Yes, you can sell a home when a co-owner lacks mental capacity, but someone must have the correct legal authority to act for them. Being their spouse, child or fellow owner does not provide that authority automatically. Joint ownership also creates a separate question about who can legally sign the transfer and receive the sale proceeds.
For families dealing with dementia, a stroke or brain injury, the safest first step is to establish capacity, check any existing power of attorney and ask a conveyancing solicitor to review the ownership. This guide explains the position in England and Wales.
Start with capacity, not the diagnosis
The Mental Capacity Act 2005 requires capacity to be assessed for the particular decision at the time it needs to be made. A dementia diagnosis does not, by itself, establish that someone cannot decide whether to sell their property.
The question is whether an impairment or disturbance affecting the mind or brain prevents the person from understanding, retaining, using or weighing the relevant information, or communicating their decision. They must first receive appropriate help to decide.
That could mean discussing the sale when they are most alert, explaining the financial consequences in accessible language or using communication support after a stroke. An unwise decision alone does not prove a lack of capacity.
Where capacity is uncertain, ask the solicitor what assessment evidence they need. A medical or specialist assessment may be appropriate. If the person retains capacity for the sale decision, they should make it themselves with support.
Who has authority to sell a home?
The correct route depends on the documents already in place and the powers they provide.
| Situation | Authority needed | Typical route |
|---|---|---|
| The owner can make the sale decision with support | Their own valid instructions and signature | Ordinary conveyancing, with appropriate support |
| A registered property and financial affairs Lasting Power of Attorney exists | An attorney acting within the document's powers | Solicitor checks the document, restrictions and trustee position |
| A valid older Enduring Power of Attorney exists | Authority under that document, with registration where required | Specialist review before proceeding |
| No suitable power of attorney exists and capacity has been lost | Court of Protection authority | Property and financial affairs deputyship or an appropriate specific order |
| A joint owner's trustee functions cannot lawfully be exercised | A valid trustee arrangement, potentially requiring court permission | Conveyancer identifies the necessary appointment or application |
Using a Lasting Power of Attorney
A property and financial affairs Lasting Power of Attorney (LPA) can authorise an attorney to deal with a home sale. A health and welfare LPA cannot.
An LPA must be registered with the Office of the Public Guardian (OPG) before use. Someone who still has the necessary capacity can make one using the forms described in the GOV.UK power of attorney guidance. The process includes a certificate provider, signatures in the correct order and an application for registration.
If the person has already lost capacity to make an LPA, their family cannot create one for them. An existing signed but unregistered document should be checked promptly, as registration may still be possible.
Before relying on an LPA to sell a home, the solicitor will check restrictions, how multiple attorneys must act and whether the proposed transaction falls within their authority. They must also check the separate trustee requirements for jointly owned land.
Attorneys must act in the owner's best interests. They cannot treat the owner's share as family money or distribute the proceeds as an early inheritance.
Applying for deputyship when there is no LPA
Where no suitable authority exists, a relative or another appropriate person can apply to the Court of Protection to become a property and financial affairs deputy. The application normally includes evidence about capacity, financial information and notification of relevant people.
The court order determines the deputy's powers. Do not assume appointment automatically authorises every property transaction. Tell the court about the proposed sale and ask your solicitor whether specific permission is required.
Sometimes an application for a particular decision is more suitable than an ongoing deputyship. Urgent applications are also possible where there is a genuine immediate risk, but an urgent route is not a guaranteed shortcut for an ordinary sale.
If a proposed buyer is the attorney, deputy or their relative, obtain specialist advice before proceeding. Conflicts of interest may require separate court approval, even where the family agrees on the price.
Joint tenants, tenants in common and the two-trustee issue
What the ownership type changes
Beneficial joint tenants own the beneficial interest together, with survivorship applying on death. Tenants in common hold identifiable beneficial shares, which need not be equal and can pass under a will.
Neither arrangement lets a capable co-owner simply sign away the other person's interest when they lose capacity. The solicitor should inspect the Land Registry title, any declaration of trust and relevant restrictions rather than relying on family recollection.
