18 Redwood Close, St Mellons, Cardiff, CF3 0BX
About 18 Redwood Close
18 Redwood Close is a one-bedroom semi-detached house in St. Mellons, Cardiff, Cardiff (CF3 0BX). It has a recorded floor area of 37 m² (around 398 sq ft), construction records dating it to 1976-1982 and council tax band A. The latest certificate (April 2017) shows an E (score 51), well below the UK norm with real room to improve. The recommended improvements would lift it to C (score 74), a 2-band jump. Main heating runs on electricity. At 37 m² this is the 5th smallest of 14 units on EPC record in the building, where floor areas span 26–60 m². The building's EPC ratings span F to C across 14 units on file.
Held since February 2003 — that's 23 years off the open market, well above the local norm. Across 2001–2003, sale prices on this property compounded at 68.4% per year. Today's modelled estimate of £112,000 sits 124.2% above the 2003 sale of £49,950. On a £-per-square-foot basis, the last sale (£125/sq ft) was about 17.5% below the postcode norm.
What this property has
Inside
- Bedrooms1
Outside
- ParkingAllocated
Building
- RefurbishedYes
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
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Planning history
18 Redwood Close has no planning applications on record.
But the area is active
1 notable application nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
18 Redwood Close's modelled value sits at over four times its earliest registered sale price (2001).
£112,000
Modelled from EPC, postcode comparables and a sale-price growth of 68.4% per year over 1 year.
£49,950
Growth on file: 68.4% per year over 1 year.
Sales timeline
7 February 2003Most recent
£49,950
+85.0%over 1 year3 December 2001
£27,000
Median price across the last 5 sales in CF3 0BX: £73,500 (2025–2021).
Nearby sales in CF3 0BX
17 Redwood Close, St Mellons, Cardiff, CF3 0BX
Sold Aug 2025
£95,00014 Redwood Close, St Mellons, Cardiff, CF3 0BX
Sold Nov 2022
£70,00011 Redwood Close, St Mellons, Cardiff, CF3 0BX
Sold Jan 2022
£68,0006 Redwood Close, St Mellons, Cardiff, CF3 0BX
Sold Jan 2020
£168,00010 Redwood Close, St Mellons, Cardiff, CF3 0BX
Sold Jun 2017
£137,000
Versus other Redwood Close homes
18 Redwood Close is notably below the street on price per m².
Price per m²
£1,350
Street avg £1,821
Floor Area
37 m²
Street avg 34 m²
Habitable Rooms
2 rooms
Street avg 1 rooms
CO₂ Emissions
2.4 t/year
Street avg 2.7 t/year
Similar properties nearby
1 Aspen Close, St Mellons
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1 Caraway Close, St Mellons
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1 Caradoc Close, St Mellons
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1 Aster Close, St Mellons
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1 Chartley Close, St Mellons
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1 Broadlands Court, St Mellons
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The neighbourhood at a glance
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
0.1 km
Llaneirwg Way — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







