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SY21

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New builds in SY21: what they really sell for.

11 new-build homes sold in SY21 in the last 12 months, 7% of all sales. New detached homes sold for a median £319,950, 6.7% more than existing ones.

Welshpool, covering Banwy, Llanfihangel and Llanwddyn, Berriew and Castle Caereinion, Chirbury & Worthen, Dolforwyn, Forden and Montgomery, Guilsfield, Llandrinio, Llanfair Caereinion and Llanerfyl.

New homes sold

11

7% of sales, last 12 months

New-build premium

+6.7%

Detached homes

Resold, vs market

+28.6%

Market +26.0%

Energy bills

~£563/yr

53% 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.

Llwyn Nant, GuilsfieldSY21 9FD · detached, semi-detached, terraced · 10 sold · latest Feb 2026
£173k–£420k£3,387/m²
Long Mountain View, TrewernSY21 8FH · detached, semi-detached · 7 sold · latest Nov 2025
£149k–£320k£2,727/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

+6.7%

New £320k · existing £300k

9 new-build sales

Semi-detached

+9.9%

New £210k · existing £191k

7 new-build sales

Resale

Do new builds in SY21 hold their value?

Bought new, resold

+28.6%

Local market, same years

+26.0%

Kept pace

6 of 12

Typically held 4.4 years

Homes in SY21 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

~£563/yr

Typical 77 m² home

Typical rating

EPC B

Solar panels

53%

of homes

Heat pumps

0%

of homes

From the energy certificates of 15 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 SY21?

Over the last two years, new detached homes in SY21 sold for a median £319,950 against £300,000 for existing ones, a difference of +6.7%. New homes are often a different size or spec, so compare price per square metre for a specific plot.

Do new builds in SY21 hold their value?

12 homes in SY21 bought new and later resold changed by a median +28.6%, typically after 4.4 years. The local market moved +26.0% over the same periods, so new homes here have broadly kept pace.

Which new developments are selling in SY21?

Recent new-build sales recorded by Land Registry in SY21 include Llwyn Nant, Guilsfield, Long Mountain View, Trewern. New streets appear once the first homes complete.

How do I know if a new build in SY21 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