23 Sybil Street, Clydach, Swansea, SA6 5EU
About 23 Sybil Street
23 Sybil Street is an end-of-terrace house in Clydach, Swansea, Swansea (SA6 5EU). It has a recorded floor area of 94 m² (around 1012 sq ft), construction records dating it to before 1900 and council tax band B. The latest certificate (March 2019) shows a C (score 77), near the top of the C band. When first surveyed in March 2015 the rating was F, the property has climbed 3 bands since. Between certificates, wall efficiency went from Very Poor to Very Good, roof efficiency went from Average to Very Good and window efficiency went from Average to Good. The recommended improvements would push it to B (score 88).
At 94 m² it's 16% larger than the typical home in the postcode (81 m² median across 31 EPCs). Its energy rating outperforms most of the postcode (better than 71% of similar EPCs). Across 2015–2019, sale prices on this property compounded at 31.8% per year. Today's modelled estimate of £184,000 is 26.9% above the 2019 sale price. On a £-per-square-foot basis, the last sale (£143/sq ft) was about 55.2% above the typical sold price in the postcode. Most recent transfer: May 2019 at £145,000.
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Hot water efficiency improved
Window efficiency improved
Wall insulation upgraded
Loft insulation upgraded to recommended levels
Floor insulation added or improved
More low energy lighting installed
Get a survey for this property
Level 3 Building Survey
Because the property was built before 1919 and has been extended more than once, we believe a Level 3 building survey should be considered.
From £820 · Includes VAT
Planning history
23 Sybil Street has no planning applications on record.
But the area is active
2 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
23 Sybil Street has more than tripled in price since its earliest registered sale in 2015.
£184,000
Modelled from EPC, postcode comparables and a sale-price growth of 31.8% per year over 4 years.
£145,000
Growth on file: 31.8% per year over 4 years.
Sales timeline
23 May 2019Most recent
£145,000
+202.1%over 4 years21 May 2015
£48,000
Median price across the last 5 sales in SA6 5EU: £145,000 (2024–2022).
Nearby sales in SA6 5EU
20 Sybil Street, Clydach, Swansea, SA6 5EU
Sold Nov 2024
£145,00024 Sybil Street, Clydach, Swansea, SA6 5EU
Sold Jul 2024
£64,00026 Sybil Street, Clydach, Swansea, SA6 5EU
Sold Feb 2024
£103,86138 Sybil Street, Clydach, Swansea, SA6 5EU
Sold Aug 2023
£222,45042 Sybil Street, Clydach, Swansea, SA6 5EU
Sold Dec 2022
£189,995
Versus other Sybil Street homes
EPC Rating for 23 Sybil Street runs comfortably ahead of the street norm.
Price per m²
£1,543
Street avg £1,397
Floor Area
94 m²
Street avg 89 m²
Habitable Rooms
4 rooms
Street avg 5 rooms
CO₂ Emissions
2.0 t/year
Street avg 4.2 t/year
Similar properties nearby
The neighbourhood at a glance
Crime
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Carpenters Arms — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







