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15 Roundwood Close, Penylan, Cardiff, CF23 9HH

Property type
Semi-detached
Habitable rooms
5
From EPC
Floor area
107 m²
1152 sq ft
Energy rating
E
Score 44
Council tax
Band E
Tenure
Owner Occupied
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Overview

About 15 Roundwood Close

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

15 Roundwood Close is a semi-detached house in Penylan, Cardiff, Cardiff (CF23 9HH). It has a recorded floor area of 107 m² (around 1152 sq ft), construction records dating it to 1950-1966 and council tax band E. The latest certificate (February 2016) shows an E (score 44), well below the UK norm with real room to improve. The recommended improvements would lift it to B (score 83), a 3-band jump. The latest certificate is from February 2016, so improvements made since then won't be reflected.

At 107 m² it's 24.4% larger than the typical home in the postcode (86 m² median across 14 EPCs). On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. It changed hands recently, sold November 2025 for £270,000. Today's modelled estimate of £310,000 is 14.8% above the 2025 sale price.

Before you decide

Everything you need to know about 15 Roundwood Close

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

Pick your report · from £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
Energy

Energy performance

Every EPC certificate filed against this property — current rating, recorded improvements, and where there's headroom to reach a higher band.

15 Roundwood Close sits at the bottom of the postcode for energy efficiency — meaningful headroom to improve.

EPC Expired

This certificate is over 10 years old and is no longer valid.Expired 13 Feb 2026

Current Certificate
Feb 2016

EPC Rating

A
B
C
D
E
E44
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Poor
CO2 Emissions
7.1 t/year
Occupancy
Owner Occupied

Certificate validity

Expired on 13 February 2026

New assessment needed to sell or let
SDL Surveying

Get a survey for this property

Level 2 HomeBuyer Report

Mid 20th centurySemi-Detached BungalowEPC E

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.

From £595 · Includes VAT

Planning

Planning history

Applications and permits filed against 15 Roundwood Close, Penylan, Cardiff, CF23 9HH, sourced from the PlanIt planning register.

15 Roundwood Close has no planning applications on record.

2

But the area is active

2 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.

Price

Sales history & valuation

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

15 Roundwood Close valuation sits well clear of the typical sold price in this postcode.

Current estimate

£310,000

Modelled from EPC, postcode comparables.

See how we calculated this
Last sold (2025)

£270,000

Recorded with HM Land Registry.

Sales timeline

  1. 25 November 2025Most recent

    £270,000

Median price across the last 5 sales in CF23 9HH: £290,000 (2025–2020).

On the street

Versus other Roundwood Close homes

Four headline reads against 14 similar houses on this street, drawn from the latest EPC and Land Registry data.

Years Held for 15 Roundwood Close lags the street by a wide margin.

Price per m²

£2,523

Street avg £2,665

Below

Floor Area

107 m²

Street avg 90 m²

Strongly above

Habitable Rooms

5 rooms

Street avg 6 rooms

Below

CO₂ Emissions

7.1 t/year

Street avg 3.1 t/year

Strongly below
Before you decide

Everything you need to know about 15 Roundwood Close

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

Pick your report · from £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.
£311k

1 Ffordd Nowell, Penylan

CF23 9FA

£337k

1 Kingwood Close, Penylan

CF23 9HE

3 bed1 bath
£339k

1 Doe Close, Penylan

CF23 9HJ

£280k

1 Grafton Close, Penylan

CF23 9JA

£350k

1 Firstbrook Close

CF23 9ER

3 bed2 bath
£360k

1 Baber Close

CF23 9BX

£264k

1 Howardian Close, Penylan

CF23 9AG

£249k

1 Eastside Quarter, Maelfa, Llanedeyrn

CF23 9PN

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

169/mo

Falling year-on-year across the wider district.

Nearest stop

0.1 km

Llanedeyrn Road — 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 15 Roundwood Close, Penylan, Cardiff, CF23 9HH. Each answer is also embedded as structured data for search engines.