42 Allt Yr Yn Road, Newport, NP20 5EB
About 42 Allt Yr Yn Road
42 Allt Yr Yn Road is a four-bedroom semi-detached house in Newport (NP20 5EB). It has a recorded floor area of 130 m² (around 1399 sq ft), construction records dating it to 1950-1966 and council tax band E. The latest certificate (September 2020) shows a D (score 63), on the cusp of jumping into the C band. When first surveyed in July 2009 the rating was F, the property has climbed 2 bands since. Between certificates, window efficiency went from Average to Good, hot-water efficiency went from Average to Good and main heating went from Average to Good. The recommended improvements would lift it to B (score 81), a 2-band jump. The property has underfloor heating on record, all of which lower running costs and tend to lift resale appeal. Records show the property has been extended at some point in its history.
One planning record on file: an extension approved in 2010. Past consents include an extension, meaningful when judging how the property has evolved. At 130 m² it's 23.8% larger than the typical home in the postcode (105 m² median across 19 EPCs). Across 2009–2020, sale prices on this property compounded at 7.2% per year. Today's modelled estimate of £446,000 is 18.9% above the 2020 sale price. On a £-per-square-foot basis, the last sale (£268/sq ft) was about 28.2% above the typical sold price in the postcode. Sold December 2020 for £375,000.
What this property has
Inside
- Bedrooms4
- Bathrooms1
- Open-plan layoutYes
- Dining roomYes
Outside
- Private gardenYes
- ParkingOff road
Building
- Underfloor heatingYes
- Previously extendedYes
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Hot water efficiency improved
Window efficiency improved
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Planning history
1 application on record at 42 Allt Yr Yn Road, Newport, NP20 5EB
- May 2010ExtensionFullOutcome in report
Extension: Single storey
CONSTRUCTION OF SINGLE STOREY EXTENSION AND DETACHED SINGLE STOREY GARAGE TO REAR, LEAN TO ROOF OVER PORCH AND FRONT BAY WINDOW
- Documents
- 8 docs on file
- Reference
- 10/0377
Unlock 42 Allt Yr Yn Road, Newport, NP20 5EB's full planning history
You're seeing the shape of it. The report has the substance.
- Every decision — granted, refused or withdrawn (1 on record)
- All 1 application on this property in full, plus 2 notable nearby
- The 8 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
Sale price has at least doubled since 2009.
£446,000
Modelled from EPC, postcode comparables and a sale-price growth of 7.2% per year over 11 years.
£375,000
Growth on file: 7.2% per year over 11 years.
Sales timeline
14 December 2020Most recent
£375,000
+21.0%over 1 year27 June 2019
£310,000
+79.2%over 9 years10 November 2009
£173,000
Median price across the last 5 sales in NP20 5EB: £334,000 (2025–2021).
Nearby sales in NP20 5EB
Versus other Allt Yr Yn Road homes
Floor Area for 42 Allt Yr Yn Road runs comfortably ahead of the street norm.
Price per m²
£2,885
Street avg £2,633
Floor Area
130 m²
Street avg 110 m²
Habitable Rooms
6 rooms
Street avg 5 rooms
CO₂ Emissions
5.2 t/year
Street avg 4.9 t/year
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The neighbourhood at a glance
Crime
6/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Allt-yr-yn Close — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







