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ADU Architecture & Design Principles in Beverly Hills

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ADU Architecture & Design · Beverly Hills

Designing an ADU in Beverly Hills often means introducing a secondary residence into a property that already has a strong architectural and landscape identity. Pools, gardens, mature planting, guest areas, outdoor entertaining and hillside conditions can all influence where the new dwelling belongs and how it should relate to the main residence.

Planning the ADU as Part of a Complete Residential Composition

The ADU should be designed as one element within the larger property rather than as an isolated structure occupying available land.

On larger properties, the new dwelling may sit near a pool, garden or separate outdoor zone and function almost like a private guest residence. On more compact lots, careful footprint planning may be necessary to preserve enough outdoor space between buildings for both residences to remain comfortable.

Property hierarchy is particularly important. The ADU can have its own architectural identity while remaining clearly secondary to the primary residence through scale, placement, roof height and landscape relationships.

Privacy should also extend beyond the two buildings themselves. Entrances, patios and glazing should consider neighboring properties and elevated sightlines, especially where the site begins to rise toward hillside areas.

The ADU should feel like a carefully considered part of the estate — not an additional building competing for attention.

Principle 01

Preserve the Property Hierarchy

The ADU can feel substantial and complete while remaining visually secondary to the main residence.

Hierarchy can be established through placement and proportion. Roof height, building mass and distance from the primary residence can create a clear relationship between the two structures.

This allows the ADU to have its own architectural character without competing with the main house.

Principle 02

Protect Pools & Gardens

Outdoor amenities should remain central parts of the property rather than becoming leftover areas around the ADU.

Existing outdoor rooms often organize the property as strongly as the house. Pools, gardens, terraces and entertaining areas can guide where the ADU belongs.

The new structure may even strengthen those spaces by creating a defined edge or more private garden zone.

Principle 03

Create Discreet Independence

Guests or long-term occupants can have a clear sense of privacy without separating the ADU completely from the property.

Independent circulation can remain subtle. A landscaped path, side entry or secondary courtyard can establish a distinct arrival sequence.

Orientation and planting can then provide privacy while maintaining a coherent relationship between both residences.

Using Proportion, Light & Material Restraint

A refined ADU does not depend on excessive architectural gestures. Proportion, shadow, material continuity and controlled openings can create a stronger result.

Major glazing can face gardens, pools or private landscape while more exposed elevations remain quieter. This allows living spaces to feel open without creating unnecessary views toward neighboring homes.

Roof extensions, recessed openings and deeper thresholds can control direct sunlight while adding depth to the building. These elements also create protected outdoor areas that extend the usefulness of the interior.

The relationship to the primary residence can be established through scale, geometry or material tone rather than direct imitation. A contemporary ADU can still feel appropriate within a more traditional or established architectural setting.

Principle 01

Open Toward Private Landscape

The strongest glazing can face gardens, pools or controlled courtyards rather than neighboring properties.

Openness is most successful when it has an intentional destination. A living room facing a private garden can feel expansive while maintaining strong residential privacy.

More exposed sides of the ADU can use smaller or higher openings to maintain daylight without unnecessary visibility.

Principle 02

Use Shadow as Architecture

Deep openings and roof extensions can provide solar protection while giving the façade greater refinement.

Architectural depth can replace decorative complexity. Recessed glass, protected entries and shaded terraces create changing shadow throughout the day.

This allows the building to remain visually calm while still feeling carefully detailed.

Principle 03

Connect Through Scale & Material

The ADU can relate to the main residence through proportion and material tone without copying its architecture directly.

Continuity can be subtle. Similar stone tones, wood species, window proportions or roof depth may be enough to connect the buildings visually.

This gives the ADU architectural independence while keeping the overall property composed.

Designing the Interior With the Character of a Complete Residence

A Beverly Hills ADU should feel considered at the scale of everyday living, not like a reduced version of a larger home.

The main living area can combine kitchen, dining and lounge functions within one strong volume while maintaining clear furniture relationships. Larger openings can extend this shared space toward a garden, patio or pool.

Bedrooms should provide enough storage and usable wall area for long-term occupancy. Window placement can frame landscape views without sacrificing the practical furniture layout of the room.

Material continuity, integrated cabinetry and selective ceiling volume can give the interior greater refinement while keeping the plan visually calm and efficient.

Principle 01

Create a Complete Living Environment

The ADU should support real daily life with comfortable shared space, storage and outdoor connection.

Compact does not need to feel temporary. Kitchen, dining and living functions can work together within one generous central space.

Careful proportions and furniture planning allow the interior to feel residential rather than compressed.

Principle 02

Use Materials Continuously

A restrained palette can connect rooms and create a calmer, more refined interior experience.

Continuity increases perceived space. Repeated flooring, cabinetry and wall finishes allow separate rooms to feel part of one architectural environment.

Texture, furniture and lighting can then provide variation without creating unnecessary visual fragmentation.

Principle 03

Use Volume Selectively

Higher ceilings can emphasize shared spaces while bedrooms and service areas remain more intimate.

Vertical space can create hierarchy without increasing the footprint. A vaulted or raised living room can feel substantially more generous and support additional daylight.

Lower private rooms provide contrast and allow storage, lighting and mechanical systems to be coordinated more efficiently.

Carrying Architectural Restraint Into Detailed Development

The design should maintain the same clarity established during concept planning as structural, technical and construction requirements become more detailed.

Initial property studies establish the relationship between the ADU, main residence, landscape and outdoor amenities. Plans and elevations then refine scale, roof form, glazing and material relationships while the architectural direction remains flexible.

Three-dimensional visualization can help evaluate the ADU from important areas of the property, including gardens, terraces and pool zones. Interior views can simultaneously test furniture, cabinetry, materials, ceiling height and natural light.

As the project advances, structural requirements, utilities, site conditions and practical construction considerations are incorporated into the documentation. Where professional review or architectural stamping is required, drawings can be coordinated with the appropriate licensed design professional as part of preparing the project for permit submission.

01

Property Composition

Architecture, landscape, pools, gardens, privacy and circulation establish the project framework.

The ADU is studied as one part of the complete residential property. Existing outdoor rooms, important landscape and the relationship to the primary residence identify the strongest building zone.

This allows the project to preserve what already works before new architecture is introduced.

02

Architectural Direction

Footprint, proportion, roof form, openings and materials develop as one coordinated concept.

Refinement comes from resolving relationships rather than adding complexity. Small adjustments to scale or orientation may improve privacy, landscape and exterior proportion simultaneously.

The preferred concept becomes the framework for detailed architectural development.

03

Visualization

Three-dimensional studies evaluate exterior scale, material relationships, outdoor spaces and interior refinement.

Visualization allows the architectural composition to be reviewed before construction. The ADU can be evaluated from the main residence, pool, gardens and important arrival points.

Interior studies can confirm cabinetry, furniture, materials, glazing and ceiling volume while the design remains adjustable.

04

Detailed Coordination

The selected design develops into coordinated project drawings toward permit and construction.

The architectural concept is translated into buildable information. Plans, elevations and sections develop alongside structural, utility and construction coordination.

Where required, drawings can be coordinated with the appropriate licensed design professional for review and stamping as part of the permit process.

ADU Design · Beverly Hills

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