| Postcode | NP20 4JG | 
|---|---|
| Post Town | Newport | 
| Nearest station | Newport (South Wales) (1 km) | 
| Bus stops | St John The Baptist (NW) St John The Baptist (SE) Woodville Road (NW) Woodville Road (E) Coed Melyn Park (NW) West Park Road (NE) | 
| Roads in this postcode | |
| Number of UPRNs | 21 View | 
| Known addresses | 3 Penllyn Avenue, Newport 7 Penllyn Avenue, Newport 9 Penllyn Avenue, Newport 11 Penllyn Avenue, Newport 13 Penllyn Avenue, Newport 17 Penllyn Avenue, Newport 19 Penllyn Avenue, Newport 21 Penllyn Avenue, Newport 23 Penllyn Avenue, Newport 25 Penllyn Avenue, Newport 27 Penllyn Avenue, Newport 29 Penllyn Avenue, Newport 31 Penllyn Avenue, Newport 37 Penllyn Avenue, Newport | 
| Main property type | Terraced | 
| Businesses | 
                        No businesses found
                     | 
| Latitude | 51.584506 | |
|---|---|---|
| Longitude | -3.014543 | |
| Easting | 329804 | |
| Northing | 187782 | |
| Grid reference | ST298877 | |
| UTM reference | 30U 498992 5714827 | |
| what3words | ruby.dent.hope | |
| FixPhrase | cringing luridness stuffy unkind | |
| Plus code | 9C3RHXMP+R5 | |
| Altitude | 77 metres (254 feet) | |
| Sunrise (today) | 7:05 | |
| Sunset (today) | 16:48 | |
| Distance away | ||
| Distance to sea | 4.8 KMs (3 miles) | 
| Parish | Allt-yr-yn | W04000808 | 
|---|---|---|
| Ward | Allt-yr-yn | W05001627 | 
| Unitary Authority | Newport | W06000022 | 
| County | Gwent | W11000003 | 
| Constituency (2024) | Newport West and Islwyn | W07000105 | 
| MP | Ruth Jones | Labour | 
| Police force | Gwent | |
| Water company | Dwr Cymru Welsh Water | |
| NUTS/ITL 3 | Monmouthshire and Newport | |
| NUTS/ITL 2 | South East Wales | |
| NUTS/ITL 1 | Wales | |
| Country | Wales | W92000004 | 
| Date introduced | June 1999 | 
|---|---|
| Last updated | September 2025 | 
| User type | Small (addresses receive less than 25 items of mail per day) | 
| Quality | Within the building of the matched address closest to the postcode mean | 
| Population (2011) | 45 | |
|---|---|---|
| Households (2011) | 20 | |
| Index of Multiple Deprivation (2019) | Most deprivedLeast deprived | |
| Average household income (2020) | Lowest (£22,200)
                        Highest (£108,100)
                       | |
| Rural/urban (2021) | Urban: Nearer to a major town or city | |
| Rural/urban (2011) | Urban city and town | |
| Built up area (2024) | Newport (Newport) | W45001174 | 
| Census output area (2021) | W00008329 | |
| Census output area (2011) | 4A2 | |
| Lower layer super output area (2021) | Newport 014A | W01001605 | 
| Lower layer super output area (2011) | Newport 014A | W01001605 | 
| Middle layer super output area (2021) | Stow Hill | W02000360 | 
| Middle layer super output area (2011) | Stow Hill | W02000360 | 
| Travel to work area | Newport | K01000013 | 
| Average property price in Newport | £221,300 | 
|---|---|
| Annual change | 2.7% | 
| Address | Type | Date | Price | 
|---|---|---|---|
| 37 Penllyn Avenue, Newport | Terraced (freehold) | Jul 2025 | £180,000 | 
| 3 Penllyn Avenue, Newport | Terraced (freehold) | May 2025 | £236,000 | 
| Terraced (freehold) | Jan 2021 | £190,000 | |
| Terraced (freehold) | Jul 2016 | £164,000 | |
| Terraced (freehold) | Sep 2015 | £110,000 | |
| Terraced (freehold) | May 2012 | £97,000 | |
| 21 Penllyn Avenue, Newport | Terraced (freehold) | Nov 2023 | £264,000 | 
| Terraced (freehold) | Feb 2022 | £205,000 | |
| Terraced (freehold) | Jul 1999 | £60,000 | |
| 29 Penllyn Avenue, Newport | Terraced (freehold) | Jul 2021 | £199,950 | 
| Terraced (freehold) | Jun 2018 | £172,500 | |
| Terraced (freehold) | Oct 1996 | £48,000 | |
| 7 Penllyn Avenue, Newport | Terraced (freehold) | Dec 2019 | £153,000 | 
| Terraced (freehold) | Sep 1996 | £48,000 | |
| 11 Penllyn Avenue, Newport | Terraced (freehold) | Oct 2018 | £168,500 | 
| Terraced (freehold) | Jul 2000 | £53,000 | |
| 23 Penllyn Avenue, Newport | Semi-detached (freehold) | Jun 2017 | £160,000 | 
| Semi-detached (freehold) | Apr 2009 | £120,000 | |
| 13 Penllyn Avenue, Newport | Terraced (freehold) | Dec 2016 | £147,000 | 
| 27 Penllyn Avenue, Newport | Terraced (freehold) | Mar 2016 | £151,500 | 
| Terraced (freehold) | Jun 2007 | £165,000 | |
| Terraced (freehold) | Aug 1996 | £46,000 | |
| 9 Penllyn Avenue, Newport | Terraced (freehold) | Sep 2013 | £136,000 | 
| Terraced (freehold) | Oct 2005 | £141,000 | |
| Terraced (freehold) | Oct 2000 | £53,000 |