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

Estimated value

£136,000

  • Since the 2001 sale (£21,000)+548%
  • Against SA1 8NJ's recent median (£127,000)+7%

Newest record on this page: May 2026. Land Registry and EPC registers update monthly, so this page can trail them by 2–3 months.

Learn about this valuation
Property type
Mid terrace
Habitable rooms
4
From EPC
Floor area
88 m²
947 sq ft
Energy rating
D
Score 59
Council tax
Band B
Tenure
Private Rental
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Valuation

About this valuation

How the figure is worked out and what it's based on. If you know this home, you can tell other visitors what you think it's worth.

Our estimate

£136,000

  • Against its 2001 sale (£21,000)+548%
  • Against SA1 8NJ's recent median (£127,000)+7%

Your note and figure are shown publicly on this page.

How the estimate is made

The estimate for 11 Gelli Street is modelled from its 88 m² EPC floor area, its 1 recorded sale and recent sales of comparable homes in SA1 8NJ. It is an automated estimate, not a survey or mortgage valuation: condition, layout and improvements that aren't on record can move the real figure either way.

What it's based on

  • Floor area

    88 m² from the EPC lodged in March 2016

  • Sales of this home

    1 sale recorded, the latest in 2001

  • Recent sales in SA1 8NJ

    5 sales, median £127,000 (2026–2024)

This page or the full report?

DataThis pageFull report
SalesLatest sale shown: May 2026Latest available records, read when you order
ValuationEstimate from the last refreshAnalysed against comparable sales
PlanningNone on this homeFull history, plus nearby schemes
Flood riskNot shownIncluded
Price

Sales history & valuation

Every recorded sale of this home, how its price has moved, and what neighbouring properties have sold for.

11 Gelli Street's modelled value sits at over four times its earliest registered sale price (2001).

Sales timeline

  1. 15 March 2001Most recent

    £21,000

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

Risks

What this page doesn't show

2 potential issues have already been flagged for 11 Gelli Street, Port Tennant, Swansea, SA1 8NJ. The detail, evidence and what to ask about it are in the Risks Report.
  • Signs of HMO activity in the areaIn report
  • Larger development activity nearbyIn report
  • Flood risk from rivers, sea and surface waterIn report
  • Subsidence and ground-stability signalsIn report
  • Refusals, enforcement and big schemes nearbyIn report

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Overview

About 11 Gelli Street

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

11 Gelli Street is a mid-terrace house in Port Tennant, Swansea, Swansea (SA1 8NJ). It has a recorded floor area of 88 m² (around 947 sq ft), construction records dating it to before 1900 and council tax band B. The latest certificate (March 2016) shows a D (score 59), a step below the typical UK home. The recommended improvements would push it to C (score 69). The latest certificate is from March 2016, so improvements made since then won't be reflected.

Untraded for 25 years, with the last transfer in March 2001. Only one transfer is on record with HM Land Registry, suggesting it has stayed in the same hands for a long time. Today's modelled estimate of £136,000 sits 547.6% above the 2001 sale of £21,000. On a £-per-square-foot basis, the last sale (£22/sq ft) was about 78.5% below the postcode norm.

Before you decide

Everything you need to know about 11 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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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.

EPC Expired

This certificate is over 10 years old and is no longer valid.Expired 30 Mar 2026

Current Certificate
Mar 2016

EPC Rating

A
B
C
D
D59
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Very Poor
CO2 Emissions
4.2 t/year
Occupancy
Rented

Certificate validity

Expired on 30 March 2026

New assessment needed to sell or let
Planning

Planning history

Applications and permits filed against 11 Gelli Street, Port Tennant, Swansea, SA1 8NJ, sourced from the PlanIt planning register.

11 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.

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.

11 Gelli Street is notably below the street on price per m².

Price per m²

£239

Street avg £1,273

Strongly below

Floor Area

88 m²

Street avg 86 m²

Above

Habitable Rooms

4 rooms

Street avg 4 rooms

On par

CO₂ Emissions

4.2 t/year

Street avg 3.4 t/year

Below
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.

Nearest stops

  • St Stephens ChurchBus stop93m
  • Fabian Way Park & RideBus stop158m
  • Danygraig CemeteryBus stop195m
  • Hoo StreetBus stop233m

Most reported crime locally

  • Violence & Sexual Offences3,276 reports35%
  • Anti-social Behaviour1,210 reports13%
  • Shoplifting1,135 reports12%
  • Public Order981 reports11%

Go deeper on the local area

A Local Area report breaks down crime, transport links, schools and air quality in depth.

SDL Surveying

Get a survey for this property

Level 3 Building Survey

Victorian-eraMid-Terrace HouseEPC DPre-1919 build

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

From £820 · Includes VAT

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

£147k

1 Balaclava Street, St Thomas

SA1 8BS

4 bed1 bath
£125k

1 Canaan Row, St Thomas

SA1 8EQ

£124k

1 Ivy Bush Court, St Thomas

SA1 8DQ

£152k

1 Bay View, St Thomas

SA1 8BB

£152k

1 Beaumont Crescent, St Thomas

SA1 8DW

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Method

How to read this page

Where every figure above comes from, how current it is and what it can't tell you.
Valuation method in detail
How the estimate is made
The estimate for 11 Gelli Street is modelled from its 88 m² EPC floor area, its 1 recorded sale and recent sales of comparable homes in SA1 8NJ. It is an automated estimate, not a survey or mortgage valuation: condition, layout and improvements that aren't on record can move the real figure either way.
Where sold prices come from
Sold prices are HM Land Registry Price Paid Data, which covers residential sales in England and Wales since 1995. 1 sale is recorded for 11 Gelli Street. Sales normally appear two to three months after completion, so the most recent ones take time to show up anywhere.
Reading the EPC
Energy Performance Certificates rate homes from A (most efficient) to G and last 10 years. The latest one for 11 Gelli Street was lodged in March 2016 at band D and expired in March 2026, so a new one is needed to sell or let. Floor area, heating and insulation details on this page come from it.
Planning records
Planning applications are collected from local authority registers through PlanIt. None is matched to 11 Gelli Street. Councils sometimes file applications under a different address format, and applications on neighbouring land aren't listed here; the report covers both.
Area figures
Crime is police-recorded street-level data over the last 16 months, which places each incident at an approximate point. Schools and stops are measured in a straight line from SA1 8NJ.
Council tax band
11 Gelli Street is in council tax band B. Bands are set by the Valuation Office Agency from historic values (1 April 1991 in England, 1 April 2003 in Wales), not today's price; the amount you pay depends on the council's rate for the band.
FAQ

Common questions

The questions buyers, sellers and homeowners most often ask about 11 Gelli Street, Port Tennant, Swansea, SA1 8NJ. Each answer is also embedded as structured data for search engines.

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