After hiking up the hill to see Romeo and Juliet, we walked a short distance to see the house that Wright built for his sister Jane and her husband Andrew Porter. The house was based on the design in a Fireproof House for $5000, an article published in the 1907 Ladies Home Journal. There is an excellent view of Taliesin from this hilltop.
Tan-y-deri is Welsh for "under the oaks."
The house is in the process of being restored. We saw work being done on the flat roof (porch?) and our tour guide told us that the wiring in the house was unsafe now and would be replaced. Although Frank Lloyd Wright is noted for his wonderful custom art glass windows, he did make use of more common leaded glass in some of his earlier houses. You can see typical examples in the upper floor windows here.