Ownership also affects how the money is divided. A sale does not automatically mean that every registered owner receives an equal share.
Why an attorney or deputy may not be enough
Joint owners normally hold the legal title as trustees. In a usual sale involving beneficial interests under a trust, purchase money must be paid to at least two trustees, or a trust corporation, so the buyer can take the property free of those interests. This is known as overreaching.
Authority to manage someone's finances is not automatically the same as authority to perform their trustee functions.
Depending on the circumstances, a suitably authorised attorney may be able to act for the owner. In other cases, an additional or replacement trustee is needed. A deputyship order alone should not be assumed to resolve this.
Court of Protection permission may be required where a replacement appointment involves a trustee who lacks capacity and also has a beneficial interest. A family member cannot solve the problem simply by finding another adult to witness or sign the transfer.
Ask the conveyancer to settle this before exchange of contracts. Identifying the issue after a buyer has arranged their move can cause avoidable delay.
Likely timescales and costs
When planning to sell a home, separate the time needed to establish authority from the time needed for marketing and conveyancing. A buyer being ready does not remove the legal steps.
GOV.UK guidance gives an LPA registration estimate of around 8 to 10 weeks where there are no mistakes. Check the current estimate before planning completion. Objections, errors or missing information can extend the process.
Deputyship normally takes several months rather than weeks. Capacity evidence, notification requirements, court workload and any additional trustee application all affect timing. There is no reliable single completion date for every family.
For budgeting, published government fees include:
| Item | Published fee |
|---|---|
| Registering one LPA | £92 |
| Court of Protection deputyship application | £421 |
| Hearing, if required | £259 |
| New deputy assessment | £100 |
| Annual general supervision | £320 |
| Annual minimal supervision, where applicable | £35 |
Check the current deputyship fees and financial assistance rules before applying. Reductions or exemptions may be available. Professional advice, conveyancing, additional applications and any required security bond can add costs beyond the court fees.
A solicitor can usually begin gathering title documents, valuations and mortgage information while authority is being resolved. That preparation does not authorise them to exchange contracts prematurely.
Establishing that the sale is in the owner's best interests
A best-interests decision should consider the person's wishes, beliefs, past statements and present feelings, alongside their housing, care and financial needs. Consult appropriate relatives and carers without treating a family majority as a substitute for the legal decision-maker.
Record why the proposal is suitable. Useful evidence includes independent valuations, care costs, mortgage balances, likely sale expenses and realistic alternatives. Consider whether retaining the property, arranging support at home or delaying a sale would better meet the person's needs.
When an attorney or deputy decides to sell a home, a transparent record of the marketing and offer-selection process helps explain why the transaction benefits the owner. The highest headline offer is not necessarily the strongest if the buyer cannot proceed, but a discount needs a defensible reason.
Keep the owner's proceeds identifiable and properly accounted for. Do not use their share to pay another family member's debts without lawful authority.
Our guide to property decisions after a serious illness explores the wider housing and financial questions that can arise alongside the legal process.
Check care funding before deciding to sell
A move into care does not automatically mean the home must be sold immediately. Ask the local authority for a care-needs assessment and a financial assessment before committing to a transaction.
Whether the property counts
England and Wales have different charging rules, capital limits and eligibility conditions. The property may be disregarded where a spouse, civil partner or another qualifying person continues to live there. A temporary care-home stay can also be treated differently from permanent residence.
A 12-week property disregard may apply when someone first enters permanent residential care, subject to the relevant conditions. A deferred payment agreement may allow eligible care costs to be secured against property and repaid later. Interest and administration charges can apply, and joint ownership may complicate the security arrangements.
Ask whether NHS Continuing Healthcare funding should be considered. Eligibility depends on assessed health needs, not simply a particular diagnosis, and qualifying funding is not means-tested.
How a sale changes the assessment
Only the person's beneficial interest is relevant to their resources, not automatically the entire jointly owned property. Valuing a share for care charging is not necessarily the same as taking a percentage of the whole property's vacant-possession value.
