Overdene Pontllanfraith, Caerphilly

37 addresses across 1 postcode (NP12), about 270 m long, classed as a local road. USRN 47502786.

  • Sales: 30 recorded sales since 1995; in 2025 the median was £216,000 across 1 sale.
  • Energy: 31 homes have an energy certificate (B: 1, C: 14, D: 12, E: 4).
  • Flood: No postcode centre on the street is in flood zone 2 or 3.
  • Council tax: Most homes around it are in council tax band B; Band D in Caerphilly costs £2,083 a year in 2026-27.
  • Broadband: Gigabit broadband is available to 100% of premises.
  • Transport: The nearest railway station is Hengoed, about 2.2 km (1.4 miles) away in a straight line.
  • Green space: The nearest park or garden, Penllwyn Manor Park, is about 480 m (0.3 miles) away.
  • Air: Background air pollution in 2024 was 8.6 µg/m³ of nitrogen dioxide and 5.7 of PM2.5, within UK legal limits.
  • Height: Its addresses are 136 to 144 m above sea level.
  • Noise: 20 of its 37 addresses are modelled at 55 dB or more from road traffic.
  • Doctors: The nearest GP surgery is Blackwood Medical Group, about 870 m (0.5 miles) away, with 2 practices within 1.6 km (1 mile).
  • People: About 290 people lived in the census areas around it in 2021; 66% of households owned their home and 18% of adults held a degree or other higher qualification.
  • Crime: 48 crimes were recorded within 250 m between September 2025 and August 2026, most often violence and sexual offences.

Sales on this street

Source: HM Land Registry Price Paid Data, sales registered up to 28 August 2026, loaded 28 October 2026. Sales reach the register two weeks to two months after completion, so the last two months are incomplete. Matched by postcode and street name.

Sales by year (standard sales only; repossessions and buy-to-let transfers excluded)
YearSalesMedian priceLowestHighest
20251£216,000£216,000£216,000
20212£119,000£118,000£120,000
20192£113,500£103,500£123,500
20181£139,000£139,000£139,000
20161£112,500£112,500£112,500
20151£72,000£72,000£72,000
20142£75,000£70,000£80,000
20131£81,500£81,500£81,500
20121£107,000£107,000£107,000
20102£62,500£54,000£71,000
20091£80,000£80,000£80,000
20052£101,000£92,000£110,000
Most recent sales (30)
DateAddressTypePriceNotes
28 Mar 202519 NP12 2JSSemi-detached£216,000
29 Jun 202112 NP12 2JSSemi-detached£118,000
28 May 202136 NP12 2JSSemi-detached£120,000
20 Dec 201910 NP12 2JSSemi-detached£123,500
30 May 201910 NP12 2JSSemi-detached£103,500
27 Sep 201818 NP12 2JSSemi-detached£139,000
16 Dec 20162 NP12 2JSSemi-detached£112,500
5 Mar 201512 NP12 2JSSemi-detached£72,000
15 Jul 201413 NP12 2JSSemi-detached£70,000
16 May 201416 NP12 2JSSemi-detached£80,000
4 Oct 201331 NP12 2JSSemi-detached£81,500
18 May 201223 NP12 2JSSemi-detached£107,000
15 Jul 201029 NP12 2JSTerraced£54,000
23 Apr 201020 NP12 2JSSemi-detached£71,000
28 Aug 20092 NP12 2JSSemi-detached£80,000
15 Aug 200512 NP12 2JSSemi-detached£92,000
15 Jul 20057 NP12 2JSSemi-detached£110,000
3 Dec 20044 NP12 2JSTerraced£86,500
12 Aug 200414 NP12 2JSTerraced£82,950
13 Jul 200421 NP12 2JSSemi-detached£92,000
16 Aug 200235 NP12 2JSSemi-detached£36,000
28 Jun 20027 NP12 2JSSemi-detached£45,000
3 May 200218 NP12 2JSSemi-detached£47,500
8 Oct 20011 NP12 2JSSemi-detached£38,500
23 Mar 200110 NP12 2JSSemi-detached£25,000
8 Oct 199916 NP12 2JSSemi-detached£43,000
5 Dec 199723 NP12 2JSSemi-detached£45,000
24 Oct 19971 NP12 2JSSemi-detached£40,000
19 Sep 199721 NP12 2JSSemi-detached£39,950
23 Feb 199615 NP12 2JSSemi-detached£39,500

Energy performance certificates

Source: Energy Performance of Buildings Register (MHCLG), register as at 1 November 2026. Latest certificate per address; certificates last ten years, so the oldest here dates from July 2013 and some homes have none. Address data © Ordnance Survey and Royal Mail, shown for understanding the energy efficiency of buildings only.

