Buying a home is one of the biggest financial decisions you will make. A pre-purchase building inspection gives you an independent, professional assessment of the property’s condition before you commit. But what does the inspector actually look at?
At Pro-Spect Building Reports, every inspection follows NZS 4306:2005 – the New Zealand Residential Property Inspection Standard. This is not a quick walkthrough. It is a systematic, methodical assessment of the entire property, inside and out. Here is what we cover.
Site and Surroundings
Before we even step inside, we assess the property’s site. This includes the driveway and paths, retaining walls, fencing, drainage around the building, ground levels relative to the floor, vegetation proximity to the structure, and any visible signs of ground movement or subsidence. These external factors directly affect the long-term performance of the building.
Subfloor and Foundation
Where access is available, we inspect the subfloor space. We are looking at foundation type and condition (concrete slab, piles, or perimeter walls), subfloor ventilation, ground moisture levels, evidence of borer or pest damage to timber framing, and the condition of bearers and joists. Subfloor issues are often invisible from inside the house but can indicate serious structural concerns.
Building Exterior
The exterior assessment covers the building envelope – everything that keeps the weather out. We check:
- Cladding condition: cracks, deterioration, gaps, sealant failure
- Windows and doors: seals, flashings, operation, putty condition
- Decks and balconies: structure, waterproofing, balustrade compliance
- Guttering and downpipes: condition, fall, connections
- External joinery and penetrations: any point where water could enter the building
For properties with monolithic (plaster) cladding, we pay particular attention to high-risk areas like window junctions, deck-to-wall connections, and parapets. These are the areas most prone to weathertightness failure in homes built between 1994 and 2004.
Roof
We assess the roof covering (tiles, long-run steel, butynol, membrane), condition and estimated remaining life, ridge and hip capping, flashings around penetrations (vents, chimneys, skylights), and roof drainage. Where safe access allows, this includes walking the roof or using a ladder for close inspection. We note any areas where maintenance or repair is needed.
Roof Space
Inside the roof cavity (where accessible), we check framing condition and connections, insulation type and coverage, evidence of leaks or staining, ventilation, and any signs of pest activity. The roof space often reveals issues that are completely hidden from below – water stains on framing, inadequate bracing, or missing insulation.
Interior
Every accessible room is inspected. We assess:
- Walls and ceilings: cracking, staining, moisture damage, movement
- Floors: levelness, condition, bouncing or soft spots
- Windows and doors: operation, seals, condensation between panes
- Wet areas: bathrooms, laundry, kitchen – looking for moisture damage, tile grout condition, and waterproofing adequacy
- Visible moisture: non-invasive moisture meter readings at key locations throughout the home
Services
We do a visual check of accessible building services including the hot water cylinder (type, age, condition, safety valve), visible electrical (switchboard, wiring type where visible), visible plumbing (supply and waste), and heating/ventilation systems. We are not electricians or plumbers, but we identify obvious defects or items that need specialist assessment.
Moisture Testing
Every Pro-Spect inspection includes non-invasive moisture testing as standard. We use professional-grade moisture meters to take readings at key risk areas throughout the property – around windows, in wet areas, at floor level near external walls, and anywhere visual indicators suggest potential moisture issues. Elevated readings are documented in the report and may lead to a recommendation for further invasive investigation.
What We Do Not Check
It is important to understand the scope of a standard building inspection. Under NZS 4306:2005, the inspection is a visual assessment of accessible areas. We do not:
- Move furniture, stored items, or floor coverings
- Open up walls or undertake destructive testing (unless separately arranged as invasive moisture testing)
- Test electrical systems, plumbing, or gas fittings (these require licensed tradespeople)
- Assess compliance with building consents or resource consents
- Provide valuations or cost estimates for repairs
If we identify areas of concern that fall outside the scope of a standard inspection, we will recommend the appropriate specialist assessment.
Why the Inspector Matters as Much as the Inspection
Building inspections in New Zealand are unregulated. Anyone can call themselves a building inspector. That means the quality of your report depends entirely on who writes it.
At Pro-Spect, every inspection is carried out by a BOINZ Accredited Building Surveyor with 25+ years of hands-on construction and surveying experience. Our reports comply 100% with NZS 4306:2005, are backed by full professional indemnity insurance, and are accepted by all major NZ banks and insurers.
That is not a marketing claim – it is a professional standard that fewer than a handful of inspectors in the Bay of Plenty can demonstrate.
Ready to Book?
If you are buying a property in Tauranga, Mount Maunganui, Papamoa, Te Puke, or the wider Bay of Plenty, get in touch to book your pre-purchase building inspection. Reports are typically delivered within 24-48 hours.
Contact us to book your inspection or call 07 985 9532.
