18 Spring Terrace, Swansea, SA1 3TD
About 18 Spring Terrace
18 Spring Terrace is a two-bedroom mid-terrace house in Swansea (SA1 3TD). It has a recorded floor area of 70 m² (around 753 sq ft), construction records dating it to 1900-1929 and council tax band B. The latest certificate (August 2025) shows a C (score 71). When first surveyed in March 2025 the rating was E, the property has climbed 2 bands since. Between certificates, window efficiency went from Poor to Good and hot-water efficiency went from Average to Good; while lighting dropped from Average to Very Poor. The recommended improvements would push it to B (score 81). Our model identifies extension potential, subject to local planning policy.
Today's modelled estimate of £173,000 sits 51.1% above the 2025 sale of £114,500. On a £-per-square-foot basis, the last sale (£152/sq ft) was about 25.1% above the typical sold price in the postcode. Most recent transfer was March 2025 at £114,500 — fresh data. Its energy rating outperforms most of the postcode (better than 88% of similar EPCs).
What this property has
Inside
- Bedrooms2
- Bathrooms1
Building
- Extension potentialPossible
Everything you need to know about 18 Spring Terrace
The true value, the hidden risks and the full sale history, in one report.
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Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls changed
Hot water efficiency improved
High performance glazing installed
Get a survey for this property
Level 3 Building Survey
Because the property was built before 1919, we believe a Level 3 building survey should be considered.
From £820 · Includes VAT
Planning history
18 Spring Terrace has no planning applications on record.
But the area is active
29 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
18 Spring Terrace valuation sits well clear of the typical sold price in this postcode.
£173,000
Modelled from EPC, postcode comparables.
£114,500
Recorded with HM Land Registry.
Sales timeline
24 March 2025Most recent
£114,500
Median price across the last 5 sales in SA1 3TD: £158,950 (2024–2022).
Nearby sales in SA1 3TD
Versus other Spring Terrace homes
Years Held for 18 Spring Terrace lags the street by a wide margin.
Price per m²
£1,636
Street avg £1,550
Floor Area
70 m²
Street avg 80 m²
Habitable Rooms
5 rooms
Street avg 4 rooms
CO₂ Emissions
1.9 t/year
Street avg 3.6 t/year
Everything you need to know about 18 Spring Terrace
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

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The neighbourhood at a glance
Crime
3/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Argyle Street — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.






