Over seven million owners have chosen not to have a survey completed on their current property - with half of them regarding a mortgage valuation as being sufficient.
This claim comes from Churchill Home Insurance which says buyers are scaling back on the level of surveys completed on their property pre-purchase and often choosing to go down the cheapest-possible route.
Research for the company was conducted amongst 2,000 adults during June, and follows up previous surveys.
The number of owners having at least a base level survey has actually increased over time, from 63 per cent 20 years ago to 91 per cent in the last 12 months, the firm says.
However, the number of owners having the comprehensive building survey has reduced significantly from 28 per cent 20 years ago to just six per cent in the last 12 months.
More than half of those who needed major work doing to their property within a year of moving in said the issues were serious enough to have influenced their purchase, had they had prior knowledge.
Separate research for Churchill, amongst surveyors, reveals some as saying their clients opt for cheaper assessments of their home because they want to save money throughout the purchase process.
The surveyors questioned said the three most common problems with a property that wouldn’t be detected unless buyers had a comprehensive building survey were damp, problems with the roof structure, and subsidence.