If you sell a home, the owner's proceeds may become assessable capital. Ask for a written explanation of the consequences before exchange, especially if another owner still needs somewhere to live.
Giving away a share or transferring money to relatives can raise deprivation-of-assets issues. A power of attorney does not make such transfers automatically lawful or protect them from care-funding scrutiny.
Preparing the sale without creating unnecessary pressure
Choose a conveyancer who understands both mental capacity and trusts of land. Ask them to identify the authority needed, the trustee arrangements and any court application before you agree to a binding deadline.
Gather the title information, mortgage details, LPA or court order, ownership agreements and evidence supporting the best-interests decision. Obtain realistic valuations and a clear estimate of the owner's net proceeds after secured debts and sale costs.
You may be able to arrange valuations and discuss marketing before every legal step is complete. However, tell everyone involved what remains outstanding and take legal advice before accepting contractual commitments. Avoid promising a completion date based only on an expected court decision.
If a move into care is involved, plan accommodation, access to belongings and the moving day around the person's needs. Make an inventory before clearing the property and obtain authority before selling valuable possessions. If care staff request identification on clothing, check their laundry requirements before ordering custom woven clothing labels.
Where legal complications are making the property difficult to sell, understanding the options for a problem property sale can help you separate a solvable obstacle from an unsuitable sales arrangement.
Getting advice and checking any firm you approach
For free information, Age UK can help with powers of attorney, care funding and later-life decisions. Families in Wales can also approach Age Cymru. Citizens Advice can explain legal and financial options and help identify further support. Specialist legal advice is still needed for the sale authority and trustee arrangements.
Before signing with a property firm, ask for their legal name and written terms. Check their membership number through The Property Ombudsman's member search, their data protection registration through the Information Commissioner's Office (ICO) register and their record at Companies House. These checks do not replace scrutiny of the agreement.
Faster Property Solutions has operated since 1998, is a member of The Property Ombudsman and is ICO registered under ZA578580. We are not a property buyer or estate agent. Where selling is appropriate, we arrange a sale at full market value through a bespoke joint venture, with no homeowner fees and all legal costs covered.
Any proposed arrangement must still fit the owner's best interests and the attorney's or deputy's authority. Independent legal scrutiny and any necessary court permission come before signing. Your first contact is a dedicated team member who listens and connects you with the right specialist.
Frequently asked questions
Can I sell our jointly owned house if my spouse has dementia? Potentially, yes. First establish whether your spouse can make the sale decision with support. If they cannot, suitable legal authority is needed, alongside a check of the trustee arrangements. Marriage alone does not let you sign for them.
Can we make an LPA after someone has lost capacity? Only if they still have capacity to make that particular LPA. If they no longer do, the family cannot create one on their behalf. Court of Protection authority may be needed instead.
Does a registered property and financial affairs LPA always allow a sale? No. Restrictions, the way attorneys are appointed, conflicts of interest and the separate trustee rules can affect what is permitted. A conveyancer should check the document and title before commitments are made.
Must we sell a home immediately to pay care fees? Not necessarily. Property disregards, deferred payment arrangements and NHS funding may affect the position. Ask the local authority to assess the circumstances and explain the applicable rules in England or Wales.
Can the family buy the owner's share? Possibly, but this creates a potential conflict of interest, particularly where the buyer is an attorney, deputy or their relative. Independent valuation alone may not be sufficient. Obtain specialist advice about court approval before agreeing terms.
Discuss the options before committing to a sale
If you are unsure whether to sell a home, first clarify the person's needs, the available legal authority and the care-funding position. Faster Property Solutions can discuss whether a bespoke property solution is appropriate, without replacing the independent legal advice this situation requires.
There is no obligation and no pressure. If selling is not your best route, we will advise you accordingly. The earlier you contact us, the sooner we can discuss the options available to you. Please call 0800 324 7949, our lines are open 24 hours a day, 7 days a week.