Britain's Prince Charles has been given permission to build an eco-friendly house that royal watchers say would be perfect for his older son.

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The London Telegraph said the eco-friendly six-bedroom house would be built on the grounds of the Duchy of Cornwall's Harewood Park Estate near Wales.

A spokesman for Prince Charles told the newspaper the home was designed to be rented out, but royal watchers say they believe Prince William will make the estate his country residence once he gets married, the newspaper said.

The 8,500 square foot house will be feature a rainwater reservoir, a reed bed sewage system, solar panels, wool insulation and a roof made of salvaged Welsh slate.