A bach is not a small house — it is a different brief. It sits closer to the water, it is empty for long stretches, and it gets used hardest in the weeks when the weather is at its most generous and its most corrosive.
Which is why the compact end of the character range suits the Bay of Islands so well: a cottage or small villa is the right size, the right look for the setting, and — built properly — the right answer to a coastal site that has to look after itself while you are not there.
Salt air decides the specification
This is the first thing to settle, and it is not a design question. Under NZS 3604, corrosion zone D — the sea spray zone — covers land within 500m of the sea and within 100m of tidal estuaries and sheltered inlets. In the Bay of Islands, a great many of the best sites sit squarely inside that band.
In zone D, structural fixings must be type 304 stainless steel, and cladding fixings must achieve at least 15-year durability — 50-year where the cladding also braces the building. None of that changes how the house looks: the weatherboards, the verandah and the joinery all work at the coast. They simply need specifying for the zone from the start, as covered in weatherboard cladding for a character home.
On a holiday home this matters more than on a permanent one, because nobody is there to notice the early signs.
Which plans suit a holiday home
The compact range is built for this brief — cottages, pioneer-style homes and one and two-bedroom designs:
- Two and three-bedroom cottages sleep a family without becoming a second house to maintain.
- One-bedroom studios and cabins suit a simple coastal retreat, or guest accommodation beside an existing home.
- Pioneer-style designs — plainer gabled forms with modest detailing — sit particularly well in a coastal and rural setting, where a highly ornate villa can look overdressed.
The full compact range is in cottage and small home plans. A deep verandah earns its keep more here than anywhere — it is the room you actually use on holiday, and it shades the house through summer. See verandahs and outdoor living.
Designing for a house that sits empty
A holiday home spends most of the year closed up, and that shapes a handful of decisions:
- Ventilation and moisture. A closed house in a humid subtropical climate needs to breathe. Plan for it rather than discovering it.
- Security and shutting up. How the house locks down, and how quickly it opens again, is worth designing in.
- Low-maintenance specification. Every finish you choose is one you will maintain from a distance. Pre-primed and factory-finished materials earn their place here.
- Hard-wearing interiors. Timber floors and robust finishes handle sand, wet togs and a full house better than delicate ones.
A second dwelling on an existing property
If you already own land in the Bay of Islands with a house on it, the rules changed in your favour. Since 15 January 2026 one detached, self-contained dwelling of up to 70m² can be built without a building consent or a resource consent, where it meets the exemption criteria — single storey, detached, simple design, built by professionals, with a PIM before you start and notification to council on completion.
That is a genuinely useful route for guest accommodation or family on a coastal property. It applies to an additional dwelling on a site, so a standalone bach on its own bare section still goes through the normal consent process. The detail is in granny flat and sleepout rules, and the wider consent picture in getting a new build through council.
Where we build in the Bay of Islands
Heritage Homes builds throughout the Bay of Islands and the wider Far North — Paihia, Russell, Ōpūa, Kerikeri, Waipapa and Kawakawa, and out to Doubtless Bay and the Hokianga. For the district picture see character home builders in the Far North, and for the town itself, building a character home in Kerikeri.
Your local team
Heritage Homes builds new villas, bungalows and cottages across the Far North, from an established plan range or a full custom design, and manages the consent process as part of the build. The local licensee is Sam Corbett, raised in Kerikeri, with over 20 years' collective experience building in the Far North and abroad.
Frequently asked questions
Does a bach in the Bay of Islands need special materials?
Very often. Under NZS 3604, corrosion zone D — the sea spray zone — covers land within 500 m of the sea and within 100 m of tidal estuaries and sheltered inlets, and many of the best Bay of Islands sites fall inside it. In zone D, structural fixings must be type 304 stainless steel and cladding fixings must meet higher durability requirements. It changes the specification rather than the design.
What size holiday home should I build?
Most holiday homes work best at the compact end — two and three-bedroom cottages sleep a family without becoming a second house to maintain, and one-bedroom studios or cabins suit a simpler retreat or guest accommodation. A deep verandah is worth more here than extra internal floor area, because it is the space you actually use.
Can I build a second dwelling on my Bay of Islands property?
Since 15 January 2026, one detached self-contained dwelling of up to 70m² can be built without a building or resource consent where it meets the exemption criteria. It must be single storey, detached and of simple design, built by professionals, with a PIM obtained before work starts and the council notified on completion. The exemption covers an additional dwelling on a site, so a standalone bach on a bare section still needs normal consent.
What should I think about for a house that sits empty?
Ventilation and moisture control in a humid subtropical climate, how the house locks up and reopens, low-maintenance specification you can look after from a distance, and hard-wearing interior finishes. A holiday home is closed for long stretches, so problems go unnoticed longer than they would in a permanent home.
Which character style suits a coastal holiday home?
Simpler forms generally read better at the coast. Pioneer-style designs — plainer gabled shapes with modest detailing — and cottages sit comfortably in a coastal and rural setting, where a highly ornate villa can look overdressed. A generous verandah matters more than ornament.
Talk to us about building here
Prefer to talk? Call Heritage Homes on 0508 40 30 20 or email sales@hhomes.nz.