Model valuation£417,0008 Busby Close
Local market context
12 Llewellyn Circle, Mayhill, Swansea, SA1 6SN
3 planning records
Estimated value
£143,000
- Since the 2010 sale (£94,000)+52%
- Against SA1 6SN's recent median (£130,000)+10%
Newest record on this page: April 2026. Land Registry and EPC registers update monthly, so this page can trail them by 2–3 months.
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
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
£143,000
- Against its 2010 sale (£94,000)+52%
- Against SA1 6SN's recent median (£130,000)+10%
Your note and figure are shown publicly on this page.
How the estimate is made
The estimate for 12 Llewellyn Circle is modelled from its 94 m² EPC floor area, its 2 recorded sales 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
94 m² from the EPC lodged in March 2010
Sales of this home
2 sales recorded, the latest in 2010
Recent sales in SA1 6SN
5 sales, median £130,000 (2025–2023)
This page or the full report?
| Data | This page | Full report |
|---|---|---|
| Sales | Latest sale shown: August 2025 | Latest available records, read when you order |
| Valuation | Estimate from the last refresh | Analysed against comparable sales |
| Planning | 1 of 3 applications | Full history, plus nearby schemes |
| Flood risk | Not shown | Included |
Sales history & valuation
Every recorded sale of this home, how its price has moved, and what neighbouring properties have sold for.
12 Llewellyn Circle valuation sits well clear of the typical sold price in this postcode.
Sales timeline
27 May 2010Most recent
£94,000
+56.7%over 9 years16 August 2000
£60,000
Median price across the last 5 sales in SA1 6SN: £130,000 (2025–2023).
Nearby sales in SA1 6SN
21 Llewellyn Circle, Mayhill, Swansea, SA1 6SN
Sold Aug 2025
£131,00018 Llewellyn Circle, Mayhill, Swansea, SA1 6SN
Sold Jul 2023
£130,00011 Llewellyn Circle, Mayhill, Swansea, SA1 6SN
Sold Jul 2023
£135,00014 Llewellyn Circle, Mayhill, Swansea, SA1 6SN
Sold Mar 2023
£100,00017a, Llewellyn Circle, Mayhill, Swansea, SA1 6SN
Sold Jun 2019
£95,000
What this page doesn't show
1 potential issue has already been flagged for 12 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
One time fee only - money back guarantee
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 £143,000 sits 52.1% 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.
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 area
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The data behind every report
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
Current Certificate
Mar 2010EPC 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
Certificate validity
Expired on 25 March 2020
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 now2decisions3extensions28documents61nearby
Flagged:Demolition
- Feb 2026ConservatoryOtherOutcome 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
- More recent applications — locked
- DemolitionApr 2026Decision
- DemolitionMar 2026Decision
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 61 notable nearby
- The 28 documents, officer reports & conditions
- What the pattern means for extending or converting here
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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 £1,108
Floor Area
94 m²
Street avg 98 m²
Habitable Rooms
5 rooms
Street avg 5 rooms
CO₂ Emissions
6.2 t/year
Street avg 4.7 t/year
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.
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.
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
Similar properties nearby
A handful of close matches in the same postcode area, ranked by likeness on bedrooms, type and floor area.
£155k
1 Bryn Y Clochydd, Townhill
SA1 6AW
3 bed1 bath
£130k
1 Bryn Y Don Road
SA1 6YA
2 bed1 bath
£143k
1 2, Flat 4, Brooklands Terrace
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£142k
1 2, Flat 5, Brooklands Terrace
SA1 6BS
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£147k
1 Cadrawd Road, Mayhill
SA1 6UG
£139k
1 2, Flat 8, Brooklands Terrace
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£138k
1 Baptist Well Place
SA1 6FD
£136k
1 2, Flat 6, St James Crescent
SA1 6DZ
Flat
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Where every figure above comes from, how current it is and what it can't tell you.
- How the estimate is made
- The estimate for 12 Llewellyn Circle is modelled from its 94 m² EPC floor area, its 2 recorded sales 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. 2 sales are recorded for 12 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 12 Llewellyn Circle was lodged in March 2010 at band E and expired in March 2020, 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. 3 applications are matched to 12 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
- 12 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.
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.
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- Every home in SA1 6SNSold prices, values and energy ratings for the postcode
- SA 1 property marketPrices, postcodes, schools and transport across the district
- 12 Llewellyn Circle, Mayhill, Swansea valuationHow the estimate is built and what moves it
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