NP18 vs NP19: house prices per square metre compared
NP18 (Caerleon) has a median of £3,150 per m² against £2,410 in NP19 (St Julians). NP18 is the more expensive of the two: NP19 is 23.5% cheaper per m². The figures come from 142 and 590 matched sales in the last 12 months of HM Land Registry data.
£325,000, the median sale price in NP18, buys about 103 m² there and about 135 m² in NP19, a difference of 32 m² at each district’s own median. Over the 10 years to Q4 2025 in NP18 and Q1 2026 in NP19, NP19 moved +5.9% a year against NP18 at +4.8% a year, before inflation.
Sales in the last 12 months.
| Measure | NP18High confidence Caerleon, Newport £3,150median per m² | NP19High confidence St Julians, Newport £2,410median per m² | Difference |
|---|---|---|---|
| Median price per m² | £3,150 | £2,410 | −23.5% |
| Median sale price | £325,000 | £200,000 | −38.5% |
| Middle 60% of salesp20 to p80 | £2,630–£3,660 | £1,960–£2,970 | |
| Sales (last 12 months) | 213 | 617 | +404 |
| With a matched floor areaThe denominator behind each median per unit area | 142 | 590 | +448 |
| Mean floor area (matched sales) | 110 m² | 89 m² | −19.3% |
| Annual change over 9.8 years | +4.8% a year | +5.9% a year | +1.1 pts |
| New-build premium | n/a | +32.0% | n/a |
| By property typeMedian price per m² for each property type sold in the last 12 months. | |||
| Detached | £3,360n = 70 | £3,080n = 61 | −8.3% |
| Semi-detached | £3,000n = 42 | £2,710n = 195 | −9.7% |
| Terraced | no sales | £2,090n = 290 | n/a |
| Flat | no sales | £2,430n = 44 | n/a |
| Difference: NP18 minus NP19. | |||
| All NP18 sold prices | All NP19 sold prices |
Each trend line is that district’s own quarterly median price per square metre, scaled to its own range: compare directions, not heights. Gaps are quarters with too few matched sales to publish a median.
Frequently asked questions
Why compare NP18 and NP19 on price per square metre rather than price?
A raw sale price mostly reflects how big homes are; price per square metre corrects for size, so NP18 and NP19 can be compared on what a buyer actually gets for the money. Both figures here are medians of sold price divided by EPC floor area, from HM Land Registry sales, computed the same way for both areas.
Why do NP18 and NP19 show different numbers of sales?
The two districts are different sizes and trade at different rates, and each figure is computed over the matched sales its own area produced in its stated window. The matched-sale count is printed beside each median because it is that median's own denominator.
Compare other areas
Or browse the league tables for the most expensive and best value districts, every comparison page, or the free dataset behind these figures.
Contains HM Land Registry data © Crown copyright and database right 2026 · Licensed under the Open Government Licence v3.0 · Floor areas from the Energy Performance of Buildings Register · how these figures are made