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Adam Carter photography

New House Design in Hertfordshire

A Contemporary New House Within Historic Grounds

This project explores a contemporary interior language grounded in natural materials and careful proportion. The layout prioritises light, flow and long views, while the interior design creates a calm, tonal backdrop that draws the surrounding landscape into the home. The result is a house that feels deliberate, quiet and deeply connected to its setting.

Photographer Dean Hearne

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This project involved the architectural interior design of a contemporary new house set within a listed Japanese garden. The brief was to develop a coherent interior concept across twenty eight spaces, ensuring the architecture, interiors and landscape were considered as a single, integrated whole.

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The interior language is deliberately restrained, grounded in natural materials, careful proportion and tonal consistency. Spatial planning prioritised light, flow and long views through the house, drawing the surrounding gardens into the interior and establishing a strong relationship between inside and out.

Natural materials, including lime render, timber, stone, sisal and muted mineral paints were selected to create a calm, enduring backdrop that allows form, light and landscape to take precedence.

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Luxury new house design in Hertfordshire by De Hasse architectural interior design

Key spaces were resolved with a focus on spatial clarity and material continuity. The master suite combines concealed timber joinery, integrated storage and natural finishes to create a composed and quietly luxurious retreat.

The stairwell was designed as a spatial anchor within the house, connecting levels through proportion, material restraint and controlled light rather than decorative emphasis.

Luxury new house design in Hertfordshire by De Hasse architectural interior design

Bespoke elements were designed throughout, including joinery, stone basins, lighting layouts and architectural detailing, ensuring consistency across the house rather than isolated moments.

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Bespoke external architectural metalwork was designed to extend the interior language into the landscape, particularly around the swimming pool, reinforcing continuity between inside and out.

Floor finishes and materials were selected to balance stone, timber and textile surfaces, referencing the eastern origins of the gardens while maintaining a contemporary architectural language.

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Private spaces were developed with the same attention to proportion, materiality and tone, allowing variation without disrupting the overall architectural coherence of the house.

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A room with black walls covered in traditional Asian-style tapestry artwork depicting scenes with numerous figures, trees, and structures.
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Layering elements such as lighting, furniture and antique pieces deliberately support atmosphere and depth across the house. Finishes were selected to work in dialogue with the architecture, reinforcing proportion and spatial clarity rather than competing with it.

Over a three year construction period, close collaboration with the architect, project management team, contractors and specialist consultants ensured continuity from concept through to completion. The result is a calm, deliberate and highly resolved home that feels deeply connected to its setting, balancing precision with warmth and restraint.