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SA17

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New builds in SA17: what they really sell for.

3 new-build homes sold in SA17 in the last 12 months, 3% of all sales. New detached homes sold for a median £298,995, 17.3% more than existing ones.

Kidwelly, covering Glyn, Kidwelly and St Ishmael, Llangyndeyrn, Pembrey, Trimsaran, Llandyfaelog, Pembrey and Burry Port Town, St. Ishmael.

New homes sold

3

3% of sales, last 12 months

New-build premium

+17.3%

Detached homes

Resold, vs market

+27.4%

Market +27.7%

Energy bills

~£620/yr

0% have solar

Developments

Where new homes have sold

New streets with three or more new-build sales in the last two years. Price per m² uses floor areas from each home's energy certificate.

Ffordd Brynderi, CarwaySA17 4BD · detached, semi-detached, terraced · 19 sold · latest Nov 2025
£158k–£370k£2,638/m²
Ffordd Y Felen, CarwaySA17 4BB · detached, semi-detached, terraced · 20 sold · latest Aug 2025
£150k–£394k£2,385/m²

The premium

New against existing homes

Median sold prices over the last two years. New homes are often a different size, so this is a guide rather than a like-for-like comparison.

Detached

+17.3%

New £299k · existing £255k

26 new-build sales

Terraced

+20.7%

New £175k · existing £145k

11 new-build sales

Resale

Do new builds in SA17 hold their value?

Bought new, resold

+27.4%

Local market, same years

+27.7%

Kept pace

42 of 96

Typically held 4 years

Homes in SA17 that Land Registry records as bought new and later resold, against the UK house price index for the same type of home and years. Shared-ownership first sales are left out.

Running costs

What new homes here cost to run

Energy bills

~£620/yr

Typical 108 m² home

Typical rating

EPC B

Solar panels

0%

of homes

Heat pumps

0%

of homes

From the energy certificates of 16 recently built homes. Certificate costs use standard assumptions, so compare them rather than budget on them. A typical older D-rated home costs nearer £1,800 a year.

HM Land Registry price paid data, standard sales only, to September 2026. New homes appear once their sale is registered, usually a few weeks after completion.

Questions

How much more do new builds cost in SA17?

Over the last two years, new detached homes in SA17 sold for a median £298,995 against £255,000 for existing ones, a difference of +17.3%. New homes are often a different size or spec, so compare price per square metre for a specific plot.

Do new builds in SA17 hold their value?

96 homes in SA17 bought new and later resold changed by a median +27.4%, typically after 4 years. The local market moved +27.7% over the same periods, so buyers of new homes generally lost some of the new-build premium.

Which new developments are selling in SA17?

Recent new-build sales recorded by Land Registry in SA17 include Ffordd Brynderi, Carway, Ffordd Y Felen, Carway. New streets appear once the first homes complete.

How do I know if a new build in SA17 is fairly priced?

Compare the asking price per square metre with plots already sold on the development, allow for the new-build premium, and negotiate extras as well as price. Proptel's new-build check does this for one plot for £9.99, with the extras to ask for and a letter for the sales office.

© 2026 Proptel · Property data for buyers