21 Hastings Crescent, Old St Mellons, Cardiff, CF3 5DF
About 21 Hastings Crescent
21 Hastings Crescent is a four-bedroom detached house in Old St. Mellons, Cardiff, Cardiff (CF3 5DF). It has a recorded floor area of 100 m² (around 1076 sq ft), construction records dating it to 1996-2002 and council tax band E. The latest certificate (November 2018) shows a D (score 67), on the cusp of jumping into the C band. The recommended improvements would lift it to B (score 84), a 2-band jump. Other recorded features include a conservatory.
Across 1996–2019, sale prices on this property compounded at 5.8% per year. Today's modelled estimate of £457,000 is 30.6% above the 2019 sale price. On a £-per-square-foot basis, the last sale (£325/sq ft) was about 147.4% above the typical sold price in the postcode. Last sale on file: £349,950 in May 2019.
What this property has
Inside
- Bedrooms4
- Bathrooms2
- Dining roomYes
- ConservatoryYes
Outside
- Private gardenSouth-facing
- GarageYes
Building
- RefurbishedYes
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
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Planning history
21 Hastings Crescent has no planning applications on record.
A planning report still maps activity across the surrounding area and reads this property's extension & conversion potential.
Sales history & valuation
Sale price has grown by over 3x since 1996.
£457,000
Modelled from EPC, postcode comparables and a sale-price growth of 5.8% per year over 23 years.
£349,950
Growth on file: 5.8% per year over 23 years.
Sales timeline
7 May 2019Most recent
£349,950
+260.8%over 22 years29 August 1996
£96,995
Median price across the last 5 sales in CF3 5DF: £390,000 (2025–2018).
Nearby sales in CF3 5DF
1 Hastings Crescent, Old St Mellons, Cardiff, CF3 5DF
Sold May 2025
£565,00025 Hastings Crescent, Old St Mellons, Cardiff, CF3 5DF
Sold Jul 2024
£390,00045 Hastings Crescent, Old St Mellons, Cardiff, CF3 5DF
Sold Sept 2022
£455,0009 Hastings Crescent, Old St Mellons, Cardiff, CF3 5DF
Sold Jun 2021
£375,00069 Hastings Crescent, Old St Mellons, Cardiff, CF3 5DF
Sold Oct 2018
£369,950
Versus other Hastings Crescent homes
On price per m², 21 Hastings Crescent stands well clear of the street.
Price per m²
£3,500
Street avg £2,337
Floor Area
100 m²
Street avg 108 m²
Habitable Rooms
5 rooms
Street avg 6 rooms
CO₂ Emissions
3.7 t/year
Street avg 4.0 t/year
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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
0.3 km
Bluebell Inn — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