31 homes with a current certificate; median floor area 78 m². Most common: House, semi-detached (31). Built: 1950-1966 (27); 1930-1949 (2); 1967-1975 (1). Tenure at assessment: owner-occupied (23); rented (social) (7); rented (private) (1).

Each home's certificates and sales (15 addresses)

Council tax

What each band costs in Caerphilly in 2026-27: Band D £2,083 a year on average, including the police and community council charges.

ABCDEFGHI
£1,389£1,620£1,851£2,083£2,546£3,009£3,471£4,166£4,860

Homes by band in the neighbourhood around this street: most are in band B (46% of about 790 homes).

Sources: Valuation Office Agency, Council Tax: stock of properties, homes at 31 March 2026 (counts rounded to the nearest 10), for the neighbourhood (census area of about 700 homes) around it, not just this street; Welsh Government, council tax levels 2026-27. Bands are charged as fixed shares of Band D; the actual bill depends on the parish and on discounts such as the single-person discount. Check a home's own band with the official council tax band checker.

Planning and heritage

  • Conservation area: no postcode centre in this street's postcodes is in one.
  • Listed buildings on or by this street: none.
  • Article 4 directions, tree preservation orders and green belt: Wales has no national record of these; the council's planning department holds them.

Source: DataMapWales (Welsh Government): conservation areas compiled from the councils, and Cadw's listed buildings. Conservation areas are checked at each postcode's centre; some councils' boundaries in this layer have not been updated for years, so the council's own map is the one to rely on. Listed buildings are counted on or by this street. Planning applications are not here: there is no national open record of them.

Roadworks

Street works permits come from the Department for Transport's Street Manager, which covers England only.

Source: Department for Transport, Street Manager open data, permits and works up to 30 September 2026. It is published once a month, so works arranged or started since then are not shown, and dates are the ones planned unless the works have started or finished. Emergency works are often permitted after they begin.

Flood risk

None of the 38 address points in this street's postcodes is in an area at high, medium or low risk of flooding from rivers, the sea or surface water on Natural Resources Wales's map. Outside those areas the chance is under 0.1% (1 in 1,000) a year.

High: 3.3% (1 in 30) or more chance of flooding a year. Medium: 1% to 3.3%. Low: 0.1% to 1%. The map allows for flood defences. Address points are every property record (UPRN) in the postcode, each counted if it is in an area or within 5 m of one (the maps stop at building walls); a few are not homes, such as garages, business units or caravan pitches. Counts cover whole postcodes, which can include other streets.

Flood zone for planning: no postcode centre is in flood zone 2 or 3. Welsh zones include an allowance for climate change.

Sources: Natural Resources Wales Flood Risk Assessment Wales: rivers, sea and surface water (loaded 30 October 2026), and Flood Map for Planning: rivers and sea (loaded 29 October 2026); address points from OS Open UPRN and the ONS UPRN Directory. Flood zones are checked at each postcode's centre point. These are models of areas, which their publishers say are not suitable for showing whether an individual property is at risk, and they do not cover flooding from sewers or drains. Check an address on Natural Resources Wales's flood risk map.

Contains Natural Resources Wales information © Natural Resources Wales and database right. All rights reserved. Some features of this information are based on digital spatial data licensed from the UK Centre for Ecology & Hydrology © UKCEH. Defra, Met Office and DARD Rivers Agency © Crown copyright. © Cranfield University. © James Hutton Institute.

Height above sea level

The street's 37 addresses are between 136 m and 144 m above sea level (141 m on average); the ground rises about 9 m from the lowest to the highest.

Source: Ordnance Survey, OS Terrain 50, July 2026: the height of the ground on a 50 m grid, read at each address, in metres above Ordnance Datum (mean sea level at Newlyn). It is the lie of the land, not floor or threshold levels, and is accurate to a few metres. Being low-lying is not in itself a flood risk; the flood section above says what the flood maps show.

