Gwynedd and Anglesey · Wales

Two-storey extensions in Tywyn

Need more room in Tywyn? Two-storey and first-floor extensions add bedrooms and living space without moving. Here's everything we offer locally.

Tywyn at a glance

Postcode districts
LL35, LL36, LL37, LL38, LL39 and LL42
Area
Gwynedd and Anglesey, Wales
Price region
Wales
Nearest towns
Aberystwyth (11.8 miles), Penparcau (12.6 miles), Pwllheli (25 miles), Llanidloes (25.1 miles)
Distance to Bangor (Gwynedd and Anglesey)
about 44.4 miles
Approvals
Two-storey rear: ground floor up to 4 m, first floor up to 3 m and 10.5 m from the rear boundary. Some two-storey side extensions can be permitted development.

Around Tywyn we also work in Aberystwyth, Penparcau and Pwllheli, and across the rest of Gwynedd and Anglesey. Postcode districts in and near Tywyn: LL35, LL36, LL37, LL38, LL39 and LL42.

Extensions available in Tywyn

Which type suits your house?

If you're not sure which type fits, that's what the free visit is for. We'll sketch the realistic options for your house in Tywyn, with a rough idea of the approval route and cost for each.

Also available in Gwynedd and Anglesey

Rules for Tywyn

Tywyn is in Wales. Two-storey rear: ground floor up to 4 m, first floor up to 3 m and 10.5 m from the rear boundary. Some two-storey side extensions can be permitted development. Householder planning application: £585. Councils normally decide householder applications within 8 weeks.

The full Wales rules explained

Questions about extensions in Tywyn

Do you cover Tywyn?

Yes. We cover Tywyn (LL35, LL36, LL37, LL38, LL39 and LL42) and the surrounding area, including Aberystwyth and Penparcau. The first site visit is free.

What does a two-storey extension cost in Tywyn?

Using our Wales guide, a two-storey rear extension with a 4 m × 3.5 m footprint on two floors (28 m² of new floor space) is about £51,500–£69,500 including VAT. An extension over a garage is about £29,000–£42,000.

Which other places near Tywyn do you cover?

Everywhere around it, including Aberystwyth (11.8 miles), Penparcau (12.6 miles) and Pwllheli (25 miles), and the rest of Gwynedd and Anglesey.

Nearby towns

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