13 Gelli Street, Port Tennant, Swansea, SA1 8NJ
About 13 Gelli Street
13 Gelli Street is a three-bedroom mid-terrace house in Port Tennant, Swansea, Swansea (SA1 8NJ). It has a recorded floor area of 92 m² (around 990 sq ft), construction records dating it to 1900-1929 and council tax band B. The latest certificate (April 2024) shows a C (score 70). The recommended improvements would push it to B (score 86). Our model identifies extension potential, subject to local planning policy.
Held since November 2008 — that's 18 years off the open market, well above the local norm. That sale landed at the peak of the pre-credit-crunch market, which is a useful reference point when interpreting the price. At 92 m² it's 15% larger than the typical home in the postcode (80 m² median across 37 EPCs). Its energy rating outperforms most of the postcode (better than 76% of similar EPCs). Across 2008–2008, sale prices on this property compounded at 70.4% per year. Today's modelled estimate of £130,000 is 13% above the 2008 sale price. On a £-per-square-foot basis, the last sale (£116/sq ft) was about 16.2% above the typical sold price in the postcode.
What this property has
Inside
- Bedrooms3
- Bathrooms1
Building
- Extension potentialPossible
Everything you need to know about 13 Gelli Street
The true value, the hidden risks and the full sale history, in one report.
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Energy performance
EPC Rating
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
13 Gelli Street has no planning applications on record.
But the area is active
53 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
13 Gelli Street changed hands twice within eighteen months — unusual for the area.
£130,000
Modelled from EPC, postcode comparables and a sale-price growth of 70.4% per year over 1 year.
£115,000
Growth on file: 70.4% per year over 1 year.
Sales timeline
26 November 2008Most recent
£115,000
+70.4%25 September 2008
£67,500
Median price across the last 5 sales in SA1 8NJ: £127,000 (2025–2021).
Nearby sales in SA1 8NJ
35 Gelli Street, Port Tennant, Swansea, SA1 8NJ
Sold Jan 2025
£127,0003 Gelli Street, Port Tennant, Swansea, SA1 8NJ
Sold Sept 2024
£137,95040 Gelli Street, Port Tennant, Swansea, SA1 8NJ
Sold Aug 2024
£104,9509 Gelli Street, Port Tennant, Swansea, SA1 8NJ
Sold Jan 2024
£87,00037 Gelli Street, Port Tennant, Swansea, SA1 8NJ
Sold Oct 2021
£137,000
Versus other Gelli Street homes
13 Gelli Street outperforms the street on epc rating by a wide margin.
Price per m²
£1,250
Street avg £1,173
Floor Area
92 m²
Street avg 86 m²
Habitable Rooms
4 rooms
Street avg 4 rooms
CO₂ Emissions
2.9 t/year
Street avg 3.5 t/year
Everything you need to know about 13 Gelli Street
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
St Stephens Church — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.






