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21 Llewellyn Circle, Mayhill, Swansea, SA1 6SN

Property type
Mid terrace
Bedrooms
3
Bathroom
1
Floor area
74 m²
797 sq ft
Energy rating
C
Score 69
Council tax
Band C
Tenure
Owner Occupied
Overview

About 21 Llewellyn Circle

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

21 Llewellyn Circle is a three-bedroom mid-terrace house in Mayhill, Swansea, Swansea (SA1 6SN). It has a recorded floor area of 74 m² (around 797 sq ft), construction records dating it to 1900-1929 and council tax band C. The latest certificate (January 2025) shows a C (score 69), just inside the C band. When first surveyed in July 2013 the rating was D, the property has climbed 1 band since. Between certificates, wall efficiency went from Very Poor to Good, roof efficiency went from Average to Good and lighting went from Good to Very Good. The recommended improvements would push it to B (score 85).

Today's modelled estimate of £149,000 is 39.3% above the 2023 sale price. On a £-per-square-foot basis, the last sale (£134/sq ft) was about 52.3% above the typical sold price in the postcode. At 74 m² it's 17.2% smaller than the typical home in the postcode (89 m² median across 12 EPCs). Most recent transfer: May 2023 at £107,000.

Specifications

What this property has

Pulled from EPC certificates, claim submissions and our property model. Empty categories are hidden — we only show what's known.

Inside

  • Bedrooms3
  • Bathrooms1
  • StudyYes

Outside

  • DrivewayYes
Before you decide

Everything you need to know about 21 Llewellyn Circle

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.
Current Certificate(1 of 3)
Jan 2025

EPC Rating

A
B
C
C69
D
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Good
CO2 Emissions
2.4 t/year
Occupancy
Owner Occupied

Property Improvements

Changes detected from historical EPC data

Feb 2015from Jul 2013
EPC improved fromD65toE46
Jan 2025from Feb 2015
EPC improved fromE46toC69
Heating Controls
FullThermostat

Heating controls changed

Walls
Very PoorGood

Wall insulation improved

Roof Insulation
UninsulatedInsulated

Roof insulation improved

Low Energy Lighting
56%100%

More low energy lighting 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 21 Llewellyn Circle, Mayhill, Swansea, SA1 6SN, sourced from the PlanIt planning register.

21 Llewellyn Circle has no planning applications on record.

64

But the area is active

64 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.

21 Llewellyn Circle valuation sits well clear of the typical sold price in this postcode.

Current estimate

£149,000

Modelled from EPC, postcode comparables.

See how we calculated this
Last sold (2023)

£107,000

Recorded with HM Land Registry.

Sales timeline

  1. 9 May 2023Most recent

    £107,000

Median price across the last 5 sales in SA1 6SN: £107,500 (2023–2017).

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 co₂ emissions, 21 Llewellyn Circle stands well clear of the street.

Price per m²

£1,446

Street avg £1,023

Strongly above

Floor Area

74 m²

Street avg 99 m²

Strongly below

Habitable Rooms

5 rooms

Street avg 5 rooms

Above

CO₂ Emissions

2.4 t/year

Street avg 5.1 t/year

Strongly above
Before you decide

Everything you need to know about 21 Llewellyn Circle

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.
£165k

1 Bryn Y Clochydd, Townhill

SA1 6AW

3 bed1 bath
£135k

1 Bryn Y Don Road

SA1 6YA

2 bed1 bath
£148k

1 2, Flat 1, St James Crescent

SA1 6DZ

Flat
£151k

1 Cadrawd Road, Mayhill

SA1 6UG

£144k

1 2, Flat 4, Brooklands Terrace

SA1 6BS

Flat
£143k

1 Carig Crescent, Mayhill

SA1 6TQ

£156k

1 2, Flat 1, Brooklands Terrace

SA1 6BS

Flat
£142k

1 2, Flat 5, Brooklands Terrace

SA1 6BS

Flat
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

Leakers Shops — 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 21 Llewellyn Circle, Mayhill, Swansea, SA1 6SN. Each answer is also embedded as structured data for search engines.