Model valuation£417,0008 Busby Close
Local market context
20 Avondale Gardens, Cardiff, CF11 7DY
EPC B3 sales on record2 planning records
Estimated value
£318,000
- Since the 2018 sale (£225,000)+41%
- Against CF11 7DY's recent median (£280,150)+14%
Newest record on this page: August 2025. Land Registry and EPC registers update monthly, so this page can trail them by 2–3 months.
Property type
Semi-detached
Bedrooms
3
Bathrooms
2
Floor area
112 m²
1206 sq ft
Energy rating
B
Score 90
Council tax
Band D
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
£318,000
- Against its 2018 sale (£225,000)+41%
- Against CF11 7DY's recent median (£280,150)+14%
Your note and figure are shown publicly on this page.
How the estimate is made
The estimate for 20 Avondale Gardens is modelled from its 112 m² EPC floor area, its 3 recorded sales and recent sales of comparable homes in CF11 7DY. 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
112 m² from the EPC lodged in August 2022
Sales of this home
3 sales recorded, the latest in 2018
Recent sales in CF11 7DY
5 sales, median £280,150 (2025–2022)
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 2 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.
Sale price has at least doubled since 2002.
Sales timeline
20 September 2018Most recent
£225,000
+75.8%over 14 years24 May 2004
£128,000
+29.3%over 1 year6 June 2002
£99,000
Median price across the last 5 sales in CF11 7DY: £280,150 (2025–2022).
Nearby sales in CF11 7DY
What this page doesn't show
1 potential issue has already been flagged for 20 Avondale Gardens, Cardiff, CF11 7DY. 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 20 Avondale Gardens
A plain-English summary derived from public records, EPC certificates, sold prices and local data.
20 Avondale Gardens is a three-bedroom semi-detached house in Cardiff (CF11 7DY). It has a recorded floor area of 112 m² (around 1206 sq ft), construction records dating it to 1983-1990 and council tax band D. The latest certificate (August 2022) returns a high B (score 90), putting the home a stone's throw from an A rating. When first surveyed in June 2016 the rating was C, the property has climbed 1 band since. Between certificates, window efficiency went from Average to Good, hot-water efficiency went from Good to Very Good and lighting went from Very Poor to Very Good. Records show the property has been extended at some point in its history.
At 112 m² the property is well over the postcode median (77 m² across 26 EPCs), placing it in the larger end of the local stock. On energy efficiency it sits in the top 10% of properties in this postcode. 2 planning records sit against the property, 1 approved, 1 refused. Past consents include an extension, meaningful when judging how the property has evolved. Across 2002–2018, sale prices on this property compounded at 5.2% per year. Today's modelled estimate of £318,000 is 41.3% above the 2018 sale price. Last sale on file: £225,000 in September 2018.
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
- Bathrooms2
- Open-plan layoutYes
- EnsuiteYes
Outside
- Private gardenYes
Building
- Previously extendedYes
Before you decide
Everything you need to know about 20 Avondale Gardens
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.
20 Avondale Gardens ranks among the most efficient homes in the postcode for energy use.
Current Certificate(1 of 2)
Aug 2022
EPC Rating
A
B
B90
C
D
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Very Good
Windows
Good
CO2 Emissions
0.9 t/year
Occupancy
Owner Occupied
Certificate validity
Valid until 8 August 2032
Property Improvements
Changes detected from historical EPC data
Aug 2022from Jun 2016
EPC improved fromC71toB90
Hot Water
Main SystemSolar
Hot water system upgraded
Windows
AverageGood
Window efficiency improved
Roof Insulation
InsulatedWell Insulated
Loft insulation upgraded to recommended levels
Low Energy Lighting
0%92%
More low energy lighting installed
Renewable Energy
NoneSolar PV + Solar HW
Solar PV panels (25 kWp) and Solar water heating installed
Planning history
Applications and permits filed against 20 Avondale Gardens, Cardiff, CF11 7DY, sourced from the PlanIt planning register.
20 Avondale Gardens has an approved single-storey side and rear extension on the planning record.
2 applications on record at 20 Avondale Gardens, Cardiff, CF11 7DY
2decisions2extensions19documents8nearby
- Nov 2014ExtensionFullOutcome in report
Extension: Side of property
PROPOSED GROUND FLOOR SIDE EXTENSION TO FORM UTILITY ROOM AND PROPOSED 2 STOREY SIDE EXTENSION TO FORM FAMILY ROOM AND MASTER BEDROOM WITH ENSUITE BATHROOM TO REAR OF PROPERTY
- Documents
- 8 docs on file
- Reference
- 14/01297/DCH
- More recent applications — locked
- ExtensionApr 2015Decision
Unlock 20 Avondale Gardens, Cardiff, CF11 7DY'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 2 applications on this property in full, plus 8 notable nearby
- The 19 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Versus other Avondale Gardens homes
Four headline reads against 26 similar houses on this street, drawn from the latest EPC and Land Registry data.
20 Avondale Gardens outperforms the street on epc rating by a wide margin.
Price per m²
£2,009
Street avg £2,698
Floor Area
112 m²
Street avg 77 m²
Habitable Rooms
5 rooms
Street avg 4 rooms
CO₂ Emissions
0.9 t/year
Street avg 2.8 t/year
The neighbourhood at a glance
A condensed read of the local area. Each tile links through to the full breakdown on the Cardiff district page.
Crime
362/mo
Steady year-on-year across the wider district.
Nearest stop
0.0 km
Avondale Gardens — bus stop.
Nearest stops
- Avondale GardensBus stop42m
- Horle CloseBus stop164m
- Avondale RoadBus stop217m
- Channel View Waterbus StopFerry terminal220m
Most reported crime locally
- Violence & Sexual Offences1,545 reports28%
- Vehicle Crime640 reports12%
- Anti-social Behaviour624 reports11%
- Public Order547 reports10%
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.
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Late 20th centurySemi-Detached HouseEPC B
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Similar properties nearby
A handful of close matches in the same postcode area, ranked by likeness on bedrooms, type and floor area.
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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 20 Avondale Gardens is modelled from its 112 m² EPC floor area, its 3 recorded sales and recent sales of comparable homes in CF11 7DY. 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. 3 sales are recorded for 20 Avondale Gardens. 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 20 Avondale Gardens was lodged in August 2022 at band B and is valid until August 2032. 2 certificates are on record, which shows how the home has changed.
- Planning records
- Planning applications are collected from local authority registers through PlanIt. 2 applications are matched to 20 Avondale Gardens. 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 15 months, which places each incident at an approximate point. Schools and stops are measured in a straight line from CF11 7DY.
- Council tax band
- 20 Avondale Gardens is in council tax band D. 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 20 Avondale Gardens, Cardiff, CF11 7DY. Each answer is also embedded as structured data for search engines.
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Keep exploring
- Every home in CF11 7DYSold prices, values and energy ratings for the postcode
- CF 11 property marketPrices, postcodes, schools and transport across the district
- 20 Avondale Gardens, Cardiff valuationHow the estimate is built and what moves it
- UK house price mapExplore prices by district, year by year
- Report on another addressLook up any home in England and Wales