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23 Llewellyn Circle, Mayhill, Swansea, SA1 6SN

Estimated value

£202,000

  • Since the 2004 sale (£42,500)+375%
  • Against SA1 6SN's recent median (£130,000)+55%

Newest record on this page: August 2025. Land Registry and EPC registers update monthly, so this page can trail them by 2–3 months.

Learn about this valuation
Property type
Detached
Habitable rooms
8
From EPC
Floor area
238 m²
2562 sq ft
Energy rating
F
Score 23
Council tax
Band C
Tenure
Owner Occupied
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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

£202,000

  • Against its 2004 sale (£42,500)+375%
  • Against SA1 6SN's recent median (£130,000)+55%

Your note and figure are shown publicly on this page.

How the estimate is made

The estimate for 23 Llewellyn Circle is modelled from its 238 m² EPC floor area, its 1 recorded sale and recent sales of comparable homes in SA1 6SN. 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

    238 m² from the EPC lodged in May 2017

  • Sales of this home

    1 sale recorded, the latest in 2004

  • Recent sales in SA1 6SN

    5 sales, median £130,000 (2025–2023)

This page or the full report?

DataThis pageFull report
SalesLatest sale shown: August 2025Latest 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.

23 Llewellyn Circle's modelled value sits at over four times its earliest registered sale price (2004).

Sales timeline

  1. 18 March 2004Most recent

    £42,500

Median price across the last 5 sales in SA1 6SN: £130,000 (2025–2023).

Risks

What this page doesn't show

1 potential issue has already been flagged for 23 Llewellyn Circle, Mayhill, Swansea, SA1 6SN. The detail, evidence and what to ask about it are in the Risks Report.
  • Signs of HMO activity in the areaIn 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 23 Llewellyn Circle

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

23 Llewellyn Circle is a detached house in Mayhill, Swansea, Swansea (SA1 6SN). It has a recorded floor area of 238 m² (around 2562 sq ft), construction records dating it to 1900-1929 and council tax band C. The latest certificate (May 2017) shows an F (score 23), near the bottom of the EPC scale. The recommended improvements would lift it to C (score 73), a 3-band jump.

Held since March 2004 — that's 22 years off the open market, well above the local norm. At 238 m² the property is well over the postcode median (84 m² across 12 EPCs), placing it in the larger end of the local stock. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Today's modelled estimate of £202,000 sits 375.3% above the 2004 sale of £42,500. On a £-per-square-foot basis, the last sale (£17/sq ft) was about 82.1% below the postcode norm.

Before you decide

Everything you need to know about 23 Llewellyn Circle

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

Signs of HMO activity in the area

Pick your report · from £14.99

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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.

23 Llewellyn Circle sits at the bottom of the postcode for energy efficiency — meaningful headroom to improve.

Current Certificate
May 2017

EPC Rating

A
B
C
D
E
F
F23
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Poor
Windows
Poor
CO2 Emissions
21.0 t/year
Occupancy
Owner Occupied

Certificate validity

Valid until 2 May 2027

5 months remaining
Planning

Planning history

Applications and permits filed against 23 Llewellyn Circle, Mayhill, Swansea, SA1 6SN, sourced from the PlanIt planning register.

23 Llewellyn Circle has no planning applications on record.

61

But the area is active

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

On the street

Versus other Llewellyn Circle homes

Four headline reads against 12 similar houses on this street, drawn from the latest EPC and Land Registry data.

On price per m², 23 Llewellyn Circle runs well behind the street norm.

Price per m²

£179

Street avg £1,200

Strongly below

Floor Area

238 m²

Street avg 86 m²

Strongly above

Habitable Rooms

8 rooms

Street avg 5 rooms

Strongly above

CO₂ Emissions

21.0 t/year

Street avg 3.5 t/year

Strongly 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

Leakers Shops — bus stop.

Nearest stops

  • Leakers ShopsBus stop96m
  • Islwyn RoadBus stop101m
  • Leakers ShopsBus stop136m
  • Constitution HillBus stop194m

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-eraDetached HouseEPC FPre-1919 buildExtended multiple times (2+ extensions)

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 £885 · 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.
£210k

1 Brynffordd, Townhill

SA1 6RA

£233k

1 2, Flat 2, St James Crescent

SA1 6DZ

Flat
£164k

1 2, Flat 1, St James Crescent

SA1 6DZ

Flat
£163k

1 2, Flat 1, Brooklands Terrace

SA1 6BS

Flat
£163k

1 Campbell Street

SA1 6XY

£155k

1 Bryn Y Clochydd, Townhill

SA1 6AW

3 bed1 bath
£154k

1 2, Flat 2, Brooklands Terrace

SA1 6BS

Flat
£147k

1 Cadrawd Road, Mayhill

SA1 6UG

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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 23 Llewellyn Circle is modelled from its 238 m² EPC floor area, its 1 recorded sale and recent sales of comparable homes in SA1 6SN. 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 23 Llewellyn Circle. 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 23 Llewellyn Circle was lodged in May 2017 at band F and is valid until May 2027. 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 23 Llewellyn Circle. 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 6SN.
Council tax band
23 Llewellyn Circle is in council tax band C. 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 23 Llewellyn Circle, Mayhill, Swansea, SA1 6SN. Each answer is also embedded as structured data for search engines.

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