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

Property type
Mid terrace
Habitable rooms
4
From EPC
Floor area
102 m²
1098 sq ft
Energy rating
D
Score 67
Council tax
Band B
Tenure
Private Rental
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 27.5% larger than the typical home in the postcode (80 m² median across 37 EPCs).

Before you decide

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

Pick your report · every report is £14.99

One time fee only - money back guarantee

Preview of the full property report

The data behind every report

  • HM Land Registry, source of sold price history
  • Department for Education, source of schools data
  • Police.uk, source of crime statistics
  • Department for Transport, source of stations and transport links
  • Environment Agency, source of flood risk data
  • Department for Environment, Food & Rural Affairs, source of road noise data
  • PlanIt, source of planning application records
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

A
B
C
D
D67
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Very Poor
CO2 Emissions
3.6 t/year
Occupancy
Rented

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

SDL Surveying

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.

53

But the area is active

53 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

£132,000

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 (2025–2021).

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
Before you decide

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

Pick your report · every report is £14.99

One time fee only - money back guarantee

Preview of the full property report

The data behind every report

  • HM Land Registry, source of sold price history
  • Department for Education, source of schools data
  • Police.uk, source of crime statistics
  • Department for Transport, source of stations and transport links
  • Environment Agency, source of flood risk data
  • Department for Environment, Food & Rural Affairs, source of road noise data
  • PlanIt, source of planning application records
Comparables

Similar properties nearby

A handful of close matches in the same postcode area, ranked by likeness on bedrooms, type and floor area.
£131k

1 Grenfell Park Road, St Thomas

SA1 8EY

£127k

1 Ivy Bush Court, St Thomas

SA1 8DQ

£139k

1 George Powell House, Balaclava Street, St Thomas

SA1 8BR

£123k

1 Canaan Row, St Thomas

SA1 8EQ

£143k

1 Bay Street, Port Tennant

SA1 8LB

£120k

1 Dupre Road, St Thomas

SA1 8HB

£148k

1 Balaclava Street, St Thomas

SA1 8BS

4 bed1 bath
£154k

1 Beaumont Crescent, St Thomas

SA1 8DW

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

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.

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.