Reported crime in the wider district is trending notably upward year-on-year.

Crime

3/mo

Rising year-on-year across the wider district.

Nearest stop

0.3 km

Oakfields — bus stop.

Go deeper on the local area

A Local Area report breaks down crime, transport links, schools and air quality in depth.

FAQ

Common questions

The questions buyers, sellers and homeowners most often ask about 21 St Mellons Road, Marshfield, Cardiff, CF3 2TX. Each answer is also embedded as structured data for search engines.