What type of property is 18 Gelli Street, SA1 8NJ?

18 Gelli Street, SA1 8NJ is a mid-terrace house.

What is the EPC rating for 18 Gelli Street, SA1 8NJ?

The current EPC rating for 18 Gelli Street, SA1 8NJ is D with a score of 67 out of 100, lodged in November 2021. The assessor estimates the property could reach a B. Source: EPC Register.

What is the floor area of 18 Gelli Street, SA1 8NJ?

18 Gelli Street, SA1 8NJ has a recorded floor area of 102 m² (1,098 sq ft). That makes it about 29% larger than the median EPC-recorded property in SA1 8NJ. Source: EPC Register.

How is 18 Gelli Street, SA1 8NJ heated?

The latest EPC at 18 Gelli Street, SA1 8NJ records mains gas as the main heating fuel. Source: EPC Register.

What council tax band is 18 Gelli Street, SA1 8NJ?

18 Gelli Street, SA1 8NJ is in council tax band B. That sits at the lower end of the A-H ladder, typically reflecting smaller floor areas or lower 1991 valuations.

Where is 18 Gelli Street, SA1 8NJ located?

18 Gelli Street, SA1 8NJ sits in Port Tennant, Swansea, Swansea. It falls within the SA1 postcode district.

How safe is the area around 18 Gelli Street, SA1 8NJ?

Police records around 18 Gelli Street, SA1 8NJ show an average of 580 reported crimes per month over the last 16 months. Violent crime makes up roughly 35% of reports, the most common category. The overall trend is broadly stable. Source: Police UK.

What transport links are near 18 Gelli Street, SA1 8NJ?

The closest bus stop to 18 Gelli Street, SA1 8NJ is St Stephens Church, 93m away. In total there are 30 bus stops within the surrounding area.

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18 Gelli Street, Port Tennant, Swansea, SA1 8NJ

Property type

Mid terrace

Habitable rooms

From EPC

Floor area

102 m²

1098 sq ft

Energy rating

Score 67

Council tax

Band B

Tenure

Private Rental

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Overview

About 18 Gelli Street

A plain-English summary derived from public records, EPC certificates, sold prices and local data.

18 Gelli Street is a mid-terrace house in Port Tennant, Swansea, Swansea (SA1 8NJ). It has a recorded floor area of 102 m² (around 1098 sq ft), construction records dating it to 1900-1929 and council tax band B. The latest certificate (November 2021) shows a D (score 67), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since March 2009. Between certificates, roof efficiency went from Good to Very Good and lighting went from Good to Very Good. The recommended improvements would lift it to B (score 90), a 2-band jump.

At 102 m² it's 25.9% larger than the typical home in the postcode (81 m² median across 37 EPCs).

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Everything you need to know about 18 Gelli Street

The true value, the hidden risks and the full sale history, in one report.

Signs of HMO activity in the areaLarger development activity nearby

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Energy

Energy performance

Every EPC certificate filed against this property — current rating, recorded improvements, and where there's headroom to reach a higher band.

Recommended upgrades on file would lift this property by multiple EPC bands.

Current Certificate(1 of 2)

Nov 2021

EPC Rating

D67

Main Heating

Gas

Main Fuel

Gas

Hot Water

Good

Windows

Very Poor

CO2 Emissions

3.6 t/year

Occupancy

Rented

Certificate validity

Valid until 1 November 2031

5 years remaining

Property Improvements

Changes detected from historical EPC data

Nov 2021from Mar 2009

Roof

GoodVery Good

Roof insulation improved

Low Energy Lighting

63%100%

More low energy lighting installed

Get a survey for this property

Level 3 Building Survey

Victorian-eraMid-Terrace HouseEPC DPre-1919 buildSolid (non-cavity) walls

Because the property was built before 1919 and has solid (non-cavity) walls, we believe a Level 3 building survey should be considered.

From £820 · Includes VAT

Planning

Planning history

Applications and permits filed against 18 Gelli Street, Port Tennant, Swansea, SA1 8NJ, sourced from the PlanIt planning register.

18 Gelli Street has no planning applications on record.

But the area is active

47 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.

Price

Sales history & valuation

Recorded transactions, our model's current estimate, and a quick read on what neighbouring properties have sold for.

18 Gelli Street has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.

Current estimate

£135,000

Modelled from EPC, postcode comparables.

See how we calculated this

No sales recorded with HM Land Registry

That can mean the property has never traded since the registry began publishing in 1995, was a new build that hasn't been registered yet, or is held in the same hands long-term.

Median price across the last 5 sales in SA1 8NJ: £127,000 (2026–2024).

Nearby sales in SA1 8NJ

On the street

Versus other Gelli Street homes

Four headline reads against 31 similar houses on this street, drawn from the latest EPC and Land Registry data.

Floor Area for 18 Gelli Street runs comfortably ahead of the street norm.

EPC Rating

67 (D)

Street avg 64 (D)

On par

Floor Area

102 m²

Street avg 86 m²

Strongly above

CO₂ Emissions

3.6 t/year

Street avg 3.4 t/year

Below

Habitable Rooms

4 rooms

Street avg 4 rooms

On par

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Comparables

Similar properties nearby

A handful of close matches in the same postcode area, ranked by likeness on bedrooms, type and floor area.

£136k

1 Bay Street, Port Tennant

SA1 8LB

£133k

1 George Powell House, Balaclava Street, St Thomas

SA1 8BR

£133k

1 Grenfell Park Road, St Thomas

SA1 8EY

£125k

1 Canaan Row, St Thomas

SA1 8EQ

£124k

1 Ivy Bush Court, St Thomas

SA1 8DQ

£147k

1 Balaclava Street, St Thomas

SA1 8BS

4 bed1 bath

£121k

1 Dupre Road, St Thomas

SA1 8HB

£152k

1 Bay View, St Thomas

SA1 8BB

Area

The neighbourhood at a glance

A condensed read of the local area. Each tile links through to the full breakdown on the Swansea district page.

Full Swansea report

Crime

580/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.

FAQ

Common questions

The questions buyers, sellers and homeowners most often ask about 18 Gelli Street, Port Tennant, Swansea, SA1 8NJ. Each answer is also embedded as structured data for search engines.