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Granny Flat – 70sqm

Self-contained minor dwellings up to 70m², built on the section you already own — for extended family, a home office, or a second income.

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    Self Contained. Fully Compliant.

    A minor dwelling — a granny flat, second dwelling or sleepout — is the fastest way to add real living space to a property in Auckland without buying more land. We design and build them end to end: site assessment, plans, engineering, council paperwork, construction and final sign-off, all through one contract and one point of contact.

    Recent changes to the standalone dwelling rules mean a single-storey granny flat of up to 70m² can now be built without a full building consent, provided the design, the site and the trades involved all meet the criteria. We’ll tell you at the outset which pathway your property qualifies for, and what it realistically costs, before you commit to anything.

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    Granny flat, 70 square metre minor dwelling Get a Free Quote

    What Is a Minor Dwelling?

    A complete second home on the section you already own.

    A minor dwelling is a small, fully self-contained house that shares a site with your main home. It has its own entrance, its own services and its own outdoor space, so whoever lives there lives independently — no shared kitchen, no shared bathroom, no coming and going through your hallway.
    That independence is what separates a minor dwelling from a sleepout or a converted garage, and it is what makes it rentable, valuable and comfortable to live in long term.

    Every minor dwelling we build includes:

    • One or two bedrooms
    • A full kitchen with proper storage and bench space
    • A separate bathroom and laundry
    • A private entrance and its own outdoor living area
    • Independent power, water and wastewater connections
    • Up to 70m² of floor area

    Built properly, it reads as a second home rather than an add-on — and values accordingly.

    Builders reviewing plans inside a home being renovated Check Your Site

    Up to 70m² Without a Full Building Consent

    The standalone dwelling rules, handled end to end.

    The rules around small standalone dwellings have opened up a faster, cheaper pathway for homeowners — but only where the design, the site and the people building it all meet the criteria. Getting that judgement wrong is expensive, so we make it the first thing we check.
    We assess your site, confirm which pathway applies, and take care of the notifications, records and producer statements either way. If a consent is required after all, we lodge it and manage it through to code compliance.

    To use the exemption, a granny flat generally needs to:

    • Be single-storey, standalone and no larger than 70m²
    • Be designed and built to the New Zealand Building Code
    • Be built or supervised by Licensed Building Practitioners
    • Sit on a site that allows a second dwelling under the local plan
    • Have the council notified before work starts and once it is complete

    We confirm your pathway in writing before any money is spent on plans.

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    Specified to Live In, Not Just to Pass

    The same build standard we use on a full renovation.

    A granny flat is small, which means every decision in it is visible and every shortcut gets noticed. We specify these builds to the same standard as a main-home renovation — warm, dry, quiet and cheap to run — because a cold, damp minor dwelling is difficult to rent and unpleasant to live in.
    Everything is chosen with the whole-of-life cost in mind, not just the build price.

    Included as standard:

    • Insulation to current Building Code requirements
    • Double glazed, thermally broken joinery
    • Heat pump and extraction that meets Healthy Homes standards
    • Full kitchen with quality benchtops and soft-close hardware
    • Fully tiled bathroom with a level-entry shower
    • Low maintenance cladding — weatherboard, brick or Axon

    Every build is covered by a written contract, a Master Build guarantee option and a defined defects period.

    Couple sitting outside their home Get a Free Quote

    One Section. Two Homes.

    Family close by, a second income, or both at once.

    Most of the minor dwellings we build are driven by one of two things: keeping family close without living on top of each other, or making an existing section earn its keep. A well-placed granny flat does both — parents stay independent next door, or the flat is tenanted while the family keeps the option open for later.
    Either way it is added floor area on land you already own, which is almost always the cheapest space you will ever build.

    Auckland homeowners build minor dwellings to:

    • Keep parents or adult children close while everyone keeps their privacy
    • Earn rental income from land they already own
    • Create a quiet home office, studio or guest suite
    • Give a teenager or student their own front door
    • Add long-term capital value to the property

    Talk to us about Finance Options if you would rather stage the cost across the build.

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    Connecting people, spaces & lifestyles.

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    Our Recent Projects

    Projects we're proud to showcase

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    Talk to a consultant today.

    Get a Free Quote0800 800 450

    Clients Testimonials

    Customers Love Our Services

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    Rachel Whitmore

    3 weeks ago

    The team turned up when they said they would and kept us in the loop the whole way through. The kitchen looks better than we pictured it and the job wrapped up two days ahead of the quoted date. Could not fault them at all.

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    Daniel Kavanagh

    2 months ago

    We had water damage through the back of the house and needed it sorted quickly for insurance. Having one point of contact meant we were not chasing five different trades, and every update came through without us asking.

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    Priya Raman

    4 months ago

    Had insulation, extractor fans and a heat pump put into two rentals to get them compliant. Clear quote up front, no surprises on the final invoice, and both properties passed the follow up inspection without any issues.

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    Frequently Asked Questions

    Do you have home renovation builders in Auckland?

    Yes. Affordable Homes has experienced builders who specialise in commercial and residential house renovations in Auckland. We are familiar with the local building codes and have completed hundreds of successful projects across the region. Regardless of where you are based, we can complete your remodel on time and within budget.

    Do you service other locations outside of Auckland?

    We work nationwide. Tell us where the property is when you enquire and we will confirm the nearest crew and what the timing looks like.

    How do I choose the best renovation companies in Auckland and throughout New Zealand?

    Look for a licensed building practitioner, a written quote that itemises the work, proof of insurance, and references from recent jobs of a similar size. We are happy to provide all four before you commit to anything.

    Will my renovation project require building consent?

    It depends on the work. Structural changes, plumbing and drainage alterations and most additions need consent; cosmetic work usually does not. We assess this during the site visit and handle the application for you where one is required.

    Arrears Management

    For managed properties we handle arrears follow up on your behalf, with clear written records of every contact made.

    Regular Inspections

    Scheduled property inspections with a photographic report after each visit, so you always know the current condition of the building.

    Book a Free Assessment

    Speak to an expert to discuss your options.

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