Postcode district report · August 2026

NP23, Blaenau Gwent

NP23 is the 1st Hapiest of Blaenau Gwent's 3 postcode districts on the HPAI Swatch, which compares them with each other on prices, how the market is moving, energy efficiency and transport.

Homes sold
278
in the 12 months to August 2026
Median price
£149,975
+2.7% on the year before
Price per m²
£1,696
median, homes with an EPC
Flats
2%
of homes sold

NP23 on the HPAI Swatch

Each tile ranks NP23 against the other postcode districts of Blaenau Gwent.

Price per m²£1,696/m² 1st of 3
Price change+2.7% 2nd of 3
Sales a year278 a year 1st of 3
Sales change+0.6% 1st of 3
Energy efficiency67 EPC score 1st of 3
Carbon4.0 t CO₂ a home 1st of 3
Station nearby0.9 km 1st of 3
Yellow the best in Blaenau Gwent Green above average Blue below average Purple weakest in Blaenau Gwent

Yellow is Hapi: the more yellow, the better NP23 compares with the rest of Blaenau Gwent. These colours compare postcode districts within Blaenau Gwent; Blaenau Gwent's own Swatch compares it with areas across England and Wales.

Blaenau Gwent's postcode districts, Hapiest first

#Postcode districtSwatchHomes soldMedian pricePrice change
1 NP23 278£149,975 +2.7%
2 NP13 161£130,000 +4.0%
2 NP22 111£135,000 -6.9%

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About these figures

Price per m²
Median price per square metre of homes sold in the last 12 months (homes with an EPC).
Price change
Median price in the last 12 months against the 12 months before.
Sales a year
Open-market sales in the last 12 months. More sales means a deeper, easier market.
Sales change
Sales in the 12 months to three months ago against the year before. The newest months are left out: Land Registry registers sales late.
Energy efficiency
Average EPC energy efficiency score of homes sold (higher is more efficient).
Carbon
Average carbon emissions of homes sold, tonnes a year. Lower is better.
Station nearby
Median distance from homes sold to the nearest railway station. Closer is better.

Open-market sales from HM Land Registry Price Paid Data in the 12 months to August 2026 (homes in Blaenau Gwent only); price per m², energy and carbon from the homes sold that have an Energy Performance Certificate. Postcode districts with fewer than 20 sales a year in Blaenau Gwent aren't ranked.