Using Dover Heights Equity To Help Adult Children Buy In Sydney

Helping an adult child buy in Sydney using equity from a Dover Heights home usually means either a limited family guarantee, cashing out equity for their deposit, or co‑borrowing. The safest path is the one that keeps your total loan‑to‑value ratio (LVR) conservative (around or below 80%), preserves a solid cash buffer, and is clearly documented as a gift, loan or guarantee.

In a high‑price suburb like Dover Heights, you need a decision‑grade plan, not a vague promise to “help with the deposit”. This guide shows the main structures, numbers to watch, and a one‑week action plan.

Start with a clear view of your Dover Heights equity, buffers and future plans.

Step 1: Know how much Dover Heights equity you can safely use

Work out your safe LVR and buffer

1. Estimate your home value (recent sales, agent appraisal, bank estimate).
2. Add up all loans secured on the Dover Heights property.
3. Divide loans by value to get your current LVR.
4. Decide a maximum portfolio LVR you’re comfortable with – many Eastern Suburbs households sit safest at or below 70–80%.

For context, APRA expects banks to test your loans with at least a 3% serviceability buffer over the actual rate. That means a higher LVR + rising rates can quickly squeeze cashflow if you don’t hold a strong buffer.

A practical starting point is similar to the buffer framework in /insights/dover-heights-home-6-12-month-cash-buffer:

• 6–12 months of essential living costs; plus
• all mortgage repayments, stressed at rates 3% higher.

If helping your children would wipe out that buffer, you’re probably offering too much.

Worked example: Dover Heights equity for a Bondi purchase

• Dover Heights home value: $4.0m
• Existing P&I loan: $1.2m (LVR 30%)
• Comfortable max LVR: 70% (i.e. $2.8m total lending)

Available capacity to play with: $2.8m – $1.2m = $1.6m.

Your child wants to buy a $1.3m two‑bed in Bondi with a 20% deposit:

• Required deposit + costs (stamp duty, legals, etc.): say $320k–$340k
• Your equity contribution target: maybe $300k, keeping some of their own savings in the deal.

That $300k would sit well within your spare capacity of $1.6m if you keep a cash/offset buffer intact.

Step 2: Compare your three main structures

You generally have three levers when helping adult children buy:

1. Limited family guarantee over part of your Dover Heights equity.
2. Cash‑out an equity split and gift/loan funds to them.
3. Co‑borrow / co‑own the new property.

This table sums up the trade‑offs (figures indicative only):

For a deeper pros‑and‑cons breakdown, see /insights/using-equity-help-kids-guarantor-vs-cash-out. The right structure depends on your age, how close you are to retirement, and whether you might downsize or invest again from the same Dover Heights equity.