Multi-Generational & Shared Site Design

Affordable | Efficient | Community-minded living

2–3 households on a co-developed site — creating warm, healthy homes at a fraction of the cost of buying separately.

We specialise in multi-generational home design in New Zealand, helping families create flexible, shared living solutions on a single site. These homes are designed to be compact, not cramped.

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multi generational housing design three homes shared site New Zealand

Example 1: 3 Homes

  • 3-bedroom two level home

  • 2-bedroom two level home

  • 1-bedroom single level home

  • Shared driveway + outdoor space

Who This Suits:

  • Multigenerational whanau who want to stay close while enjoying independent space

  • Families helping adult kids to buy

  • Ideal for families with young kids 190m² outdoor garden space (plus parking spaces)

multi generational home lower floor plan shared site layout NZ
multi generational home upper floor plan two level layout NZ

Floor Areas

  • 1-bedroom: 46m²

  • 2-bedroom: 78.5m²

  • 3-bedroom: 104m²

TOTAL FLOOR AREA: 228.5m²

Indicative build cost (per dwelling)

  • 1-bed (46m²) → ≈ $185,000

  • 2-bed (78.5m²) → ≈ $310.000

  • 3-bed (104m²) → ≈ $420.000

Indicative build costs are based on an assumed construction rate of $3,500 per m² + GST, calculated by multiplying the home’s floor area by this rate. They do not include site costs & outdoor areas

These example layouts are intended for sites of approximately 400m² or larger.

Site suitability will depend on planning rules, site shape, access, and local council requirements

Example 2: 2 Homes

  • 2 x Two-bedroom single level homes

  • Shared driveway + outdoor space

Who This Suits:

  • Multigenerational whanau who want to stay close while enjoying independent space

  • Downsizers

  • Retirees

  • Friends purchasing together

  • Single-income households who can’t afford to own a home on their home

  • Single parents

  • People rebuilding after separation or divorce

  • Two young families wanting to avoid a $900k mortgage

wo home shared site design single level multi generational housing NZ

Floor Areas

  • 2-bedroom: 70m²

  • 2-bedroom: 75m²

TOTAL FLOOR AREA: 145m²

Indicative build cost (per dwelling)

  • 2-bed (70m²) → ≈ $280,000

  • 2-bed (75m²) → ≈ $300,000

Indicative build costs are based on an assumed construction rate of $3,500 per m² + GST, calculated by multiplying the home’s floor area by this rate. They do not include site costs & outdoor areas

dual dwelling floor plan shared site compact homes New Zealand

Benefits:

  • larger outdoor spaces

  • A shared-site build gives you a brand-new home at a more affordable price

  • Smaller home loans mean better lifestyle

  • Shared sites mean more support without losing independance

Disclaimer: All plans, 3D images & design concepts remain the intellectual property of RotoSpace. No part can be reproduced, modified, distributed or used without prior written consent.

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Phone: 021 463 212

Mon – Fri 8:00am - 4.00pm

Located: Waiuku, Auckland, NZ

Service Areas: NZ & Australia