Broadband

Source: Ofcom Connected Nations, data as at January 2026. Percentages are of premises in each postcode that can get the service, not take-up or speed achieved.

Availability by postcode (% of premises)
PostcodeSuperfast (30 Mbit/s+)Ultrafast (300 Mbit/s+)GigabitBelow 10 Mbit/s
NP12 2JS100%100%100%0%

Getting around

Sources: Department for Transport, NaPTAN (every public transport stop), as at 31 October 2026; Office of Rail and Road, Estimates of station usage 2024–25 (which stations are on the National Rail network, and their journeys: entries and exits in the year to March); OurAirports (public domain, kept by volunteers); car parks and charging points from Overture Maps Foundation, release 2026-10-21.0, which gathers business listings from Meta, Microsoft, Foursquare and others: not an official register, so some will be missing, private or out of date. Distances are straight lines from the middle of the street, not routes, and say nothing about how often anything runs. Stations opened since the end of ORR's year appear when ORR publishes the next one, each December; heritage railways are left out.

NearestDistance
Railway stationsHengoed 129,000 journeys in 2024–252.2 km (1.4 miles)
Ystrad Mynach 222,000 journeys in 2024–253.5 km (2.2 miles)
Pengam 214,000 journeys in 2024–253.6 km (2.2 miles)
Bus stops17 stops within 400 m (0.2 miles), 31 within 800 m (0.5 miles); nearest Overdene Gelligroes50 m
Bus or coach stationBlackwood Bus Station Stand 91.8 km (1.1 miles)
EV charging points2 within 1.6 km (1 mile); nearest Montclaire Avenue Car Park1.3 km (0.8 miles)
Airport with scheduled flightsCardiff International Airport CWL29.9 km (19 miles)

Local services

Sources: NHS Organisation Data Service, as at 31 October 2026: GP practices, community pharmacies and dental practices with an NHS contract, open now, each placed at the centre of its postcode; hospitals are NHS trust and Welsh health board sites named as hospitals, and may not have an emergency department. Police stations and cash machines from Overture Maps Foundation, release 2026-10-21.0, which gathers business listings: not an official register, so some will be missing or out of date. Distances are straight lines from the middle of the street. Nothing here says whether a practice is taking new patients or a dentist new NHS patients.

NearestDistance
GP surgeries2 practices within 1.6 km (1 mile); nearest Blackwood Medical Group870 m (0.5 miles)
Pharmacies1 pharmacies within 1.6 km (1 mile); nearest Pontllanfraith Pharmacy Limited870 m (0.5 miles)
NHS dentists1 practices within 1.6 km (1 mile); nearest Bryntirion Dental Surgery570 m (0.4 miles)
HospitalYsbyty Ystrad Fawr3.5 km (2.2 miles)
Police stationBlackwood Police Station1.2 km (0.7 miles)
Cash machinesTesco Bank ATM1.7 km (1.1 miles)

Parks and green space

Source: Ordnance Survey, OS Open Greenspace, April 2026: public parks and gardens, play spaces, playing fields and allotments, with their entrances. Distances are straight lines from the middle of the street to a site's nearest entrance (or its edge where none is recorded), not walking routes; sizes are the area OS maps for each site. Some sites, such as school playing fields, may not be open to the public.

NearestDistance
Park or garden3 within 800 m (0.5 miles); nearest Penllwyn Manor Park 1.8 ha480 m (0.3 miles)
Largest park within 800 m (0.5 miles)Islwyn Park 5.1 ha550 m (0.3 miles)
Play area2 within 800 m (0.5 miles); nearest Unnamed 490 m²610 m (0.4 miles)
Playing field3 within 800 m (0.5 miles); nearest Unnamed 1.1 ha550 m (0.3 miles)
Allotments3 within 800 m (0.5 miles); nearest Unnamed 2,330 m²180 m

Within 800 m (0.5 miles): 3 parks and gardens, 7.2 hectares in all.

Landmarks

The nearest historic landmark is Fort South of Pen-Llwyn-Fawr, a scheduled monument, 360 m north-west. 11 listed buildings are within 1 km (0.6 miles), 2 of them Grade II*.

