Orientation · General Building (B) · Planning and Estimating

Planning and Estimating: Running the Job Before It Runs You

About 8 minutes · 6 sections

What this guide covers

This is the owner's section. The other clusters test whether you can supervise the trades; this one tests whether you can run the JOB — read the documents, price the work, sequence the crews, and move cleanly through permits and inspections. It is the part of the exam furthest from the tools and closest to the reasons businesses fail. The section mixes code administration — permits and inspections, straight from the code's first chapter — with plan reading, estimating, coordination, and error identification: the paper-and-arithmetic craft the trade references teach. Expect the computation questions here, worked on the provided calculator. And the same closed-book rule applies: the inspection sequence and the permit rules have to be carried in, not looked up.

Key terms

Building official
The jurisdiction's enforcement officer — the person the code's permit, inspection, and approval duties run to.
Markup
The percentage added to cost on the way to a price. Its sibling, margin, is measured against the price.

The rules the exam tests

  1. Planning and Estimating is about 15 percent of the General Building (B) exam.

    The guide's own footnote says its percentages are approximate, so read the 15 percent as a close estimate. Six areas fall under Planning and Estimating: and code compliance; design and construction error identification; , plans, and ; field inspection performance; coordination of project; and cost estimation for materials, equipment, and labor.

    On the job

    Six clusters mixing code administration with plan reading, estimating, coordination, and error identification — organize your study by the guide's own list, not by where the code chapters happen to sit.

    Exact wording

    The Planning and Estimating section is approximately 15 percent of the General Building (B) examination — the guide's percentages are approximate by its own footnote — and covers scope of work and code compliance, design and construction error identification, shop drawings, plans, and specifications, field inspection performance, coordination of project, and cost estimation for materials, equipment, and labor.

    CSLB General Building (B) Examination Study Guide — s01-planning-estimating

  2. You take the examination closed-book. Nothing you look up on the job comes in with you.

    You may not use any reference materials during the examination — not the code book, not notes, not a tabbed printout. Closed-book means every reference stays outside the room, so what you would normally look up you have to know going in.

    On the job

    On the job the code book is always within reach; in the exam room it is not. What you would normally look up, you have to carry in.

    Exact wording

    The examination is closed-book: no reference materials may be used during the examination.

    CSLB General Building (B) Examination Study Guide — test-policy

  3. You pick the one best answer on every exam question.

    The exam is multiple-choice: each question gives four choices, and more than one can be partly right. Some questions require mathematical computation, so a calculator is provided for working out areas, volumes, and quantities.

    On the job

    BEST answer means more than one choice can be partly right — and the computation questions (areas, volumes, material quantities) are worked with the provided calculator, not from memory.

    Exact wording

    The examination is multiple-choice with four choices per question, written to provide only one BEST answer; some questions require mathematical computation, and a calculator is provided.

    CSLB General Building (B) Examination Study Guide — test-strategy

  4. An owner must obtain the permit before work starts. Hiring it out does not change that.

    Under the California Residential Code, the duty runs to the owner or the owner's authorized agent, and causing the work to be performed counts the same as doing it. Either one must apply for and obtain the required permit first — before constructing, enlarging, altering, repairing, moving, or demolishing a building, changing its occupancy, or installing, altering, or replacing a regulated electrical, gas, mechanical, or plumbing system.

    On the job

    The rule reaches the owner or the owner's authorized agent even when they hire someone else to perform the work — ordering the work is inside their duty, not outside it.

    Exact wording

    Under the California Residential Code, an owner or the owner's authorized agent who intends to construct, enlarge, alter, repair, move, or demolish a building or change its occupancy — or to install, alter, or replace a regulated electrical, gas, mechanical, or plumbing system, or to cause any such work to be performed — must first apply for and obtain the required permit.

    Residential Code § r105.1

  5. You still have to build permit-exempt work to code and local ordinances.

    The California Residential Code lists specific work that is exempt from a permit. But that exemption removes only the permit requirement — it is not authorization to do any work that violates the code or the jurisdiction's other laws and ordinances.

    On the job

    The classic trap: 'no permit needed' never means 'no code applies.' A permit-exempt structure still has to be built to code.

    Exact wording

    The California Residential Code lists specific work exempt from a permit — but exemption from permit requirements is not authorization to do any work in violation of the code or of the jurisdiction's other laws and ordinances.

    Residential Code § r105.2

  6. When you apply for a permit, turn in construction documents in two or more sets.

    Submit the submittal documents, including construction documents, in two or more sets, or in digital format where the building official allows. A registered design professional — a licensed architect or engineer — must prepare the construction documents where statute requires it. The building official may waive construction documents and other data that statute does not require a registered design professional to prepare, where reviewing them is not necessary to obtain code compliance.

    On the job

    The plans are not a courtesy to the plan checker — they are a required part of the application, and who may prepare them is not always the builder's choice.

    Exact wording

    Under the California Residential Code, each permit application must be accompanied by submittal documents, including construction documents, in two or more sets or in a digital format where the building official allows — and the construction documents must be prepared by a registered design professional where statute requires it. The building official is authorized to waive construction documents and other data not required to be prepared by a registered design professional, where reviewing them is not necessary to obtain code compliance.

