Nordborg suits groups and large families who want a roomy house on the island of Als, with a castle and lake nearby. Many homes have a sauna and most have a fireplace. They are scattered around the town, and a car is essential.
Nordborg is a town of about 5,700 people on the northwest half of Als, an island of 321 square kilometres off Jutland's east coast. Danfoss, founded in 1933, has its headquarters here, and it has a castle whose grounds are now a boarding school. The homes are scattered around the town over a wide area rather than gathered in one spot, so ask where a house sits. Most have a fireplace, many have a sauna and the typical one sleeps six, with a few far larger. Als has bays and coves on the west coast and the Northern Forest and Lake Nordborg on the east. Winter is a quiet season for a fireside stay.
The island's capital and largest town, split by the Als Strait, with a good harbour.
Home of Augustenborg Palace, now a hospital, whose castle church is open to the public in summer with tours.
Two beaches named as sights on Als.
Island reached by the ferry from Fynshav on Als to Søby.
Billund Airport is a practical landing point, about one hour 50 minutes by road. The Alssund Bridge, 682 metres long, carries road traffic across the strait onto Als. You will want a car: homes are scattered, and the beaches, ferries and Sønderborg are all separate drives.
Summer is when the Augustenborg castle church opens to the public, and the bays and coves of the west coast and the Northern Forest by Lake Nordborg suit long days outdoors. Ferries run from Hardeshøj and Fynshav to the mainland, Ærø and Funen. In winter the draw is indoors, with saunas in many homes and fireplaces in most. Check ferry timetables and opening times before an off-season trip.
Often. Many of the homes around Nordborg have a sauna and most have a fireplace. Private pools are rare, so Nordborg is a choice for fireside and sauna evenings rather than pool days.
Quite big. The typical home sleeps six, a good share sleep eight or more and a few sleep far more.
Billund Airport is a practical choice, about one hour 50 minutes by road. You drive over the Alssund Bridge onto Als. Hire a car, as the homes are scattered and public transport from Billund takes several hours.
Nordborg for space and quiet, Sønderborg for a bigger town with a good harbour. Nordborg has about 5,700 residents and a castle, while Sønderborg is the island's capital and largest town, split by the strait.
Written by the TrustedVillas team. Last reviewed October 2026.
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