Historic places
NameWhat it isFrom the middle of the street
Fort South of Pen-Llwyn-FawrScheduled monument360 m north-west
Gelli-groes MillListed building, Grade II*380 m south
Penllwyn, former manor house now Penllwyn Arms public houseListed building, Grade II*570 m (0.4 miles) north-west
Natural landmarks within 5 km (3.1 miles)
NameWhat it isFrom the middle of the street
Coedcae NewyddWood410 m (0.3 miles) south-east
Coed DuonWood1.8 km (1.1 miles) north
Nant-y-draenog ReservoirLake or reservoir2 km (1.2 miles) south-east
Coed GwernauWood2 km (1.3 miles) south-west
Cwm PhilkinsValley2.1 km (1.3 miles) north-east
Mynydd y GrugHill4.4 km (2.7 miles) south

Sources: Historic England's registers through planning.data.gov.uk (MHCLG), and Cadw through DataMapWales (Welsh Government): World Heritage Sites within 10 km (6.2 miles), battlefields within 5 km (3.1 miles), registered parks and gardens within 3 km (1.9 miles), scheduled monuments within 2 km (1.2 miles), and Grade I and II* listed buildings within 1 km (0.6 miles). Ordnance Survey, OS Open Names, October 2026: named hills, valleys, lakes, woods, wetlands and coast (it has no rivers). Distances are in a straight line to the middle of each site, and being on a register does not mean there is public access.

Air quality

Source: Defra, modelled background air pollution, annual means for 2024, for the 1 km square that holds the middle of the street. These are background levels, away from the kerb: beside a busy road nitrogen dioxide in particular can be several times higher. UK limits are the legal annual limits for England and Wales; the World Health Organization's 2021 guidelines are much stricter, and most towns and cities are above them.

Annual means in µg/m³ (micrograms per cubic metre of air)
PollutantHereUK limitWHO guideline
Nitrogen dioxide (NO2)8.64010
Fine particles (PM2.5)5.7205
Particles (PM10)8.74015

All three are within the UK legal limits; PM2.5 is above the WHO guideline, as in most towns and cities.

Road and rail noise

Source: Welsh Government, Environmental Noise Mapping 2022 (Wales), modelled with Defra's noise model for every road and railway in Wales and published in August 2023, through DataMapWales: Lden, the average sound level over a whole day with extra weight for the evening and night, on a 10 m grid, read at each address. These are models of traffic, not measurements; they leave out aircraft, industry and neighbours, and a room at the back of a house is often much quieter than the front. The World Health Organization's guidelines are 53 dB for road traffic and 54 dB for railways.

Addresses by modelled noise level (Lden, dB)
LevelRoad trafficRailways
55 to 59200
Under 551737

20 of the street's 37 addresses are modelled at 55 dB or more from road traffic, above the WHO guidelines.

Climate, daylight and earthquakes

Monthly temperatures and rainfall, sunrise and sunset through the year, and earthquakes recorded nearby since 1970 are much the same across the area, so they are worked out once for Caerphilly: see them on the Caerphilly page.

Nearest schools

Source: Welsh Government address list of schools in Wales, October 2026 (maintained schools only, placed at their postcode). Distances are straight lines from the middle of the street to the school; catchments and admissions are not shown. Estyn, which inspects Welsh schools, no longer gives grades; its reports describe each school in words.

SchoolPhaseAgesDistanceInspection
Bryn Primary English mediumPrimary3–11780 m (0.5 miles) Estyn reports · My Local School
Penllwyn Primary English mediumPrimary3–111 km (0.6 miles) Estyn reports · My Local School
Pontllanfraith Primary School English mediumPrimary3–111.1 km (0.7 miles) Estyn reports · My Local School
Libanus Primary English mediumPrimary3–111.4 km (0.9 miles) Estyn reports · My Local School

Food hygiene ratings nearby

Source: Food Standards Agency, Food Hygiene Rating Scheme, extract of 1 November 2026. Each rating is shown with the date it was given; a business may have been re-inspected since the extract. Within 500 m (0.3 miles) of the middle of the street.

BusinessTypeDistanceRatingRated
Halfway House NP12 2HTOther catering premises310 m5 Very good30 Sep 2026
Groundwork Caerphilly Retailers - other500 m (0.3 miles)5 Very good26 Mar 2024

Crime within 250 m

Source: data.police.uk street-level crime, September 2025 to August 2026. Police forces move every crime to the nearest of about 760,000 anonymised map points before publishing, so these are crimes near this street, not on it, and a busy point can collect crimes from a wider area. Counts are of records, not convictions.

