Living Well at Home UKClear, practical guidance for later life
Housing choices

By Does Your Duck Quack

Living with family, annexes and homeshare

Compare moving in with family, building an annexe and homeshare. Plan privacy, costs, permissions, benefits and care funding before changing homes.

Checked: 8 October 2026 · Next review: 8 April 2027 · Applies to: UK, with nation notes
How this guide was prepared

Purpose: conversation guidance · Level: detailed

Checked by: Does Your Duck Quack. Sources are linked below; seek professional advice for individual circumstances.

The short answer

What to do first

Compare moving in with family, building an annexe and homeshare. Plan privacy, costs, permissions, benefits and care funding before changing homes.

Start here: Moving into the main home may be the simplest physical change, but it can leave less private space and blur household responsibilities. An annexe can provide a separate living area while keeping family nearby, although construction, permissions and ongoing costs need careful checking. Homeshare is a different arrangement in which a householder and a person needing accommodation agree to share a home, often with companionship and limited practical help. It is not the same as a regulated care service and should not be relied on for personal care or continuous supervision.

Visual guides

See the decision at a glance

Compare the living options
  1. Move in togetherShare the main home, routines and space; agree privacy and household costs.
  2. Build an annexeCreate separate living space, subject to planning, building and tax checks.
  3. Try homeshareShare a home with agreed companionship and limited practical help.
Before changing a home
  1. 1. Agree boundariesDiscuss care tasks, visitors, private space and how concerns are raised.
  2. 2. Write costs downRecord contributions, repairs and what happens if circumstances change.
  3. 3. Check permissionsAsk the planning authority before building or converting an annexe.
  4. 4. Get independent adviceCheck benefits and care-funding effects before transferring property.

Scope of this guide

This guide helps you understand the options and questions to ask. It is not personal medical, legal or financial advice. Check the official sources for your nation and seek qualified help for high-stakes decisions.

Who this guide is for

Families considering a shared household, a separate annexe or homeshare while balancing independence, care needs and housing costs.

Living together can bring companionship and practical help, but it also changes privacy, money, routines and responsibilities. There are several different arrangements: a relative may move into the main home, a family may create a separate annexe, or a person may share with a matched homesharer. The legal, planning, tax and care-funding consequences depend on the details and the UK nation. Discuss the person’s wishes first, write down expectations and get independent housing or benefits advice before making an irreversible change.

How to approach the conversation

1. Compare the living arrangements honestly

Moving into the main home may be the simplest physical change, but it can leave less private space and blur household responsibilities. An annexe can provide a separate living area while keeping family nearby, although construction, permissions and ongoing costs need careful checking. Homeshare is a different arrangement in which a householder and a person needing accommodation agree to share a home, often with companionship and limited practical help. It is not the same as a regulated care service and should not be relied on for personal care or continuous supervision.

2. Talk about daily life and personal boundaries

Discuss meals, visitors, quiet time, pets, keys, bathroom use, overnight support and how everyone will raise a problem. Be specific about which help is offered and which tasks need paid or professional support. Agree what the person may decide independently, including how they use their room, manage friendships and spend money. If dementia, disability or communication needs are involved, agree how the person can express choices and take part in discussions. Keep a plan flexible so people can revisit it without treating a change of mind as failure.

3. Put money and contributions in writing

Record who pays for household bills, food, repairs, adaptations, insurance, council tax or rates, and how contributions are reviewed. Clarify whether money is a contribution, rent, a loan or payment for work; do not rely on an informal label if the arrangement has legal or benefits consequences. Keep receipts and bank records. If a family member pays for building work, agree ownership and what happens if the person moves, the home is sold or relationships change. Get independent advice before transferring property or savings.

4. Check planning, building and tax rules before an annexe

An annexe may need planning permission, building-control approval or both; permitted development rules depend on the property, work and nation, and local restrictions can apply. Ask the planning department before starting work and request written advice. Council Tax treatment depends on whether the unit is self-contained, who lives there and the applicable national rules. In Great Britain, council-tax discounts or exemptions may apply in some circumstances; Northern Ireland uses domestic rates rather than Council Tax. Ask the local billing authority for a decision in writing before budgeting.

5. Consider benefits, care funding and the home assessment

A move or change in property ownership may affect benefits, housing support or a future social-care financial assessment. If a relative moves into a home, a property disregard may apply in some care assessments, but only where the relevant criteria are met; do not assume the home is automatically ignored. Deliberately giving away an asset to affect care charges can be treated as deprivation of assets. See paying for care with your home and deprivation of assets. Ask the council for a written explanation and get independent welfare-rights or legal advice before transferring ownership or changing a tenancy.

6. Make a homeshare safe and reviewable

If considering homeshare, use a scheme with a clear matching and safeguarding process. Meet the person, check references and identity through the scheme, discuss compatibility and agree the support expected. Put boundaries, costs, privacy, visitors, emergencies, notice and ending the arrangement in a written agreement. The householder should keep access to independent advice and know who to contact if the match is uncomfortable. Homeshare can provide company and limited practical help, but it is not a substitute for assessed home care, nursing or urgent support. Review the arrangement regularly with both people.

Prompts and boundaries

Common questions

Do I need planning permission for a granny annexe?

It depends on the property, proposed work, local restrictions and the planning rules in your nation. A separate annexe may also need building-control approval. Do not assume that calling a space an annexe makes the work permitted. Describe the plans to the local planning authority before work begins and ask for written guidance. Get professional advice if the property has listed status, special restrictions or complex shared access.

Will an annexe have its own Council Tax bill?

Council Tax treatment depends on the layout, how self-contained the annexe is, who lives there and the rules of the relevant billing authority. Some discounts or exemptions may apply, but they are not automatic. Northern Ireland has domestic rates rather than Council Tax, so different rules apply. Contact the local billing authority with the property details and ask for a written decision before relying on a particular cost.

Can living with a relative affect care fees?

It can affect how a council assesses property and other resources, but the result depends on ownership, occupancy, the person’s circumstances and national rules. A relative moving into a home does not automatically make the property disregarded. Giving away a home or savings to reduce care charges can also be considered deprivation of assets. Ask the council for a written assessment and seek independent advice before changing title, tenancy or finances.

Is homeshare the same as having a live-in carer?

No. Homeshare matches people who share a home, usually combining accommodation with companionship and agreed limited help. It is not automatically a regulated personal-care service, a nursing arrangement or guaranteed overnight supervision. Discuss exactly what the homesharer will and will not do, and arrange assessed care separately if needed. Use a scheme with clear safeguarding and a written agreement, and make sure both people can end the arrangement safely.

Differences across the UK

Planning, building standards, council tax and social-care charging differ among England, Scotland, Wales and Northern Ireland. Northern Ireland uses domestic rates rather than Council Tax. Care assessments are devolved and property disregards have specific criteria. A family arrangement or homeshare does not remove the right to an individual needs assessment. Seek independent legal, housing or benefits advice before signing or transferring property.

Primary sources

The publisher checked this guide against the 8 official sources below. This is an editorial source check, not approval by a clinician, lawyer or benefits adviser.

Editorial note: By Does Your Duck Quack.