Can you move in before the sprinkler final? Certificates of occupancy, the sprinkler acceptance, and the half finished system in a DC rowhouse

The renovation ran four months long. The lease on the apartment ends Friday, the movers are booked, and the sprinkler system has been in the ceilings since August with no final inspection on the calendar. The general contractor says it is fine to move in. The sprinkler contractor says the system is live. The question we get is whether DC lets you, and the honest answer depends on what kind of house it is, what the permit required, and what you are willing to carry until the inspector comes.

What the sprinkler final is

A residential sprinkler job in DC gets two looks from the inspector. The rough happens with the pipe exposed, before drywall, and the contractor pressure tests the system while the inspector can see every joint. The final happens when the house is finished. Heads are in with escutcheons on, the riser is complete with its gauges and placard, the backflow has been tested, the main drain and the inspector's test are run, and the contractor hands over the material and test certificate. The permit timeline article walks the sequence, and the punch list article lists what to check before paying the balance.

A system that passed the rough and has its valve open works. Water is in the pipe, the heads are rated, and a fire would open them. What the final adds is the record that says so, and the record is what every other party in your life is going to ask for.

A single family rowhouse

DC does not issue a certificate of occupancy for a house occupied as a single family dwelling. That surprises people who moved from the suburbs, where a C of O or a use and occupancy permit closes every job. In the District the gate for a single family rowhouse is the building permit itself, which stays open until every inspection on it is passed and the permit is closed out. Nobody stands at the door on moving day.

So you can move in. What you move in with is an open permit, and an open permit has a way of resurfacing. A buyer's title search finds it. A refinance appraisal asks about it. A future permit for a deck or a kitchen cannot issue cleanly on top of it. The open permit article covers how an old one gets closed, and it is a longer road than scheduling the final while the contractor is still answering the phone.

A house with a rental unit, a two flat, or a condo

The rules change the moment the house is anything other than one family. A rowhouse with an English basement apartment, a two unit conversion, and every condo building needs a certificate of occupancy, and DOB issues it only after the finals are passed, the fire inspections among them. Until it issues, the apartment cannot legally be rented, the basic business license for the rental cannot issue, and a lease signed in the meantime is a lease on an unlicensed unit. The ADU article and the landlord rules article both start from this point.

In practice this means the owner can move into the upper floors of a two unit house while the basement unit waits, because the owner's own occupancy is not what the C of O controls. The tenant cannot move in. And since the sprinkler system covers the whole house and the final is one inspection, the fastest route to the rental income is the fastest route to the sprinkler final.

What is not done on a half finished system

Before you sleep in a house with an unaccepted system, confirm four things yourself. The control valve at the riser is open, and the gauge above it reads street pressure. The riser gauge article shows what to look for. Every head has a head in it, meaning no plugs or caps left from the pressure test and no missing escutcheons. The contractor has given you a copy of the hydrostatic test certificate from the rough. And if the system has a flow alarm, it is wired, or you know that it is not.

The valve is the one that bites. Systems are drained and closed for trim work, for the painter, and for the final drywall patches, and a contractor who left on Thursday to come back after the inspection may have left it closed. A closed valve is a house with pipe in the ceiling and no sprinkler system. Check it, and check it again after any trade has been in the cellar. The shutoff article covers how long a system can be down and what to do while it is.

The closed ceiling problem

The most expensive version of this story is the house where the general contractor closed the ceilings before the sprinkler rough was inspected. The inspector cannot see the pipe, the drywall is painted, and the owner is living there. Some inspectors accept the contractor's test certificate and dated photographs of the open ceiling. Some want a section opened at the riser connection and at a few joints. Which one you get is not something anyone can promise in advance, and the fix is to never let a ceiling close on uninspected pipe, which is a sentence worth saying to the general contractor at the start.

The other expensive version is the contractor who does not come back. The system is in, the final is not scheduled, and the phone goes unanswered. The contractor stopped showing up article covers how a second company picks up a permit it did not pull.

What to do this week

Get the final on the calendar before the movers come, not after. Ask the sprinkler contractor for the test certificate and the inspection request confirmation, in writing. Walk the cellar and confirm the valve. If the house has a rental unit, tell the tenant the truth about the date, because a tenant who moves into an unlicensed unit has remedies in DC that land on the owner. And hold the sprinkler contractor's balance until the acceptance is in hand, which is the one card a homeowner holds and the one most people give away on moving day.

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