Postcode district report · August 2026

NP4, Monmouthshire

NP4 is the 1st Hapiest of Monmouthshire's 6 postcode districts on the HPAI Swatch, which compares them with each other on prices, how the market is moving, energy efficiency and transport. NP4 also reaches into Torfaen; these figures are for its homes in Monmouthshire.

Homes sold

in the 12 months to August 2026

Median price

£386,500

+24.7% on the year before

Price per m²

–

median, homes with an EPC

Flats

of homes sold

NP4 on the HPAI Swatch

Each tile ranks NP4 against the other postcode districts of Monmouthshire.

Price per m²No data –

Price change+24.7% 1st of 6

Sales a year26 a year 6th of 6

Sales change+0.0% 1st of 6

Energy efficiencyNo data –

CarbonNo data –

Station nearbyNo data –

Yellow the best in Monmouthshire Green above average Blue below average Purple weakest in Monmouthshire

Yellow is Hapi: the more yellow, the better NP4 compares with the rest of Monmouthshire. These colours compare postcode districts within Monmouthshire; Monmouthshire's own Swatch compares it with areas across England and Wales.

Monmouthshire's postcode districts, Hapiest first

#	Postcode district	Homes sold	Median price	Price change
1	NP4	26	£386,500	+24.7%
2	NP16	222	£314,500	-3.2%
3	NP7	292	£335,000	+3.1%
4	NP15	79	£380,000	+11.1%
5	NP26	264	£295,000	+0.0%
6	NP25	160	£330,000	+8.2%

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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 Monmouthshire 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 Monmouthshire aren't ranked.