Market evidence
Property value guides
Learn how different valuation signals fit together, where they disagree and why a useful range is more honest than false precision.
10 practical guides
Start with the question you need to answer.
Each guide separates what the available evidence can show from what still needs an official search, measured design or professional opinion.
How to value a property using comparable sales
Select, adjust and reconcile UK comparable sales by recency, location, property type, floor area, condition and tenure.
Price per square foot explained
Use price per square foot carefully by matching floor-area source, property type, condition and sale date.
Indexed value versus market value
Understand why applying the House Price Index to a historic sale is useful context but not a current market valuation.
How much value does an extension add?
Estimate extension value from the completed target home, local floor-area evidence, room utility, planning risk, condition and local ceiling.
How much value does a loft conversion add?
Estimate loft-conversion uplift through usable added area, bedroom and bathroom utility, local comparables, headroom, layout and planning evidence.
What is a local property ceiling price?
Use the strongest nearby completed sales to test whether additional spend or floor area is likely to be fully reflected in resale value.
Renovation value versus cost
Separate construction cost, gross value created and net equity while accounting for condition, added space, room function and local evidence.
The UK House Price Index explained
Understand HPI geography, property categories, revisions and why index movement is context rather than a property-specific valuation.
Why property sales history can look wrong
Understand address collisions, flats, suffixes, subdivisions, property-type changes, Land Registry revisions and identity mismatches.
Why floor area or EPC data may be missing
Learn why a recent sale may not have a matchable EPC and how address differences, exemptions, timing and property subdivisions affect floor-area evidence.
Evidence standards
See how Propeteer handles uncertainty.
The methodology explains property matching, comparable selection, planning evidence and why no result is not automatically a clear result.