Why a desktop read comes first

Two different questions

A desktop read asks: what is this home likely to be, and what does a home like this usually need? It works from era and construction, from what the public record says about the site, and from what can be seen in aerial and street views and in what is published about the home. Its output is a structured set of expectations and questions.

A physical inspection asks: what is actually there today? It works from access, on the day, with an inspector’s eyes and instruments in the roof space, the subfloor and the wet areas, within the scope and limits the inspector sets out. Its output is observed condition. Reports of this kind go by several names; What is a property condition report sorts them out. Reading a building and pest report explains how to use it.

The desktop read cannot see behind a wall. The physical inspection cannot tell you that the roof was re-sheeted in a different material a decade ago unless someone looked at the aerial history first. They are complements, and complements have an order.

Why the read goes first

• It writes the brief. An inspector pointed at specific concerns, this era’s known weak points, that suspicious patch on the roof, the extension without a visible permit, does more useful work than one asked to “look at everything”. Choosing an inspector covers how to brief one.
• It happens before access does. You can read a home the day you find the listing. Inspections need bookings, access and often a decision to spend: a combined building and pest inspection costs around $500 to $600 in Victoria, and around half of buyers pay for more than one in the course of finding a home, according to the Consumer Policy Research Centre. The read fills the gap when the thinking is actually happening.
• It is cheap to be wrong early. A desktop read that raises a question which the inspection then closes has cost little. An inspection that misses a question nobody thought to ask can cost a great deal.
• It protects judgement. As Why read a home before you buy explains, questions asked before you want the home are better questions.

What a desktop read cannot do

It cannot confirm concealed condition, measure moisture, see inside the roof or under the floor, test services or establish whether a defect exists. It works from evidence that can be out of date or arranged to sell. It can tell you that a home of this age in this place may contain asbestos-containing materials; it cannot tell you whether this one does. Asbestos in the home explains why that distinction matters.

Treating a desktop read as more than it is would be the opposite of the point. Its honesty about limits is what makes it useful as a first step. Wherever a conclusion rests on inference from era and type rather than on something documented or seen, a good read says so.

The sequence in practice

1. Read the home from its address: era, construction, records, overlays, what is visible, what usually comes up.
2. Collect the documents the read points to: the disclosure bundle for your state, permits, certificates, strata records where relevant. In New South Wales that is the contract for sale with its planning certificate and drainage diagram; in Victoria the Section 32 vendor statement; in Queensland the seller disclosure statement; in South Australia the Form 1; in the ACT the vendor’s building and pest reports, which must be available before a home is offered for sale. Western Australia has no mandatory seller disclosure statement and Tasmania no statutory duty to disclose defects, so buyers there have to ask. The state guides on the Section 32, the NSW contract and Queensland disclosure cover these.
3. Brief the inspector with the specific questions, and book the specialist checks the read suggests.
4. Read the report back against the read. Which questions closed, which opened, which remain. That is your list for the negotiation or the decision.