Selling a House When a Joint Owner Is Missing (UK 2026 Guide)

By Lisa Hayes · 1 November 2026

If a joint owner has vanished, you cannot simply sell without them. Every named owner on the title normally has to sign. The legal ways round it are slow but real: a court-appointed guardian for a person missing at least 90 days (Guardianship (Missing Persons) Act 2017), a declaration of presumed death once someone has not been known to be alive for seven years, or a court order for sale. Which one fits depends on how long they have been gone and why.

This is one of those problems that sounds like a soap opera until it happens to you. A former partner who left years ago and cut contact. A brother who emigrated and stopped answering. A parent's co-owner who simply disappeared. Maybe a long-lost relative named on a title you inherited. You want to sell, the bank statement says the mortgage is eating you alive, and the one signature you need belongs to someone nobody can find.

I have written plenty about deadlocked co-owners, but the guides on the site mostly deal with an owner who is awake and refusing. A missing owner is a different animal. You cannot negotiate with them, cannot serve them in the usual way, and cannot ask them to sign. This guide explains what the law offers, in what order I would think about it, and how to avoid the shortcuts that wreck sales.

A quick caveat. This is a guide for homeowners, not legal advice. These cases turn on facts, and you will need a solicitor who handles property and, usually, litigation. My aim is to make sure you walk in knowing which questions to ask.

Why can't I sell if a joint owner is missing?

When the title lists two or more owners, the agreement of all named owners is needed to go ahead with a sale. The buyer's solicitor checks the register, sees two names and will not exchange until both are bound. It does not matter if you pay the whole mortgage, live in the house, or have not heard from the other person in a decade.

Buyers and their lenders are right to insist. If you somehow sold without the other owner and they reappeared, they could claim their share and the buyer's title would be in doubt. No sensible solicitor will risk that, which is why "just sell it and sort it later" does not work.

The fact that your co-owner is missing does not suddenly remove their rights. It just means somebody else may have to exercise them, under a court's supervision.

First, are they actually missing or just hard to reach?

Most "missing" co-owners turn out to be silent rather than gone. Before you spend a penny on court, make a proper effort to find them and keep a written record of every step. A judge will ask what you did, and a solicitor will ask before that.

• Write to the last known address by recorded delivery, and to any address on old mortgage or bank paperwork.
• Ask mutual contacts: relatives, former employers, old friends, social media connections.
• Check the electoral roll and online searches, and consider a professional tracing agent. The cost is usually modest compared with court fees.
• Ask the lender if there is a mortgage. They may hold a current address or contact number and can sometimes forward a letter.
• Check whether they have died. A search of probate records can show whether someone has already been dealt with. If they have died, the problem is different, and our guide to selling after a joint owner dies applies.

If a trace finds them, the problem usually shrinks overnight. Even an unwilling co-owner is easier to deal with than a missing one, and our guide on what to do when a co-owner won't sell covers that route.

What are the legal routes if they cannot be found?

What is a guardianship order for a missing person?

The Guardianship (Missing Persons) Act 2017 lets a person apply to the court for an order appointing a guardian in respect of some or all of a missing person's property and financial affairs. It was designed for exactly this situation: someone has gone and nothing short of a court can authorise anyone to manage their affairs.

• 90 daysminimum missing period before applying
• <4 yearsmaximum length of one order
• 7 yearsfor a presumed-death declaration

The court must be satisfied of several things. The person is missing, they were missing throughout the period of 90 days ending on the day the application is made, appointing a guardian is in their best interests, and there is a suitable person who could be appointed.

There is also a jurisdiction test. The court can usually hear the application only if the missing person was domiciled in England and Wales the day before they first went missing, or was habitually resident there for the year before. A spouse or civil partner applying can qualify on their own domicile or residence instead.

The guardian has to be an individual aged at least 18 or a trust corporation. They must agree to act, be suitable, and act in the missing person's best interests. Importantly for you, the powers the court can give them include selling, letting or mortgaging the missing person's property. They can also be given power to deal with debts, invest money, bring legal proceedings and execute deeds.

There are limits. A guardian cannot make a will for the missing person, and gifts are only permitted if the order expressly allows them. And a single order cannot run for four years or more: it must end before the end of the period of four years beginning with the day it is made, although later orders can be made.

Who can apply, and should it be me?

