Why order Mechanical, Electrical, and Plumbing together?

Ordering Mechanical, Electrical, and Plumbing together as the Full MEP Package gives you two things three separate orders cannot: built-in cross-discipline coordination and a substantially lower price. Because one team draws all three systems against the same architectural set, the conflicts that cause most MEP plan-check corrections are caught before submittal rather than after.

Coordination is the real value

Most MEP comments at the city stem from cross-discipline mismatches. When the same team produces all three disciplines, those conflicts are reconciled from the start:

• The electrical panel schedule feeds the correct heat-pump and water-heater loads, because those loads come directly from the mechanical and plumbing designs.
• The whole-building ventilation on the mechanical plans matches the energy-model assumptions.
• Every fixture shown on the plumbing plans has corresponding power shown on the electrical plans — no orphaned fixtures, no circuits feeding nothing.
• A single coordinated set is also easier for the city to review than three disconnected submittals.

The bundle costs far less than three separate singles

At the same square footage, the Full MEP Package is roughly $1,490 cheaper than buying Mechanical, Electrical, and Plumbing as three standalone single-discipline sets — and the savings grow as the ADU gets larger.

The bundle costs less to produce because we build one set of base drawings, perform intake once instead of three times, and submit one coordinated set rather than three independent jobs.

When a single or two-discipline order makes sense instead

Bundling is the best value for most new-construction ADUs and garage conversions, but not every project needs all three. Order fewer disciplines when an attached ADU ties into existing house systems and needs only, say, electrical and mechanical, or when another engineer or your architect is handling one discipline. The two-discipline tier ($1,195 and up) still beats two separate singles, and a lone discipline starts at $995.

The comparison above is for our plan-preparation fees only. City permit fees, utility connection fees, and field testing are separate and unaffected by which package you choose.

Want the coordinated set that clears review on the first pass? See the Full MEP Package, compare options on the pricing page, or start an order.