Pól,
I like how this activity has been planned to access a range of curricular objectives, including Science / Materials – I presume Infants > describe and compare materials, noting the differences in the colour, shape and texture
and 1st/2nd class: begin to explore how different materials may be used in the construction of homes suited to their environments
It could be interesting to survey the local area if any houses are currently under construction. Or, you could use images from Google Maps of the area or historical images from Google Earth to find houses under construction. (see here for a guide: https://www.makeuseof.com/tag/travel-back-time-google-street-view/)
There is this area near to Blackrock where new apartments are being built:
https://www.google.com/maps/@51.8831256,-8.3879657,460a,35y,271.6h,44.82t/data=!3m1!1e3?entry=ttu