The Act says a person may apply, which is broad. In practice a co-owner who needs to sell is an obvious applicant, though the court will want a suitable person as guardian and will look hard at conflicts of interest. You are asking to deal with someone else's share and you stand to benefit from the sale. Expect the court to want safeguards: the missing person's share of the proceeds protected, a fair price, and proper accounting.

Many families choose a neutral guardian, such as a solicitor or a trust corporation, to avoid any suggestion of self-dealing. It costs more, but it makes the order easier to obtain and the title easier for a buyer to accept. My view: if the sums are large, pay for neutral. Cutting that corner to save a few thousand pounds is a poor trade when your sale price is at stake.

What is a declaration of presumed death?

If someone has been gone for a very long time, the Presumption of Death Act 2013 offers a more final answer. It applies where a missing person is thought to have died, or has not been known to be alive for a period of at least seven years. Any person may apply to the High Court for a declaration that the missing person is presumed to be dead. But the court must refuse if the applicant is not the person's spouse, civil partner, parent, child or sibling and does not have a sufficient interest.

If death is not proven but the person has not been known alive for seven years, the court finds they are presumed to have died at the end of the period of seven years beginning with the day after the day they were last known to be alive. The declaration is conclusive of the presumed death and effective against all persons and for all purposes, including acquiring an interest in property. That is why it matters for a sale: it changes who has a legal interest.

The Act also has notice and advertising requirements, and the court must refuse to hear the application if they are not met. The High Court can later vary or revoke a declaration if the person turns up alive. The Act extends to England and Wales.

How the declaration plays out depends on how you hold the property. If you are joint tenants, a presumed death normally means the survivor takes the whole property by survivorship, though your solicitor will need to confirm that on your facts and register the change. If you hold as tenants in common, the missing person's share passes under their will or the intestacy rules, which means working out who is entitled. Our guides on dying without a will and selling inherited property explain what follows.

Does it matter whether we are joint tenants or tenants in common?

Yes, a great deal. Look at the register and the transfer deed. Joint tenants own the whole property together and the survivor takes it on death. Tenants in common own distinct shares that can be left by will. A restriction on the register often signals the second kind.

Either way, a missing owner remains an owner until a court or the law says otherwise. Whether you are asking for a guardian's signature or a death declaration, the first step is the same: get the official copy of the register from HM Land Registry, read it properly, and give it to your solicitor. It shows who is registered, what charges sit on it and whether there are restrictions. Our guide to reading your title register walks through the entries.

Can a court simply order the sale?

Where co-owners hold land on trust, one of them can ask the court for an order for sale under section 14 of the Trusts of Land and Appointment of Trustees Act 1996 (TOLATA). Solicitors describe this as the court's power to order a sale and break a deadlock. The application can be made under the simplified Part 8 procedure in the Civil Procedure Rules, and the court has wide powers, including nominating someone to sign the conveyance for an uncooperative owner.

That is the standard route for a co-owner who refuses. For a missing one, the picture is less clear-cut. The sources I could verify for this guide cover refusing owners, not missing ones, and I would not promise you a quick TOLATA outcome against someone who cannot be served. Ask your solicitor specifically how the court deals with service on a missing defendant and what happens to their share of the proceeds. Do not assume it works the same way as in other countries: the American "partition" cases you find online follow US rules, not ours.

What happens to their share of the money?

This is the question buyers do not ask and judges always do. If a guardian sells, the missing person's share of the proceeds should be protected, not paid to you. A court order will usually say where it goes and what the guardian can do with it. If you are the co-owner who stays, your share is yours after the mortgage and costs, and the missing person's share is held for them.

Think of it like this: the aim of the process is not to get the missing person's money into your pocket. It is to turn a frozen asset into a clean sale and a safe pot for them, whether they return or not. Judges are more relaxed when they can see that clearly.

What if there is a mortgage?

Then the lender is a third party with its own rights. Both borrowers are normally jointly liable, so the lender will not discharge its charge on the title unless it is paid in full from the sale. Ask the lender for a redemption statement early (see our guide to the mortgage redemption statement), and tell them about the situation. Some lenders are surprisingly helpful. They may hold contact details, they will often confirm the balance, and they certainly want the arrears dealt with before the court does it for them.

If you are already behind, say so quickly. A court process can take months, and a lender who knows the plan is more likely to wait than one who finds out from a possession claim. Our pages on selling in mortgage arrears and stopping repossession set out the options.

