Bidding a single-family home is about precision. Bidding a 50-unit apartment building is about making sure that precision repeats 50 times. Multi-family sits between residential and commercial work — read our breakdown of winning commercial bids vs residential before you jump in.
The Power of the Unit Cost
In multi-family bidding, your unit cost is everything. A $50 mistake in your kitchen cabinet estimate does not matter on one house. Multiply it by 100 units and you just gave back $5,000 of profit. Lock down the cost of a typical unit before you touch the common areas, and make sure your unit costs follow sound pricing principles.
Accounting for Logistical Drag
Your crew will not move as fast on unit #40 as they did on unit #1. Material staging, elevator waits, parking headaches, and coordination with other trades all create drag. Add 10–15% to your labor estimate for large-scale coordination and moving between floors. On a 30-unit building, that buffer can be the difference between a profitable job and working for wages.
Standardization is Your Friend
Profit in multi-family comes from repetition. Push for the same fixtures, cabinets, flooring, and paint across every unit you can. The fewer variations your crew sees, the faster they work and the fewer mistakes they make. Use the project's volume to negotiate better supplier pricing on that standardized list.
A Simple Multi-Family Bid Checklist
- Verify the typical-unit cost at least twice before scaling it.
- Add 10–15% labor buffer for logistical drag.
- Negotiate volume discounts on standardized materials.
- Document every change order in writing before the work happens.
Multi-family work can feed your crew for months, but only if your bid survives the math. Nail the unit cost, plan for the drag, and treat every change order like a change order guide test. That is how you turn scale into real profit.