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17 Roundwood Close, Penylan, Cardiff, CF23 9HH

Property type
Semi-detached
Habitable rooms
4
From EPC
Floor area
84 m²
904 sq ft
Energy rating
C
Score 69
Council tax
Band E
Tenure
Owner Occupied
Overview

About 17 Roundwood Close

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

17 Roundwood Close is a semi-detached house in Penylan, Cardiff, Cardiff (CF23 9HH). It has a recorded floor area of 84 m² (around 904 sq ft), construction records dating it to 1976-1982 and council tax band E. The latest certificate (February 2022) shows a C (score 69), just inside the C band. When first surveyed in January 2014 the rating was F, the property has climbed 3 bands since. Between certificates, wall efficiency went from Poor to Good, roof efficiency went from Very Poor to Average and window efficiency went from Average to Good. The recommended improvements would push it to B (score 82).

It hasn't traded since June 2002, a hold of 24 years that's notably long for the area. Today's modelled estimate of £312,000 sits 141.9% above the 2002 sale of £128,995. On a £-per-square-foot basis, the last sale (£143/sq ft) was about 42.3% below the postcode norm.

Before you decide

Everything you need to know about 17 Roundwood Close

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

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
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(1 of 3)
Feb 2022

EPC Rating

A
B
C
C69
D
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Good
CO2 Emissions
3.0 t/year
Occupancy
Owner Occupied

Property Improvements

Changes detected from historical EPC data

Oct 2021from Jan 2014
EPC improved fromF32toD66
Heating Controls
Prog + StatFull

Heating controls upgraded for better temperature management

Hot Water
Main (No Stat)Main System

Hot water system upgraded

Windows
AverageGood

Window efficiency improved

Wall Insulation
UninsulatedPartial Insulation

Wall insulation upgraded

Roof
Very PoorAverage

Roof insulation improved

Low Energy Lighting
44%67%

More low energy lighting installed

Feb 2022from Oct 2021
EPC improved fromD66toC69
Wall Insulation
Partial InsulationInsulated Cavity

Wall insulation upgraded

SDL Surveying

Get a survey for this property

Level 2 HomeBuyer Report

Late 20th centurySemi-Detached BungalowEPC C

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 17 Roundwood Close, Penylan, Cardiff, CF23 9HH, sourced from the PlanIt planning register.

17 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.

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

Current estimate

£312,000

Modelled from EPC, postcode comparables.

See how we calculated this
Last sold (2002)

£128,995

Recorded with HM Land Registry.

Sales timeline

  1. 27 June 2002Most recent

    £128,995

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.

Habitable Rooms for 17 Roundwood Close lags the street by a wide margin.

Price per m²

£1,536

Street avg £2,778

Strongly below

Floor Area

84 m²

Street avg 92 m²

On par

Habitable Rooms

4 rooms

Street avg 6 rooms

Strongly below

CO₂ Emissions

3.0 t/year

Street avg 3.4 t/year

On par
Before you decide

Everything you need to know about 17 Roundwood Close

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

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.
£328k

1 Kingwood Close, Penylan

CF23 9HE

3 bed1 bath
£294k

1 Ffordd Nowell, Penylan

CF23 9FA

£344k

1 Doe Close, Penylan

CF23 9HJ

£280k

1 Grafton Close, Penylan

CF23 9JA

£350k

1 Firstbrook Close

CF23 9ER

3 bed2 bath
£274k

1 Howardian Close, Penylan

CF23 9AG

£360k

1 Baber Close

CF23 9BX

£253k

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

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

Crime

9/mo

Rising 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 17 Roundwood Close, Penylan, Cardiff, CF23 9HH. Each answer is also embedded as structured data for search engines.