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37 Allen Close, Old St Mellons, Cardiff, CF3 5DH

6 sales on record2 planning records

Estimated value

£296,000

  • Since the 2020 sale (£248,000)+19%
  • Against CF3 5DH's recent median (£258,000)+15%

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
Semi-detached
Bedrooms
3
Bathrooms
2
Floor area
71 m²
764 sq ft
Energy rating
C
Score 71
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

£296,000

  • Against its 2020 sale (£248,000)+19%
  • Against CF3 5DH's recent median (£258,000)+15%

Your note and figure are shown publicly on this page.

How the estimate is made

The estimate for 37 Allen Close is modelled from its 71 m² EPC floor area, its 6 recorded sales and recent sales of comparable homes in CF3 5DH. 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

    71 m² from the EPC lodged in September 2020

  • Sales of this home

    6 sales recorded, the latest in 2020

  • Recent sales in CF3 5DH

    5 sales, median £258,000 (2025–2020)

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 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.

37 Allen Close has more than tripled in price since its earliest registered sale in 1997.

Sales timeline

  1. 21 December 2020Most recent

    £248,000

    +45.9%over 13 years

  2. 22 July 2007

    £169,950

    -5.6%

  3. 7 June 2007

    £180,000

    +21.6%over 3 years

  4. 27 May 2004

    £148,000

    +59.2%over 1 year

  5. 27 June 2002

    £92,950

    +36.7%over 5 years

  6. 28 February 1997

    £68,000

Median price across the last 5 sales in CF3 5DH: £258,000 (2025–2020).

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 37 Allen Close

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

37 Allen Close is a three-bedroom semi-detached house in Old St. Mellons, Cardiff, Cardiff (CF3 5DH). It has a recorded floor area of 71 m² (around 764 sq ft), construction records dating it to 1996-2002 and council tax band D. Other recorded features include a conservatory and outbuildings. The latest certificate (September 2020) shows a C (score 71). The recommended improvements would push it to B (score 86).

Last sale on file: £248,000 in December 2020. Across the public record there are 6 sales, relatively high churn for a single property. 2 planning records sit against the property, 2 approved, 0 refused. Past consents include an extension, meaningful when judging how the property has evolved. Across 1997–2020, sale prices on this property compounded at 5.6% per year. Today's modelled estimate of £296,000 is 19.4% above the 2020 sale price. On a £-per-square-foot basis, the last sale (£325/sq ft) was about 136.6% above the typical sold price in the postcode. At 71 m² it's 27.9% smaller than the typical home in the postcode (99 m² median across 24 EPCs).

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

  • Bedrooms3
  • Bathrooms2
  • EnsuiteYes
  • StudyYes
  • ConservatoryYes

Outside

  • Private gardenFront and rear
  • GarageYes
  • OutbuildingsYes
Before you decide

Everything you need to know about 37 Allen 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.
Current Certificate
Sept 2020

EPC Rating

A
B
C
C71
D
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Good
CO2 Emissions
2.4 t/year
Occupancy
Owner Occupied

Certificate validity

Valid until 10 September 2030

3 years remaining
Planning

Planning history

Applications and permits filed against 37 Allen Close, Old St Mellons, Cardiff, CF3 5DH, sourced from the PlanIt planning register.

37 Allen Close has an approved single-storey rear extension on the planning record.

2 applications on record at 37 Allen Close, Old St Mellons, Cardiff, CF3 5DH

2decisions1extensions24documents
  1. Aug 2016
    OutbuildingFull
    Outcome in report

    TO ERECT A SUMMERHOUSE/OFFICE IN THE REAR GARDEN OF THE PROPERTY.

    Documents
    16 docs on file
    Reference
    16/01019/DCH
    Full record in report
  2. More recent applications — locked
  3. ExtensionDecision

Unlock 37 Allen Close, Old St Mellons, Cardiff, CF3 5DH'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
  • The 24 documents, officer reports & conditions
  • What the pattern means for extending or converting here
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On the street

Versus other Allen Close homes

Four headline reads against 24 similar houses on this street, drawn from the latest EPC and Land Registry data.

Price per m² for 37 Allen Close runs comfortably ahead of the street norm.

Price per m²

£3,493

Street avg £2,271

Strongly above

Floor Area

71 m²

Street avg 100 m²

Strongly below

Habitable Rooms

5 rooms

Street avg 6 rooms

Below

CO₂ Emissions

2.4 t/year

Street avg 3.7 t/year

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.
Full Cardiff report

Crime

242/mo

Falling year-on-year across the wider district.

Nearest stop

0.2 km

Llaneirwg Way — bus stop.

Nearest stops

  • Llaneirwg WayBus stop176m
  • Vaindre LaneBus stop360m
  • Wern Fawr LaneBus stop377m
  • Tyrwinch RoadBus stop407m

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 3 Building Survey

Late 20th centurySemi-Detached HouseEPC CPermanent outbuildings

Because the property has permanent outbuildings, we believe a Level 3 building survey should be considered.

From £885 · 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.
£269k

1 Axbridge Crescent, Llanrumney

CF3 5TJ

3 bed
£264k

1 Brendon Close, Llanrumney

CF3 5RJ

3 bed1 bath
£200k

1 Bronte Close, Llanrumney

CF3 5PN

3 bed
£443k

1 Chapel Row Lane, Old St Mellons

CF3 5ST

3 bed
£197k

1 Banwell Place, Llanrumney

CF3 5SH

3 bed
£150k

1 Bluebell Drive

CF3 5RA

3 bed
£263k

1 Captain S View, Braunton Crescent, Llanrumney

CF3 5AD

2 bed1 bath
£538k

1 Courtenay Close, Old St Mellons

CF3 5UL

4 bed2 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 37 Allen Close is modelled from its 71 m² EPC floor area, its 6 recorded sales and recent sales of comparable homes in CF3 5DH. 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. 6 sales are recorded for 37 Allen 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 37 Allen Close was lodged in September 2020 at band C and is valid until September 2030. Floor area, heating and insulation details on this page come from it.
Planning records
Planning applications are collected from local authority registers through PlanIt. 2 applications are matched to 37 Allen 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 5DH.
Council tax band
37 Allen Close 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 37 Allen Close, Old St Mellons, Cardiff, CF3 5DH. Each answer is also embedded as structured data for search engines.

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