Should You Buy a New House Before Selling Your Old One?

One of the most common questions we hear from homeowners in London is about timing: do I buy first, or sell first? There is no single right answer. It depends on your finances, your market, and how much risk you are comfortable with.

The case for buying first

• No rush to find a home. You can take your time with the search and choose the right house instead of settling for what is available the week your sale closes.
• One move. You may be able to move once, instead of renting short term or staying with family between homes.
• Less pressure on your sale. When you already own the next home, you may be more comfortable waiting for the right buyer.
• Flexibility on timing. You can often prepare and stage your old home while it is empty, if you have already moved.

The risks of buying first

• Two homes at once. You may carry two mortgages, two sets of property taxes, utilities and insurance until the old home sells.
• Qualifying. Lenders will look at whether you can afford both properties for the overlap, so your approval matters. Ask early.
• Sale uncertainty. Locally, LSTAR’s September 2026 release described continued signs of a buyers’ market, with 5.9 months of inventory. That is a reminder that your sale could take longer than you hope, so build in a buffer.
• Extra costs. Closing costs, including land transfer tax, apply to your purchase while you wait to receive the proceeds of your sale.

The case for selling first

• Certainty. You know how much money you will have, and your budget is firm.
• Lower financial risk. You are not carrying two homes at the same time.
• Stronger offers. A buyer with no home sale to wait on may find it easier to put in a clean offer.

The trade-off is that you may need temporary housing, storage, or a longer closing on the purchase, and you will be searching on a deadline.

What about bridge financing?

Some lenders offer bridge financing, a short-term loan that helps cover the gap when your new home closes before your old one. We are not going to quote rates, because they vary by lender and over time. If you are considering it, ask your lender or mortgage broker how it is priced, what fees apply, how long it can last, and what security they require. Then compare it with the cost of simply selling first.

Tools for the in-between

• Matching closing dates. If your sale and purchase can close the same day, you avoid the overlap altogether. Your lawyer and REALTOR® can help you plan this.
• A sale condition. Some buyers include a condition tied to selling their home; the details are set in the Agreement of Purchase and Sale, so ask your lawyer.
• Flexible closing. Negotiating a longer or shorter closing can help bridge your timeline.

A simple way to decide

1. Find out your home’s value with a free home valuation.
2. Talk to a lender about what you qualify for with and without the sale.
3. Estimate your total overlap costs for one, three and six months.
4. Compare that to the risk of selling first and renting.

If you are a first-time buyer or this is your move up, read about down payments and mortgage insurance. When it comes to the tax side of selling, see our guide to the principal residence exemption. Browse the buyer hub and London communities, or contact us to talk through your timing.

Questions to ask yourself

• How long could I carry two homes if my sale takes longer than expected?
• Will my lender approve me on both properties, and on what terms?
• How flexible are my work, family and school schedules?
• Is my current home move-in ready, or does it need work before it will sell well?
• What is my comfort level if the sale price comes in lower than I hoped?

Your honest answers will usually point to the right order for your move.

This is general information, not financial advice.