Which postcode district in Carmarthenshire has the highest house price change, year on year?

SA31, at +3%, over the 12 months to Dec 2025.

What is the median house price change, year on year across Carmarthenshire?

-1.3% across the 11 postcode districts ranked. 2 of the 13 postcode districts are not ranked: 2 with no published figure.

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Postcode districts within Carmarthenshire · Sales

House price change, year on year: postcode districts in Carmarthenshire ranked

Where are prices rising fastest, and falling? Every postcode district in Carmarthenshire on its 12-month house price change, year on year, 12 months to Dec 2025; ties share a rank, and the sample sits beside every value.

Postcode districts ranked

11 of 13

Median

-1.3%

Highest

SA31 · +3%

Lowest

SA34 · -7.4%

2 of the 13 postcode districts are not ranked: 2 with no published figure.

House price change, year on year, 12 months to Dec 2025

House price change, year on year: postcode districts in Carmarthenshire ranked. Sample and confidence tier beside every value; ties share a rank.
#	Area	House price change, year on year	Sample	Tier	Change
1	SA31	+3%	—	measured	—
2	SA18	+2.6%	—	measured	—
3	SA16	+1.5%	—	measured	—
4	SA14	-0.6%	—	measured	—
5	SA15	-0.9%	—	measured	—
6	SA17	-1.3%	—	measured	—
7	SA33	-1.7%	—	measured	—
8	SA19	-2.3%	—	measured	—
9	SA38	-3.4%	—	measured	—
10	SA32	-5%	—	measured	—
11	SA34	-7.4%	—	measured	—

How this table is built

The published repeat-sales house price index at each place's last settled month, year on year (marts_facts.area_facts.hpi_yoy_pct). Mix-free: the same homes over time. A place on the national series by substitution is not ranked.
Only a place with its own index is ranked.
measured: a sample of at least three times the floor; indicative: at least the floor.
Ties share a rank and order by sample.
Twelve months for every place; no monthly point is ranked.
No monthly point is ranked: a postcode district records a handful of sales a month, and a month-on-month change there is noise.

Questions

Which postcode district in Carmarthenshire has the highest house price change, year on year?: SA31, at +3%, over the 12 months to Dec 2025.
Which has the lowest?: SA34, at -7.4%.
What is the median house price change, year on year across Carmarthenshire?: -1.3% across the 11 postcode districts ranked. 2 of the 13 postcode districts are not ranked: 2 with no published figure.