Skip to content
UK Property Looker

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

Property type
Mid terrace
Habitable rooms
3
From EPC
Floor area
81 m²
872 sq ft
Energy rating
C
Score 79
Council tax
Band B
Tenure
Owner Occupied
Get directions (opens in a new tab)
Overview

About 10 Gelli Street

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

10 Gelli Street is a mid-terrace house in Port Tennant, Swansea, Swansea (SA1 8NJ). It has a recorded floor area of 81 m² (around 872 sq ft), construction records dating it to 1900-1929 and council tax band B. The latest certificate (May 2026) shows a C (score 79), near the top of the C band. When first surveyed in January 2009 the rating was E, the property has climbed 2 bands since. Between certificates, wall efficiency went from Very Poor to Poor, roof efficiency went from Very Poor to Very Good and window efficiency went from Very Poor to Good. The recommended improvements would push it to B (score 81). This certificate was lodged in the last six months, so the rating reflects current condition.

Its energy rating outperforms most of the postcode (better than 76% of similar EPCs).

Before you decide

Everything you need to know about 10 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 · from £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.

The EPC has just been inspected, so the rating reflects current condition.

Current Certificate(1 of 3)
May 2026

EPC Rating

A
B
C
C79
D
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Good
CO2 Emissions
1.7 t/year
Occupancy
Owner Occupied

Certificate validity

Valid until 16 May 2036

9 years remaining

Property Improvements

Changes detected from historical EPC data

Jul 2018from Jan 2009
EPC improved fromE51toD68
Windows
SingleFull Double

Single glazing replaced with double or better glazing

Roof Insulation
UninsulatedWell Insulated

Loft insulation installed or upgraded to 250mm+

Low Energy Lighting
22%75%

More low energy lighting installed

May 2026from Jul 2018
EPC improved fromD68toC79
Windows
Full DoubleHigh Performance

High performance glazing installed

Walls
Very PoorPoor

Wall insulation improved

Low Energy Lighting
75%100%

More low energy lighting installed

Ventilation
NaturalExtract

Mechanical ventilation installed

Renewable Energy
NoneSolar PV

Solar PV panels (25 kWp) installed

SDL Surveying

Get a survey for this property

Level 3 Building Survey

Victorian-eraMid-Terrace HouseEPC CPre-1919 build

Because the property was built before 1919, we believe a Level 3 building survey should be considered.

From £820 · Includes VAT

Planning

Planning history

Applications and permits filed against 10 Gelli Street, Port Tennant, Swansea, SA1 8NJ, sourced from the PlanIt planning register.

10 Gelli Street has no planning applications on record.

47

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.

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

Current estimate

£133,000

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).

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.

10 Gelli Street outperforms the street on epc rating by a wide margin.

EPC Rating

79 (C)

Street avg 64 (D)

Strongly above

Floor Area

81 m²

Street avg 86 m²

On par

CO₂ Emissions

1.7 t/year

Street avg 3.5 t/year

Strongly above

Habitable Rooms

3 rooms

Street avg 4 rooms

Strongly below
Before you decide

Everything you need to know about 10 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 · from £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.
£133k

1 George Powell House, Balaclava Street, St Thomas

SA1 8BR

£133k

1 Grenfell Park Road, St Thomas

SA1 8EY

£136k

1 Bay Street, Port Tennant

SA1 8LB

£125k

1 Canaan Row, St Thomas

SA1 8EQ

£124k

1 Ivy Bush Court, St Thomas

SA1 8DQ

£121k

1 Dupre Road, St Thomas

SA1 8HB

£147k

1 Balaclava Street, St Thomas

SA1 8BS

4 bed1 bath
£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 10 Gelli Street, Port Tennant, Swansea, SA1 8NJ. Each answer is also embedded as structured data for search engines.