STP

STP means a property or development project cannot be sold or valued with certainty because it requires planning permission that has not yet been granted. The seller is explicit about this risk: you are buying a parcel of land or a partially completed project whose final use, density, or extent depends on a decision still pending with the local planning authority. It appears commonly in property listings, surveyor reports, and real estate contracts across the UK and Commonwealth countries.

The term protects both buyer and seller by creating transparent terminology. A residential plot marked STP might be zoned for housing but lack confirmation that a specific number of units will be approved; a commercial site might be STP pending change of use. Without this label, a buyer could claim misrepresentation if outline or full planning consent fails to materialise. Conversely, a seller avoids implied warranty of approval by stating the condition upfront. Mortgage lenders and valuation surveyors treat STP properties with caution, often requiring evidence of an application in progress or a clear pathway to consent before advancing funds.

The practical weight of STP varies sharply. A site with an officer recommendation to approve carries different risk from one facing officer objection. Outline consent already granted is far lower risk than greenfield land with no application submitted. Experienced developers and investors scrutinise the planning history, local policy context, appeal prospects, and officer feedback before committing cash to an STP purchase. A site with high refusal likelihood may carry a substantial discount; one where approval appears routine may trade only marginally below consented values.

STP is often combined with other qualifications. A property might be listed as STP subject to satisfactory survey or STP and subject to environmental assessment. These stack conditions that must be met before completion. In auction catalogues and agents' particulars, STP appears as a flag in property descriptions, forcing the buyer to investigate and price the planning risk themselves rather than relying on the seller's judgment of likelihood.