Alongside the new launches, NatWest is making swathes of rate changes.
The average maximum loan size available to first-time buyers was £276,060 in September, up from £230,555 in January.
NatWest becomes the latest high street bank to raise its loan-to-value purchase and remortgage rates.
“These changes really put a focus on higher LTV customers, with our new lower rates available to those looking to purchase, remortgage or switch rates."
The Mortgage Lender has cut rates on its five-year limited edition buy to let products and extended the range .
Barclays is cutting rates across its residential ranges.
Santander for intermediaries has launched new purchase and remortgage deals at 60% and 75% loan to value.
Santander is cutting rates on some of its higher LTV fixed rate deals.
Barclays has announced a raft of cuts across its residential purchase, remortgage and reward ranges.
Coventry for intermediaries has reduced rates on selected mortgages by up to 20 basis points.