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12 Llewellyn Circle, Mayhill, Swansea, SA1 6SN

3 planning records
Property type
Semi-detached
Bedrooms
3
Floor area
94 m²
1009 sq ft
Energy rating
E
Score 49
Council tax
Band C
Tenure
Owner Occupied
Overview

About 12 Llewellyn Circle

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

12 Llewellyn Circle is a three-bedroom semi-detached house in Mayhill, Swansea, Swansea (SA1 6SN). It has a recorded floor area of 94 m² (around 1009 sq ft), construction records dating it to 1900-1929 and council tax band C. The latest certificate (March 2010) shows an E (score 49), well below the UK norm with real room to improve. The recommended improvements would push it to D (score 57). The latest certificate is from March 2010, so improvements made since then won't be reflected.

Held since May 2010 — that's 16 years off the open market, well above the local norm. Across 2000–2010, sale prices on this property compounded at 4.7% per year. Today's modelled estimate of £163,000 sits 73.4% above the 2010 sale of £94,000. It lags the bulk of the postcode on energy efficiency (less efficient than 75% of similar EPCs). 3 planning records sit against the property, 0 approved, 0 refused.

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
Before you decide

Everything you need to know about 12 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

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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.

12 Llewellyn Circle's carbon output runs well above what efficient homes in the postcode produce.

EPC Expired

This certificate is over 10 years old and is no longer valid.Expired 25 Mar 2020

EPC Rating

A
B
C
D
E
E49
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Average
CO2 Emissions
6.2 t/year
Occupancy
Owner Occupied
SDL Surveying

Get a survey for this property

Level 3 Building Survey

Victorian-eraSemi-Detached HouseEPC EPre-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 12 Llewellyn Circle, Mayhill, Swansea, SA1 6SN, sourced from the PlanIt planning register.

Planning history includes recorded demolition works, indicating a major rebuild phase at this address.

3 applications on record at 12 Llewellyn Circle, Mayhill, Swansea, SA1 6SN

1 live now
2decisions3extensions28documents64nearby
Flagged:Demolition
  1. Feb 2026
    ConservatoryOther
    Outcome in report

    Extension: Single storey · Rear of property

    Pre-application enquiry - Proposed removal of existing single storey rear conservatory. Proposed permitted single storey flat roof extension with skylight to replace conservatory.

    Extension
    Documents
    6 docs on file
    Reference
    2026/0202/PRE
    Full record in report
  2. More recent applications — locked
  3. DemolitionDecision
  4. DemolitionDecision

Unlock 12 Llewellyn Circle, Mayhill, Swansea, SA1 6SN's full planning history

You're seeing the shape of it. The report has the substance.

  • Every decision — granted, refused or withdrawn (2 on record)
  • All 3 applications on this property in full, plus 64 notable nearby
  • The 28 documents, officer reports & conditions
  • What the pattern means for extending or converting here
£14.99one-off · instant

One time fee only - money back guarantee

Price

Sales history & valuation

Recorded transactions, our model's current estimate, and a quick read on what neighbouring properties have sold for.

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

Current estimate

£163,000

Modelled from EPC, postcode comparables and a sale-price growth of 4.7% per year over 10 years.

See how we calculated this
Last sold (2010)

£94,000

Growth on file: 4.7% per year over 10 years.

Sales timeline

  1. 27 May 2010Most recent

    £94,000

    +56.7%over 9 years

  2. 16 August 2000

    £60,000

Median price across the last 5 sales in SA1 6SN: £107,000 (2023–2019).

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.

CO₂ Emissions for 12 Llewellyn Circle lags the street by a wide margin.

Price per m²

£1,003

Street avg £1,072

On par

Floor Area

94 m²

Street avg 98 m²

On par

Habitable Rooms

5 rooms

Street avg 5 rooms

Above

CO₂ Emissions

6.2 t/year

Street avg 4.7 t/year

Strongly below
Before you decide

Everything you need to know about 12 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
£161k

1 2, Flat 2, Brooklands Terrace

SA1 6BS

Flat
£159k

1 Campbell Street

SA1 6XY

£156k

1 2, Flat 1, Brooklands Terrace

SA1 6BS

Flat
£151k

1 Cadrawd Road, Mayhill

SA1 6UG

£148k

1 2, Flat 1, St James Crescent

SA1 6DZ

Flat
£144k

1 2, Flat 4, 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 12 Llewellyn Circle, Mayhill, Swansea, SA1 6SN. Each answer is also embedded as structured data for search engines.