Postcode district report · August 2026

NP11, Caerphilly

NP11 is the 2nd Hapiest of Caerphilly's 8 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
350
in the 12 months to August 2026
Median price
£170,000
+0.0% on the year before
Price per m²
£2,850
median, homes with an EPC
Flats
1%
of homes sold

NP11 on the HPAI Swatch

Each tile ranks NP11 against the other postcode districts of Caerphilly.

Price per m²£2,850/m² 2nd of 6
Price change+0.0% 6th of 8
Sales a year350 a year 2nd of 8
Sales change-7.0% 3rd of 8
Energy efficiency69 EPC score 2nd of 6
Carbon3.7 t CO₂ a home 3rd of 6
Station nearby0.4 km 3rd of 6
Yellow the best in Caerphilly Green above average Blue below average Purple weakest in Caerphilly

Yellow is Hapi: the more yellow, the better NP11 compares with the rest of Caerphilly. These colours compare postcode districts within Caerphilly; Caerphilly's own Swatch compares it with areas across England and Wales.

Caerphilly's postcode districts, Hapiest first

#Postcode districtSwatchHomes soldMedian pricePrice change
1 CF83 595£228,000 +4.8%
2 NP11 350£170,000 +0.0%
3 CF46 53£210,000 +10.5%
4 NP12 300£205,000 +5.4%
5 CF82 221£200,000 +1.3%
6 CF81 119£150,000 +5.6%
7 NP24 34£107,500 -2.3%
8 NP22 34£122,500 -6.8%

Estate agents: the local partner spot is open in NP11. Find out more

Thinking of buying or selling in NP11?
Get an evidence-based valuation of any home in a minute.
Value a home in NP11

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 Caerphilly 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 Caerphilly aren't ranked.