# How to sell a mortgaged apartment and buy a larger one

> You have a mortgaged apartment, want to sell it and buy a larger home? The key is coordinating the remaining debt, deadlines, deposit and next purchase in advance.

- Web page: https://urbaniagent.rs/en/blog/how-to-sell-a-mortgaged-apartment-and-buy-a-larger-one
- Language: English
- Other language: https://urbaniagent.rs/blog/kako-prodati-stan-pod-hipotekom-i-kupiti-veci.md
- Updated: 2026-09-25

- Published on: 2026-09-25
- Author: Urbani Agent
- Categories: Buying Property, Selling and Renting
- Tags: sale of mortgaged property

“We have a small apartment. We bought it with a housing loan, it is mortgaged, and now we want to buy something larger. How do we sell this one and buy the next without everything falling apart?”

It sounds complicated because two transactions — and often two financing structures — overlap.

But the mortgage itself is not the main problem.

The sequence is.

If you know in advance how much you still owe the bank, how much money will actually remain after the sale, what you can spend on the next property and in what order the commitments need to happen, the process can be organised without improvisation.

## A mortgage does not mean you must repay the entire loan from your own cash before selling

A mortgaged apartment can be sold.

When [selling a mortgaged property](https://urbaniagent.rs/en/blog/can-you-sell-a-mortgaged-property), the first step is to establish the exact outstanding balance and the procedure required by the bank for early repayment and the documentation needed to remove the mortgage.

The payment structure is then defined in advance: the part of the purchase price required to settle the existing loan is paid according to the bank's instructions, while the remaining amount belongs to the seller.

The exact sequence depends on the bank, the buyer's financing and the transaction documents.

This should be checked before accepting a [deposit](https://urbaniagent.rs/en/blog/deposit-when-buying-an-apartment-how-much-should-you-pay-and-what-should-you-know-beforehand) or promising a deadline that may not be realistic.

## First calculate how much money you will actually have for the next property

Suppose you sell your existing apartment for €170,000 and still owe the bank €45,000.

Your budget for the next purchase is not €170,000.

The starting point is what remains after settling the debt, transaction costs and any other obligations.

Only then do you add your savings or a new mortgage that you can realistically obtain.

Before seriously searching for the larger home, you therefore need three numbers:

• the realistic sale value of your current apartment;

• the exact amount required to close the existing loan;

• your realistic purchasing power for the next property.

Without those three numbers, it is easy to spend time viewing homes you cannot actually buy — or to limit yourself unnecessarily.

## What comes first — the sale or the purchase?

There is no single answer for every case.

The cleanest structure is usually to find a buyer for the existing apartment before taking on a major financial commitment toward the next property.

This reduces the risk of paying a [deposit](https://urbaniagent.rs/en/blog/deposit-when-buying-an-apartment-how-much-should-you-pay-and-what-should-you-know-beforehand) on a new home and then failing to sell the old one within the required timeframe.

Another option is to manage the sale and purchase in parallel.

That can work when the deadlines are realistic, your buyer is serious, the financing is clear and the seller of the property you are buying understands that your purchase depends on completing the previous sale.

The riskiest structure is to find the “perfect” new home, pay a significant [deposit](https://urbaniagent.rs/en/blog/deposit-when-buying-an-apartment-how-much-should-you-pay-and-what-should-you-know-beforehand) and only then start thinking about how the existing apartment will be sold.

## The [deposit](https://urbaniagent.rs/en/blog/deposit-when-buying-an-apartment-how-much-should-you-pay-and-what-should-you-know-beforehand) must reflect the real plan

If buying the larger property depends on selling the existing one, that is not a detail to leave for later.

Before paying a [deposit](https://urbaniagent.rs/en/blog/deposit-when-buying-an-apartment-how-much-should-you-pay-and-what-should-you-know-beforehand), it should be clear:

• when your sale needs to be completed;

• what happens if your buyer is using a mortgage;

• when you can realistically expect the funds to become available;

• what happens if the bank or documentation moves the timeline;

• what the consequences are if you cannot complete the next purchase by the agreed deadline.

A [deposit](https://urbaniagent.rs/en/blog/deposit-when-buying-an-apartment-how-much-should-you-pay-and-what-should-you-know-beforehand) is not simply a reservation.

It is a serious contractual commitment, so its terms need to reflect the actual structure of the transaction.

## Everything does not have to happen on the same day

People often imagine the only solution looks like this:

sell the old apartment in the morning, receive the money, buy the new apartment in the afternoon and move that evening.

Sometimes timelines can be coordinated very closely, but the point is not to complete both transactions formally on the same day.

The point is to avoid an unplanned financial or practical gap between them.

Your buyer may agree to a later handover.

The seller of the property you are buying may agree to a payment or move-out schedule that works with your sale.

You may need a temporary housing solution between the two transactions.

All of these can be manageable when agreed in advance.

## What if your buyer is also using a mortgage?

Then the chain contains another bank and another process.

That makes realistic contractual deadlines even more important.

The buyer needs to understand that your property is mortgaged and how that mortgage will be dealt with.

You need to know when you can realistically expect to receive the remaining purchase price.

The seller of your next property needs to know when you can perform your own payment obligation.

The more participants in the chain, the more important it becomes for someone to manage the overall schedule rather than each party understanding only their own step.

## Where does an agent actually help?

In this type of transaction, the agent is not simply the person selling the first apartment and finding the second one.

The role is to connect the overall process:

• assess the current apartment realistically;

• position the sale so unnecessary time is not lost;

• help establish the budget for the next purchase;

• coordinate communication with buyers and sellers;

• track deadlines;

• coordinate with the bank, lawyer and notary where applicable;

• help prevent you from taking on a new obligation before you understand how it will be fulfilled.

A good process does not mean nothing changes.

It means you know what to do when something changes.

## The sequence matters most

Selling a mortgaged apartment and buying a larger one is not unusual.

But it is not a situation in which improvisation works well.

First establish the realistic value of the apartment you are selling and the amount owed to the bank. Then define a realistic budget for the next purchase. Only after that should you connect the sales timeline, the new [deposit](https://urbaniagent.rs/en/blog/deposit-when-buying-an-apartment-how-much-should-you-pay-and-what-should-you-know-beforehand), financing and handover.

When those pieces are structured correctly, what initially looks like several problems at once becomes a series of manageable steps.

If you are in this situation, we can first review your current apartment and build a realistic plan for the sale and the next purchase. The [initial valuation](https://urbaniagent.rs/en/free-valuation) comes with no obligation.

*Note: This article is for informational purposes only and does not constitute legal, tax or credit advice. The exact process depends on the contracts, the bank, the financing structure, the documentation and the agreements between the parties in the specific transaction.*

## Similar stories

- [Can you sell a mortgaged property?](https://urbaniagent.rs/en/blog/can-you-sell-a-mortgaged-property.md)
- [How long does it take to buy an apartment in Serbia from agreement to receiving the keys?](https://urbaniagent.rs/en/blog/how-long-does-it-take-to-buy-an-apartment-in-serbia-from-agreement-to-receiving-the-keys.md)
- [Deposit when buying an apartment: how much should you pay and what should you know beforehand?](https://urbaniagent.rs/en/blog/deposit-when-buying-an-apartment-how-much-should-you-pay-and-what-should-you-know-beforehand.md)
- [What should you check before buying an apartment? 10 things you should not skip](https://urbaniagent.rs/en/blog/what-should-you-check-before-buying-an-apartment-10-things-you-should-not-skip.md)

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Contact: Urbani Agent · +381642420492 · info@urbaniagent.rs · Omladinskih brigada 90v, Novi Beograd
