Core Legal | Commercial Property Lawyers in Masterton & Wellington

As property prices stabilise but the cost of living continues to rise, more New Zealanders are entering the property market through co-ownership arrangements. Intergenerational living, siblings buying together, friends pooling resources, or parents assisting with deposits are increasingly common across Masterton, Wellington, and the wider Wairarapa region.

While these arrangements can make home ownership achievable, they also carry significant legal and financial risks if expectations are not clearly documented from the outset. At Core Legal Masterton & Wellington, we regularly assist clients involved in co-ownership disputes that could have been avoided with proper legal planning.

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Common Co-Ownership Disputes in New Zealand

1. One Owner Wants to Sell – The Other Doesn’t

Sisters Aroha and Lucy purchase a home together. Years later, Lucy wants to sell her share to buy with her partner. Aroha wants to stay but cannot afford to buy Lucy out. Without a written agreement, disputes often escalate to forced sale applications or costly negotiations.

2. Renovations and Unequal Contributions

Friends Jamie and Nikau buy a property together and later renovate before selling. Nikau, a builder, completes substantial renovation work but never discusses payment expectations. After sale, disagreements arise about how proceeds should be divided. Without clarity, determining “fairness” becomes contentious.

3. Family Contributions and Estate Issues

Mia and Sam purchase their first home with Sam’s mother, Kate, contributing to the deposit. When Kate unexpectedly passes away, there is no written agreement documenting her share. The executor must determine her financial interest, causing delays in estate administration and family tension. Mia and Sam cannot afford to buy out Kate’s estate, placing the property at risk.

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Why a Property Sharing Agreement Is Essential

A Property Sharing Agreement (sometimes called a co-ownership agreement) is a legally binding document that sets out each party’s rights and obligations in relation to the property. It provides certainty and helps prevent disputes.

A well-drafted agreement typically addresses:

• Who owns the property and in what shares

• Whether ownership is as joint tenants or tenants in common

• How a party can sell or transfer their share

• How a share will be valued if one party wants to exit

• What happens if one party dies, enters a relationship, or separates

• How renovations or improvements are treated

• Who pays the mortgage, rates, insurance, utilities, and maintenance

Without clear documentation, co-owners may be exposed to claims under the Property (Relationships) Act 1976, trust law principles, or estate disputes.

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Protecting Your Investment

Buying property is one of the largest financial commitments most people will make. A Property Sharing Agreement is a relatively small upfront investment that can save substantial legal costs and stress later.

At Core Legal Masterton & Wellington, we offer practical, cost-effective advice, including fixed-fee initial consultations, to ensure your co-ownership arrangement is properly structured from day one.

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Frequently Asked Questions (FAQ)

Do I really need a written agreement if I trust the other person?
Yes. Even close family members or long-term friends can disagree when circumstances change. A written agreement protects everyone.

What is the difference between joint tenants and tenants in common?
Joint tenants own equal shares, and the property automatically passes to the surviving owner if one dies. Tenants in common can own unequal shares, which pass under a will.

What happens if one owner wants to sell?
If there is no agreement, disputes can result in court proceedings for a forced sale. A Property Sharing Agreement sets out a clear exit process.

Can contributions be unequal?
Yes. An agreement can record different deposit amounts, mortgage contributions, or renovation inputs.

What happens if one co-owner enters a relationship?
Their share may become subject to claims under relationship property law unless protected by appropriate agreements.

When should we put an agreement in place?
Ideally before purchasing the property or at settlement. Early legal advice ensures expectations are aligned and legally enforceable.

If you are considering buying property with family or friends in Masterton or Wellington, obtaining tailored legal advice before you sign is one of the most important steps you can take.