What should I not do?

Forgery and fraud are not theoretical risks here. Land Registry takes property fraud seriously, and AML checks mean solicitors verify identity at every step. Our guides on property fraud when selling and AML checks explain what they look for. If you cut a corner here, the sale usually collapses at the identity stage, and in a worse case you face a criminal complaint.

How long will it take?

Longer than you want. A guardianship application has to pass a 90-day minimum before it is even made, then be prepared, filed and heard. A presumed-death declaration involves the High Court, mandatory notices and a seven-year threshold. Either way, a realistic plan is months, not weeks, and it is wise to ask your solicitor for a timetable before you commit.

Meanwhile the house still costs you money. Mortgage, insurance, council tax and upkeep carry on. If the property is sitting empty, check your insurer's rules, because many policies restrict cover after a set period of vacancy. Our empty house cost guide covers it, and it is worth reading even if you live there part-time.

Can a cash buyer help?

A cash buyer cannot waive the need for the missing owner's signature. No legitimate buyer can, and anyone who says they can is either mistaken or planning to cut corners. What cash can do is simplify the rest: no mortgage approval, no chain, and a buyer prepared to wait while the court process finishes, and then complete in days.

The pragmatic approach is to start the legal route first and sound out buyers in parallel. Some cash buyers will agree a price conditional on the court order, which gives you certainty once the paperwork lands. Others will not touch it until the order is in hand, and that is fair enough. Be wary of anyone who offers a rapid completion regardless of the missing owner. Our page on cash house buyers and the guide to the best house buying companies explain how to separate serious buyers from time-wasters, and find a buyer shows you how to compare.

If the property is also awkward in other ways, such as unregistered land or a boundary row, tell buyers up front. The more of this you disclose, the fewer surprises there are at exchange. See our guides on unregistered property and selling an unsellable house for how that plays out.

A sensible order of play

1. Get the register and any transfer deed. Confirm exactly who is registered and how you hold the property.
2. Trace seriously and document it. Include any evidence they are alive, in contact with others, or have died.
3. Speak to the lender about the arrears position and your plan.
4. Take specialist advice on which route fits: a guardianship order, a presumed-death declaration, or an order for sale. The fit depends on how long they have been gone.
5. Choose the guardian carefully if you go down that route. A neutral person helps the sale.
6. Prepare the sale pack while the court process runs. Our documents guide helps.
7. Market once you hold the authority, or agree a conditional cash sale if a buyer will wait.

Frequently asked questions

Can I sell my house if my co-owner is missing?

Not on your own signature. All registered owners normally have to sign. You need either to find them, or to get court authority, such as a guardian appointed for their property or a court order, so someone can sign for them lawfully.

How long must someone be missing before I can apply for a guardian?

The court must be satisfied the person was missing throughout the 90 days ending on the day the application is made. There is an alternative where a decision is needed before that period would be met.

Can a guardian really sell the missing person's share?

Yes, if the order gives that power. The Guardianship (Missing Persons) Act 2017 says a guardian's powers may include selling, letting or mortgaging the missing person's property.

How long does a guardianship order last?

Each order must end before four years from the day it is made, but further orders can be made afterwards.

When can someone be declared dead?

The High Court can declare someone presumed dead if they are thought to have died or have not been known to be alive for at least seven years. The applicant must be a close relative or have sufficient interest.

Does this apply in Scotland or Northern Ireland?

The Guardianship (Missing Persons) Act 2017 provisions I checked apply to England and Wales, and the Presumption of Death Act 2013 extends to England and Wales. Scotland and Northern Ireland have their own rules, so you need local advice.

Can I sell to a cash buyer instead?

A cash buyer still needs the missing owner's interest dealt with by lawful means. What cash can do is complete quickly once the authority is in place.

What happens to the missing person's money if the house sells?

It should be protected for them, not paid to you. The court order will normally set out where their share goes and how it is held.

Where to go from here

The honest answer is that a missing co-owner turns a sale into a project. But it is a solvable project. Get the register, trace thoroughly, take specialist advice, and pick the route that matches how long they have been gone. If you want to know what a buyer might offer while the legal side runs, you can compare offers with a free valuation and keep your options open. The wider guides library covers the rest of the journey, and the jargon explainer helps with the legal terms.