People buying a house for the first time are spending about 37% of their take-home pay on mortgage payments, according to the Nationwide.
The figure is well above the long-term average of 30%, the building society said, making it tougher for new buyers to afford a house.
House price growth picked up in the year to July as wages rose, it added.
Prices increased by 2.1% over the year, the fastest pace since December 2022.
Some people were feeling more confident about getting a mortgage as their pay packets went up, Nationwide chief economist Robert Gardner said.
But relatively high mortgage rates and affordability issues also acted as a brake for prospective buyers.
Read More