Renovating abroad: contractors, permits, supervision

Renovating abroad combines two difficulties: you do not know the local rules, and you are not there to see what happens. Most renovation stories that go wrong share the same causes: work started without a permit, a contract that says too little, money paid ahead of the work, and nobody checking on site. This guide sets out the steps in order. It is informational and not legal, tax or construction advice, and local rules vary even within one country. If you are buying a property that needs work, see also total cost of ownership abroad and the pre-purchase checklist.

Start with the scope: structural or cosmetic

The first question decides everything else. Cosmetic works (painting, floors, kitchen and bathroom fittings, replacing doors) usually need little or no formal approval. Works that touch structure, load-bearing walls, the facade, windows facing the street, the layout, plumbing risers, roof, extensions or a change of use usually need an architect or engineer, a permit and sometimes the consent of other owners. Do not rely on a contractor who says "we do it every day, no need for papers". The fine, an order to undo the work or a problem at resale falls on the owner.

Permits and communal consent

Check two layers.

• The municipality. Depending on the works and the country, a licence, a prior notification or a simple declaration may be needed, often with a local construction tax, and often a signed project from a registered professional. Ask the town hall or a local architect which category your works fall into, and get the answer in writing.
• The owners' association. In a building with shared ownership, work on common parts (facade, structure, roof, shared pipes, windows and balconies as seen from outside) normally needs the association's approval, and noisy work may be limited by building rules and hours. Read the building statutes and get minutes of any approval.

Also check whether the building is in a protected area or historic centre, where extra approvals and materials rules may apply.

Country notes (hedged)

Spain. Works on dwellings may require a municipal licence or a prior declaration, and a construction tax usually applies; check which one applies in your town. Owners' association consent is needed for work on common elements. The Spanish Tax Agency explains that a reduced 10 percent VAT rate can apply to certain renovation works on dwellings under conditions; check these with a Spanish adviser before you rely on it. See Spain: resale property checklist.

Portugal. Works are typically divided into those exempt from prior control, those needing prior notification and those needing a municipal licence, and a technical manager is often required for larger works. We have not verified current details; ask the municipality (câmara municipal) and see Portugal: resale property checklist.

Greece. Works are usually categorised by size and type, with an engineer submitting the application, and building illegality is a recurrent problem in older properties. Check the status of the property before you start; see Greece: resale property checklist.

Italy. Works are commonly classed by intensity, with a different filing for each, and a licensed technician files it; the consent of the condominium is needed for common parts. Some tax incentives for renovation exist or have existed, and eligibility, in particular for non-residents, changes often; verify with an Italian commercialista. See Italy: resale property checklist.

Choosing a contractor

• Get at least three written quotes for the same defined scope, and ask for a breakdown by item and trade. The cheapest quote with the shortest description is a warning sign.
• Check registration, tax number, insurance and, where applicable, licences. Ask for addresses of finished jobs you can visit or phone owners about.
• Be careful with contractors who need cash, who will not issue invoices, or who propose to "save VAT" without paperwork. That removes your protection and can create tax problems.
• Prefer a firm that can communicate in a language you read and that offers a named site manager.

The contract

A short contract with these items is better than a handshake:

• scope, drawings and specification of materials, including brands and grades;
• price, what is included and excluded, and how changes ("variations") are priced and approved in writing;
• timetable with milestones, and the consequence of delay;
• payment schedule linked to completed stages;
• insurance, permits and who obtains them;
• warranty period for the work and for materials, and who is responsible for defects;
• a retention (a part of the price held back until final acceptance);
• cleaning, waste removal, and handover documents such as certificates and warranties.

Have a local lawyer read it. See also how to verify a developer abroad for the logic of checking a builder.

Stage payments

Never pay the full price ahead. A common pattern is a modest advance, then payments after each verified stage (demolition, rough plumbing and electrics, plastering, tiling, fitting, final), and a final part after the snag list is closed. Pay by bank transfer to the company's account, not in cash, and keep each invoice. Before you release a payment, have your supervisor confirm in writing that the stage is complete.

Project manager or do it yourself

Self-managing works for small, cosmetic jobs if you can visit often and have a local helper. For larger works consider a project manager or an architect who supervises the site for a fee, checks quality and approves payments. Their cost is real, but it is often smaller than the cost of one big error. Make sure they work for you and not for the contractor, and that you know how they are paid. Ask for weekly photos, a short written report and a video call on site.

Time, cost and hidden defects

Overruns are normal: permits take longer than quoted, materials arrive late, and opening walls reveals problems. Add a contingency, commonly discussed as a meaningful share of the budget, and keep it separate; we cannot give a universal percentage. Old buildings carry risks that are not visible: damp, old wiring, asbestos or lead in old materials, poorly done earlier works, and structural cracks. A survey before you buy, and further inspection when walls are opened, can reduce surprises. If you find serious defects after the purchase, document them and get advice before continuing.

Tax and VAT (hedged)

VAT on building work depends on the country and the type of work; some countries apply reduced rates to renovation of dwellings under conditions, others do not. Renovation costs can sometimes be considered when you sell, if documented, or when calculating rental income, but the rules differ widely and may depend on whether you are a resident or a business. Keep all invoices in your name, and ask a local tax adviser what is deductible or relevant in your case and in your country of residence. For selling later, see how to sell property abroad.

FAQ

Do I need a permit for a new kitchen and bathroom? Often not for cosmetic work, but moving plumbing, removing walls or changing the facade usually does. Ask the municipality.

Can I start work before the permit arrives? Generally not. Unlicensed works can lead to fines, orders to undo them and problems at sale.

How much should I pay in advance? A modest amount, with the rest tied to verified stages. Avoid large advances, especially to someone you cannot check.

Is a project manager worth it? For anything structural or over a small budget, usually yes, because mistakes are costly and you cannot see the site.

What if the contractor disappears? Keep the contract, invoices and transfers; send a written notice to the address in the contract and consult a local lawyer quickly. A retention and stage payments limit the loss.

How we help

D.H. Realting is a trilingual platform (Russian, Polish, English) that finds properties and coordinates independent local lawyers, architects and tax advisers. We can help you prepare questions and find local specialists for the permit, the contract and the supervision. This text is informational and is not legal, tax or investment advice; verify the current rules with local professionals.