Existing Use and Future Potential: Appraisal Questions for Sellers

Separate present utility from an untested possibility

Existing use is the accommodation, land, access and amenity that can be inspected and described now. Future potential is different: it may depend on a planning scheme, overlay, title restriction, easement, minimum garden requirement, design response, service capacity, permit, finance and construction feasibility. A property can be highly useful in its current form even when no future project has been investigated. The appraisal should make that distinction visible rather than combining both ideas into one optimistic description.

Ask the agent to explain which part of the appraisal range is supported by recent sales of comparable existing homes. If a different buyer group might investigate redevelopment, extension or another use, ask what current evidence supports mentioning that possibility at all. A planning property report can identify zones and overlays, but it does not establish that a proposal will be approved. The appraisal should never treat a generic control or neighbouring project as permission for the subject property.

• Current property: document what exists and how it is used.
• Possible project: identify every assumption that remains to be tested.
• Comparable evidence: separate existing-home sales from other site types.
• Campaign wording: use no claim broader than the verified evidence.

Ask what document supports each future-use statement

A seller may have an old planning permit, concept drawing, survey, correspondence, endorsed plan or prior application. Each document has a different status, date and scope. It should be reviewed by the appropriate professional before it affects the appraisal or advertising. A concept is not an approval, an expired or amended permit may not support current claims, and a nearby development does not prove that the same response is available on another title.

Use a simple evidence register. Record the statement being considered, the source document, its date, the person qualified to interpret it and any condition or limitation. If no reliable source exists, label the idea as unverified and leave it out of factual campaign copy. This discipline protects the seller from basing expectations on a vague possibility and gives serious buyers a clearer path to conduct their own enquiries.

Check how comparable sales were selected

A sale of a renovated family home, a cleared development site and an older dwelling on similar land may attract different buyers and reflect different costs, risks and timelines. They should not be blended without explanation. Ask whether the agent is comparing the existing home with similar accommodation, the land with genuinely similar sites, or both through separate evidence sets. The answer should show which sales are primary and which are only contextual.

Where future potential is uncertain, a precise numerical uplift can create false confidence. A better appraisal explains the boundaries of the available evidence and uses a range appropriate to the uncertainty. It should also identify what new information could change the reasoning, such as a current survey or planning advice. A formal valuation obtained for another purpose may use a different scope and should not be represented as an agent's marketing appraisal.

• Ask whether each comparable sold as a home, a site or another product.
• Check dates, location, land attributes and the status of improvements.
• Request a qualitative explanation instead of unsupported dollar adjustments.
• Treat asking prices and uncompleted campaigns differently from settled sales evidence.

Test the effect of cost, time and buyer uncertainty

Even where a future use appears possible, buyers may allow for professional fees, approvals, holding time, design work, construction risk and their own return requirements. An agent should not estimate those matters as though providing planning, building or financial advice. The appraisal can instead acknowledge that a buyer may test feasibility and that uncertainty can affect how much weight the market gives the idea.

Ask a counterfactual question: if the future-use possibility were removed, what evidence would support the current home? Then ask what verified evidence, if any, makes the property distinct from that baseline. This approach reduces the risk of paying attention only to the most exciting interpretation. It also lets the seller decide whether obtaining additional professional information before launch is worth the time and cost, without implying that more documents will necessarily increase the result.

Keep campaign language conditional and accurate

Advertising should not state or imply that land can be subdivided, developed, extended or used in a particular way unless the claim is supported and appropriately qualified. Words such as potential, subject to approval and opportunity do not cure a misleading overall impression. Images, overlays, plans and headlines should be reviewed together because the combined presentation can communicate more certainty than an individual disclaimer.

If the seller chooses to mention a verified planning fact, the factual source and date should be retained in the campaign file. Buyers should be encouraged to make independent enquiries, but that invitation does not replace the seller's obligation to ensure the representation is accurate. Where legal or planning interpretation is required, the conveyancer, property lawyer, licensed surveyor, planner or council should guide the wording before publication.

• Do not use an unapproved concept image as though it depicts an available outcome.
• Avoid bedroom, dwelling or lot counts that depend on future consent.
• Keep source documents and approval dates with the marketing file.
• Recheck a claim if a control, document or proposal changes.

Use six questions to compare appraisals

Ask each agent: What does the property offer today? Which settled sales best support that view? What future-use statement is being considered? Which current document supports it? Who has interpreted that document? What would the appraisal look like if the possibility were unavailable? Consistent questions make it easier to compare reasoning, especially when one appraisal carries a higher headline figure based on a more speculative premise.

The purpose is not to remove all uncertainty; property markets and planning decisions cannot be reduced to certainty. It is to make the uncertainty explicit and keep the seller's decision grounded. An appraisal remains an informed estimate, not a formal valuation or promise. Before relying on future potential, obtain current address-specific advice and ensure the contract, vendor statement and campaign describe the same property position.