48 recorded crimes by category
CategoryCrimes
Violence and sexual offences23
Criminal damage and arson6
Vehicle crime6
Other theft4
Anti-social behaviour3
Burglary3
Drugs1
Other crime1
Public order1

Most of these are attached to: On or near Nant-Y-Rhos (13); On or near Old Bridge Court (10); On or near Gelli-Groes Road (8); On or near Marshfield Court (5); On or near Overdene (5).

People and work

Source: ONS Census 2021, taken on 21 March 2021, for the Output Area (a small census area of about 125 households) that this street's postcodes are in: 292 residents in 120 households. The census was taken during a lockdown, so working from home is high and travel to work low compared with now. ONS swaps a few records between neighbouring areas and adds small amounts of noise to counts to protect privacy, so small differences mean little. Industry is not published for areas this small.

Who lives here

Around this streetWales
Median age3843
Children under 1518%17%
Aged 65 and over16%21%

Homes

Around this streetWales
Owned (outright or with a mortgage)66%66%
Owned outright34%38%
Shared ownership3%under 1%
Social rented13%17%
Private rented18%17%

Work and commuting

Around this streetWales
Adults (16 and over) in work62%54%
Unemployment (of those working or looking for work)under 1%6%
Retired (of adults)20%25%
Long-term sick or disabled (of adults)8%6%
Work mainly from home (of those in work)18%26%
Travel to work by car or van75%61%
By train, Underground, metro or tramunder 1%under 1%
By any public transport, including bus3%3%
On foot or by bicycle3%8%
Work within 10 km (6 miles) of home (of those who travel to work)52%60%
Work 30 km (19 miles) or more away10%10%

Education and languages

Around this streetWales
Degree or other higher qualification, Level 4+ (of adults)18%32%
No qualifications23%20%
Apprenticeship as highest qualification6%6%
Main language English or Welsh (aged 3 and over)99%97%
Cannot speak English well or at all0%under 1%

Deprivation

The neighbourhood around this street is in decile 4 of 10 on the Welsh Index of Multiple Deprivation 2025, where 1 is the most deprived tenth of Wales's 1,917 neighbourhoods and 10 the least.

Source: Welsh Index of Multiple Deprivation 2025 (Welsh Government), by LSOA (about 1,500 people), through the ONS Postcode Directory. The index combines income, employment, health, education, crime, housing and living environment; it ranks areas against each other and does not describe any one household. Ranks in England and Wales are worked out separately and cannot be compared.

What has changed

  • Energy certificates New energy certificate: band D, house, semi-detached (lodged 14 October 2026) found 2 November 2026

Everything that has changed on and near this street

Postcodes on this street

Source: ONS Postcode Directory August 2026, ONS UPRN Directory September 2026, OS Open Linked Identifiers September 2026. A postcode can cover more than one street; the share shows how many of its addresses are on this one.

  • NP12 2JS: 37 addresses of 38 in the postcode

Nearby streets

Nant-y-Rhos · Marshfield Court · Gelli-Groes Road · Cwrt Yr Hen Bont · Blackwood Business Park · Gelli-Groes Road · The Bowls · Gerddi Ty Mawr · A472 · Gelligroes Road · Newport Road · Ger Y Felin

All the streets in NP12 and across Caerphilly.

What this page cannot tell you

  • Whether a particular house is at risk of flooding, subsiding or anything else: the flood map is a model of areas and there is no property-level data here.
  • What a home is worth now: sales are historic prices for the homes that happened to sell.
  • How safe the street is: crime points are moved to anonymised locations and many crimes are never reported.
  • Whether you would get a place at a school: distances are straight lines, not catchments.
  • Who lives on the street now: census figures describe the small areas around it in March 2021, during a lockdown.
  • How long a journey takes or how often anything runs: transport distances are straight lines to the nearest stops.
  • Whether a GP practice is taking new patients, or a dentist new NHS patients.
  • How loud a home is inside, or noise from industry, neighbours or smaller airfields: noise figures are models of road, rail and air traffic outside.

How each figure on this page is matched to the street and worked out: methodology.