    Residential Code § r106.1

  7. You call for each inspection. No work passes that point until the building official approves.

    The building official makes the necessary inspections — foundation and rough plumbing, mechanical, gas, and electrical are among the stated types. For on-site construction, the notification is the permit holder's to make. You must not work beyond the point indicated in each successive inspection without first obtaining the official's approval.

    On the job

    Field inspection performance is a named cluster of this section, and this is the tested workflow: notify, hold at the point, get the approval, proceed.

    Exact wording

    Under the California Residential Code, for on-site construction, inspections run on the permit holder's notification: the building official makes the necessary inspections — foundation and rough plumbing, mechanical, gas, and electrical among the stated types — and work must not be done beyond the point indicated in each successive inspection without first obtaining the building official's approval.

    Residential Code § r109

  8. No one may occupy the building until the building official issues the certificate of occupancy.

    The certificate of occupancy is the building official's written sign-off that a building may be occupied. Until it is issued, the building must not be used or occupied in whole or in part, and its occupancy must not be changed. No certificate is required for work exempt from permits, or for accessory buildings or structures.

    On the job

    Finishing the work is not the finish line — occupancy waits on the certificate, the inspection system's closing document.

    Exact wording

    Under the California Residential Code, a building must not be used or occupied, in whole or in part, and its occupancy must not be changed, until the building official has issued a certificate of occupancy — with the section's own exceptions: no certificate is required for work exempt from permits, or for accessory buildings or structures.

    Residential Code § r110.1

  9. If you mark up cost by your margin percent, you under-price the job.

    To earn gross profit equal to a given percent of the contract price, divide your cost by one minus the margin. Do not just add that percent to cost — that gives a markup and under-prices the job.

    On the job

    The two words sound interchangeable and are not — pricing by markup when the target was a margin quietly under-prices every job.

    Exact wording

    Margin is a share of the PRICE; markup is a share of the COST. To hit a gross profit equal to a given percent of the contract price, divide cost by one minus the margin — do not just add that percent to cost.

    Standard trade practice

  10. Set your markup high enough to cover and profit. Profit alone is not enough.

    Your bid must recover three things: direct job costs, a fair share of overhead, and your planned profit. A markup on direct costs covers overhead and profit only if you set it high enough to include both.

    On the job

    The failure mode is a markup calculated for profit alone — overhead then comes out of that profit and reduces or erases it.

    Exact wording

    A bid must recover direct job costs, a fair share of overhead, and the planned profit; a markup on direct costs can cover overhead and profit only if it is set high enough to include both.

    Standard trade practice

Take away

Where people go wrong

Where to look it up

Permits, what work is exempt, submittal documents, inspections, certificate of occupancy
2025 California Residential Code Chapter 1 (Scope and Administration) — readable free in ICC's online viewer at codes.iccsafe.org
Which inspections exist and when each happens
2025 California Residential Code Chapter 1, the inspections section (R109)
Administration for buildings beyond the Residential Code's scope
The 2025 California Building Code's own administration chapter, in the same ICC viewer
Estimating and plan-reading practice — takeoffs, unit costs, schedules
The trade references the guide's own resource list names: Fundamentals of Building Construction, Olin's Construction Principles, Modern Carpentry
The exact definition of a code term
Chapter 2 of the Building and Residential Codes
The official statement of what this section covers
CSLB's Study Guide for the General Building (B) Examination, section 1 — cslb.ca.gov

Glossary

Every term this guide defines, in one place. Each is also defined where it first appears.

Addendum
A change to the bid documents issued before bids are due — bidders price it in.
As-builts
Drawings marked up to show what was actually built, where it differs from the plans.
Contingency
Money set aside in the estimate for uncertainty and unforeseen costs — conditions, quantities, and prices the estimate could not fully know.
Critical path
The chain of dependent tasks that sets the job's total duration. A delay there delays the job; slack elsewhere is float.
Float
The slack a non-critical task has before its delay starts delaying the job.
Labor burden
What an hour of labor really costs beyond the wage — payroll taxes, workers' compensation, benefits.
Lead time
The wait between ordering a thing and holding it — long-lead items get ordered off the schedule, not off the day's need.
Overhead
The cost of running the company that no single job's direct costs capture — and every bid has to carry a share of it.
Punch list
The end-of-job list of corrections and incomplete items standing between almost-done and done.
RFI
Request for information — the written question that gets a plan gap or conflict answered on the record instead of guessed at in the field.
Rough inspection
The open-walls inspection of systems before they are covered up.
Scale
The ratio a drawing shrinks reality by.
Scope of work
What the contract obligates you to build — the boundary that decides what is included, what is extra, and what a change order must capture.
Shop drawings
Detailed drawings from a fabricator or installer showing how a specific component will actually be built — reviewed against the design documents before the work is done.
Specifications
The written half of the design documents — the quality, standards, and workmanship that the drawings alone cannot show.
Takeoff
Measuring counts, lengths, areas, and volumes off the plans — the quantities an estimate is built from.
Unit cost
Cost per unit of work in place — per square foot of wall, per cubic yard placed — built from the labor, material, and equipment that installing the unit takes.
Waste factor
The extra material a takeoff adds because real cuts and breakage never match theoretical quantities.

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