This comes after Prime Minister Boris Johnson revealed that an agreement had been reached over a new Brexit deal on Thursday.
Buying property in London has become cheaper for a variety of currencies since the EU referendum in 2016.
Homes in Oxford take the longest to sell, staying on the market for an average of nearly five months.
The changed rates come into effect on Wednesday 16 October.
The mutual has reduced rates on its range of fixed rate mortgages for borrowers.
The research by Canada Life was based on the latest Nationwide Building Society house price data.
One key highlight includes the maximum loan for a 75% LTV increasing from £3m to £5m.
The figures seen in August for first-time buyer mortgages represents a year-on-year increase of 0.7%.
One in 20 landlords cited Brexit as a concern.
Protection new business volumes from mortgage brokers also rose year-on-year.