What is a pre-renovation survey?
A pre-renovation survey in Portugal is an inspection of a property’s visible condition before contractors begin renovation work. It creates a clear condition record of the areas that can be seen and accessed during the visit, including existing cracking, settlement, visible defects, and the condition of accessible infrastructure and installations.
The survey gives the property owner a structured starting point before the renovation begins. It can be used alongside the wider decisions and preparation explained in our home renovation inspection guide so that the condition survey and the planned work are considered together.
When should you book a survey before renovation?
The survey should be completed while the property still shows its existing condition. The most useful time is after the renovation scope has been discussed but before contractors begin removing finishes, opening walls, or installing new materials.
Before contractors enter the property
Completing the photographic survey before work begins creates a consistent record of the property at one point in time. Once demolition or preparation work starts, it may no longer be possible to distinguish an existing condition from an area changed during renovation.
Before walls, floors, and ceilings are altered
Existing cracks, surface movement, staining, damaged finishes, and visible installation conditions should be documented before they are covered, removed, repaired, or replaced. This makes the resulting property condition report clearer and more useful for planning.
While the renovation scope is being prepared
Owners who need a wider plan for improvements, priorities, and future upgrades can also review the Renovation Passport service which serves a different purpose from the pre-renovation condition record.
Has renovation work already started?
Contact InspectOS before booking. The inspection can document only the conditions visible at the time of the visit. It cannot recreate the original condition of surfaces or areas that have already been removed, covered, or altered.
What does the pre-renovation survey cover?
The engineer follows a consistent route through the client’s property and records visible conditions in the accessible areas included in the booking. The inspection focuses on establishing the property’s existing condition before work begins.
- Dated photographic documentation of accessible rooms and relevant surfaces
- Existing cracking, settlement, and other visible signs of movement
- Visible defects, damaged finishes, staining, and areas of deterioration
- The visible condition of accessible infrastructure and installations
- Location and description of the conditions recorded during the visit
If the visible condition suggests a specific damp or infiltration concern, a dedicated Moisture Inspection may be more appropriate for investigating that issue in greater detail.
Where cracking or movement indicates that a specialist structural assessment may be needed, the owner can consider a Structural and Seismic Assessment as a separate service.
What will the property condition report contain?
After the visit, the inspection findings are organised into a pre-renovation property condition report. The report provides a structured record that the owner can review before contractors begin work.
- A dated photographic record of the conditions observed during the visit
- Descriptions of existing cracking, settlement, visible defects, and deterioration
- A record of the visible condition of accessible infrastructure and installations
- Clear location references so that findings can be connected to the relevant room or area
- A technical condition report signed by an engineer registered with the Ordem dos Engenheiros
The report is delivered within 48 hours after the inspection. The standard service starts at €710, and the property visit can take up to three hours depending on the size and accessible areas.
from €710 · Up to 3 hours on-site · Report delivered within 48 hours
Book a pre-renovation surveyWhat is the difference between a pre-renovation survey and a snagging inspection?
A pre-renovation survey records an existing property before renovation starts. A Snagging Inspectionchecks a completed new-build property before key handover. The services therefore take place at different stages and answer different questions.
| Comparison | Pre-renovation survey | Snagging inspection |
|---|---|---|
| When it happens | Before renovation work begins | After construction is completed and before key handover |
| Main purpose | Record the existing visible condition | Identify defects in completed new-build work |
| Typical property | An existing home or apartment about to be renovated | A newly built or newly completed property |
| Main output | Pre-renovation property condition report | List of defects in finishes, systems, and completed work |
Owners should choose the service according to the stage of the property. The pre-renovation survey establishes the condition before work; snagging checks the quality of work after construction has been completed.
What are the limits of a pre-renovation survey?
The report must be read as a record of the conditions that were visible and accessible on the inspection date. Keeping these limits clear prevents the service from being mistaken for a different type of specialist investigation.
- The survey covers only the client’s property included in the booking
- Hidden areas behind finishes, furniture, or inaccessible construction cannot be recorded
- The inspection cannot recreate conditions that were altered before the visit
- Specialist diagnostic investigations are not included in the standard condition survey
- The report records observed conditions but does not determine responsibility for future events
If a visible finding requires deeper investigation, InspectOS can direct the owner towards the relevant specialist inspection rather than extending the pre-renovation survey beyond its intended scope.
How should you prepare for a pre-renovation property inspection?
Preparing the property before the engineer arrives helps make the photographic documentation complete and keeps the inspection focused on the areas relevant to the planned renovation.
- Book the survey before demolition, removal, or installation work begins
- Provide the address and a short description of the planned renovation
- Make the relevant rooms and circulation areas accessible
- Move small objects that block important walls, floors, or installations where practical
- Share available plans or information that helps identify the areas included in the works
- Tell the inspector if any part of the property has already been altered
A prepared property allows the engineer to spend the visit documenting conditions rather than waiting for access. This supports a clearer photographic record and a more useful report within the standard inspection time.