[shagie]

https://www.dalkita.com/sprinklers-in-single-family-resident...

> Surprisingly enough, sprinklers have actually technically been a requirement in all single family homes per the International Residential Code, since 2006. Regardless of home size, location, or construction type. IRC 313.2 states:

    R313.2 One- and two-family dwellings automatic fire systems.
     An automatic residential fire sprinkler system shall be
     installed in one- and two-family dwellings.

> Period. It's just simply required. Only exception is for alterations or additions to existing building without sprinklers.

[pc86]

Your link seems to suggest the opposite above that quote.

> They base the need on distance to nearest fire house and nearest credible fire hydrant.

So there are obviously situations where SFHs do not need automatic sprinkler systems.

Most of my subdivision was built after 2006; none of the homes have sprinkler systems but there are also fire hydrants every 5 or 6 homes so I imagine that has something to do with it. The fire house is also a ~90 second drive down one street (at the speed they'd be going).

[shagie]

Possibly... and also the next bit:

> So, why don’t we see every newer house since 2006 with sprinklers? Because most jurisdictions amend their local codes to delete this requirement. Only CA, MD, & Washington DC now keep this requirement.

> Most jurisdictions delete this requirement for various reasons, but the obvious one is the uproar it causes from citizens, builders, etc , because with this new requirement, comes increased cost.

So while its in the building code, local codes may relax that.