Start with the property and the work
The early withdrawal route for housing applies to owner-occupied property. The Federal Social Insurance Office describes that framework, and UBS lists renovation or conversion as possible uses for an owned home. That does not make every item in a mixed quote eligible. Give your foundation the ownership documents, explain how you use the property and describe the actual work. Ask which items it will accept and what evidence it needs. The label “renovation” alone does not tell the provider what it would be financing.
A mixed quote calls for two budgets
Suppose insulation work costs CHF 22,000, replacement windows CHF 9,000 and freestanding furniture CHF 4,000. The full project costs CHF 35,000. As a cash planning exercise, first model the foundation accepting only the first two lines, which total CHF 31,000. That is a scenario, not an eligibility decision. If the foundation approves less, or you choose to withdraw less, the difference still needs financing. Ask the contractor for separate figures if several unrelated items are bundled together in the quote.
Approval and availability are different milestones
If the contractor wants CHF 8,000 before starting, ask when the foundation can pay, who receives that payment and which documents it needs at each stage. Check the date of any previous early withdrawal for housing: these withdrawals are at least five years apart. If you are close to reference age, ask whether the rules for taking only part of your arrangement change. Do this before treating the expected payout as cash available for the deposit.
Allow for a tax bill and a contingency
Geneva says a qualifying early pension withdrawal for housing is taxed as a lump sum and must be declared. Keep a line for that tax and a separate contingency for the building work. If the property will temporarily be uninhabitable, explain the dates and your plans for continuing to use it as your main home to the foundation. Do not make a binding commitment based on an assumption about paperwork.
Before starting the work
Send the itemised quote to the foundation and agree a schedule with the contractor. Compare the withdrawal with keeping your savings invested and with an alternative your bank can actually offer. Withdrawing will leave less in your retirement plan. Compare what you can access by each deadline, using the costs and cash you can substantiate, and decide what you would do if one payment were delayed.
Sources & further reading
OFAS / FSIO — Le troisième pilier