The architectural style of Klitgaarden strikes a balance between grandeur and understated simplicity. It conveys a sense of dignity suitable for a royal family without being ostentatious. There are no spires or towers; instead, the design emphasises functional architecture that departs from the dominant historicism of the era. The building reflects the character of Skagen with its yellow facades, red tile roof, and whitewashed chimneys. The main structure features two wings that discreetly welcome visitors from the exterior while primarily opening to the sea from the interior, suggesting the building's role in safeguarding the privacy of the royal Danish family.

Klitgaarden architecturally balances between towering pomp and withdrawn simplicity. Between being worthy of a royal family without being flashy. There are no spires or towers here, only well-thought-out, functional architecture that did away with the dominant historicism of the time, coloured after the style of Skagen with its yellow houses, red bricks and whitewashed chimneys. The main building with its two short wings invites you in discreetly from the outside, but opens mostly to the sea from the inside – as if to indicate that the building protected the privacy of the Royal Family.

The interior design and furnishings of Klitgaarden draw inspiration from the English Arts & Crafts movement led by William Morris. This movement emphasised quality materials and visible craftsmanship. Design elements such as bars serve both as structural support and decorative features on chairs, sofa backs, ceiling friezes, and panels. The aesthetic is graphic yet straightforward, exuding a sense of humility that befits a royal residence. Architect Ulrik Plesner, influenced by his time in England and the Arts & Crafts movement, designed the house's furniture, which the local cabinetmaker Bødker crafted.