Can a townhouse, unit title or bach get solar?

A townhouse you own on its own title, with its own roof and its own switchboard, can take solar in much the same way as a detached house. A unit title is different: the roof is often common property, and the body corporate has to agree before anyone mounts panels. A bach or holiday house can take solar too, and the payback is usually weaker because the house is empty when the sun is strongest.

Work out which of those three you actually have before you request quotes. The hardware is similar. The permission and the occupancy are not.

Fee-simple townhouses

If the title gives you the roof and the board, the design questions are the usual ones: area, orientation, shade from the neighbour's upper storey, and switchboard space. Townhouse roofs are often small, so the panel count may stop at a modest array even when the bill could use more. The count guide is here: https://homesolarinstallation.co.nz/blog/how-many-solar-panels-nz/

Covenants and design guidelines can still restrict visible panels, colour, or street-facing arrays even on a fee-simple title. Read them before you pay a deposit. A covenant is not a body corporate, but it can still stop a design.

Party walls and tight access change scaffold and cable routes. Ask the quote to include access. A cheap price that assumes a freestanding house is not your price.

Unit titles and body corporate

On many unit titles the roof plane and the external structure are common property. You may own the interior and a share of the common property. You do not get to drill the common roof because you pay a levy. The body corporate, under its rules and the Unit Titles Act process, has to approve the work.

Ask the chair or the manager, in writing, what consent is required, whose insurance covers the altered roof, who maintains the penetrations, and what happens when the building re-roofs. Get the minutes or the written consent before any installer is booked. A verbal the committee is fine with it will not survive a leak.

Shared switchboards and shared metering can make a single unit's array hard to connect fairly. If several owners want solar, a building-level design may be the only workable one. If only you want it, the electrical path from your meter to a roof array still has to be agreed. Budget time. This paperwork can take longer than the roof day. The timeline guide is the ordinary house version: https://homesolarinstallation.co.nz/blog/solar-installation-time-nz/

Cross-lease

Cross-lease titles often need the other owners' consent for external alterations. Solar on a roof can be that kind of alteration. Ask your lawyer if you are unsure which title you hold. Do not rely on the installer to interpret the lease.

The same practical tests still apply: structure, shade, board, and export limit. Consent does not invent roof area. Refusal does not mean the panels were a bad product. It means this title will not host them.

Baches and holiday houses

A bach used at weekends and in holidays generates into an empty house for much of the year. Self-consumption falls. More energy is exported at the buy-back rate, or clipped if the connection has a cap. EECA's savings examples assume a home that uses power. Apply them carefully. The worth-it guide shows who gets the stronger return: https://homesolarinstallation.co.nz/blog/is-solar-worth-it-nz/ The buy-back guide is what export actually pays: https://homesolarinstallation.co.nz/blog/solar-buyback-rates-nz/

Hot water left on for occasional visits is a small load. A timer that heats only when you are due to arrive will not soak up Tuesday's sun. Be honest in the yield model.

Off-grid baches are a different system: storage, a generator or equivalent backup, and a design that covers the worst week, not a grid-tied array with a buy-back plan. Some island and remote properties are off-grid. Many mainland baches are on the grid and should be quoted as grid-tied. Say which supply you have. Do not buy an off-grid kit for a house that already has a retailer account.

Coastal hardware and access

Salt air and wind change fixings, rail coatings and where the inverter should sit. Ask what the quote assumes for a coastal site. A tidy inland specification can be the wrong hardware on an exposed beach roof.

Access and freight change the price more than the panel brand does. An island job, a long unsealed drive, or a roof that needs a barge and a fine weather window will not match a suburban band. EECA's figures, about $8,500, $11,500 and $20,000 before a battery, are standard installs. Treat them as context. The cost guide explains extras: https://homesolarinstallation.co.nz/blog/solar-panel-cost-nz/

Insurance and certificates matter more, not less, when a later repair is a long trip. https://homesolarinstallation.co.nz/blog/solar-home-insurance-nz/ and https://homesolarinstallation.co.nz/blog/solar-warranties-nz/

What to gather before the quote

Title type, any body corporate rule or covenant, roof photos, a power bill or a note that the house is rarely occupied, and access constraints. That pack saves a design that cannot be consented.

Home Solar Installation NZ can introduce a local partner when you are allowed to put panels on the roof you have. The form is free and there is no obligation. If you are a tenant, read the rental guide first: https://homesolarinstallation.co.nz/blog/solar-on-a-rental-nz/

Which of these places is which

Townhouse, unit-title and bach solar jobs occur across Algies Bay, Arkles Bay, Army Bay, Big Omaha, Coatesville, Dairy Flat, Dome Forest, Dome Valley, Glorit, Gulf Harbour, Hatfields Beach, Helensville, Huapai, Kaukapakapa, Kawau Island, Kumeu, Leigh, Matakana, Muriwai, Omaha, Orewa, Puhoi, Riverhead, Snells Beach, South Head, Waimauku, Warkworth, Wellsford, Bayswater, Belmont, Campbells Bay, Castor Bay, Devonport, Forrest Hill, Hauraki, Milford, Narrow Neck, Stanley Point, Sunnynook and Takapuna. Unit-title and terrace housing is more common on the North Shore in Takapuna, Milford, Belmont, Hauraki, Forrest Hill, Sunnynook, Devonport, Bayswater, Narrow Neck and Stanley Point. Fee-simple houses with their own roofs are common in Castor Bay, Campbells Bay, Coatesville, Dairy Flat, Riverhead, Kumeu, Huapai, Waimauku and Helensville. Baches and coastal houses show up at Orewa, Gulf Harbour, Army Bay, Arkles Bay, Hatfields Beach, Snells Beach, Algies Bay, Leigh, Matakana, Omaha, Big Omaha, Puhoi, Warkworth, Wellsford's outskirts, Muriwai, South Head, Glorit, Dome Valley, Dome Forest, Kaukapakapa and on Kawau Island. Kawau Island adds freight and, on some properties, an off-grid supply. Ask which supply and which title you have. The suburb name does not answer either question.

EECA's note on whether solar suits the household is here: https://www.eeca.govt.nz/for-homes/solar-for-homes/is-solar-right-for-your-home/ Cost bands are here: https://www.eeca.govt.nz/for-homes/solar-for-homes/solar-costs-and-savings/