Wi-Fi from the home to the home office in the garden 31 meters away

Hi, I wonder if you can help – we are in Barford just outside Warwick CV35 8DP

We have got decent broadband in our house and would like to extend it into the home office in the garden 31 meters away.

Ideally we don’t want to dig the lawn up and put an ethernet cable underground.

Could you advise on other possible solutions?

Thanks for your help.