How Housing Gets Built
The sequence a new apartment building goes through from an idea to occupied units, and why every stage costs money before any rent comes in.
Most people encounter a new apartment building twice: once as a fenced lot with a rendering on a sign, and once as a finished building with a leasing office. Between those two moments sits a sequence of steps that usually takes years, and every step has a cost attached to it, whether or not anything visible is happening on the site.
By the end of this lesson you will be able to name each stage in that sequence, understand what a developer is actually doing at each one, and see why the phrase “time is money” is a literal description of how development works rather than a figure of speech. Lessons 2 through 4 build on this by explaining who funds each stage and how the numbers decide whether the project happens at all.
Stage 1: Finding a site and controlling the land
Development begins with a piece of land that could hold more housing than it holds today. A developer rarely buys that land outright at the start. Instead, the developer usually signs an option agreement or a purchase agreement with a long closing period. An option gives the developer the right, but not the obligation, to buy the parcel at an agreed price within a set window. A purchase agreement with contingencies works similarly: the developer commits to buy only if certain conditions are met, such as receiving approvals.
This matters because the land is not yet useful until the developer knows what can be built on it. Paying for the land before that question is answered means putting the full purchase price at risk. Controlling the land with a deposit instead limits the money at risk to the deposit, the option payments, and the cost of the studies that follow. Those costs are real, and they are generally not refundable if the project stops.
Stage 2: Due diligence
With the land under control, the developer investigates it. This includes a title search to confirm the seller can actually sell, a survey to fix the boundaries, a geotechnical study of the soil, an environmental assessment to check for contamination (a contaminated site is called a brownfield and can be expensive to clean), and a review of where water, sewer, and electric service can be connected. A market study estimates what rents nearby comparable buildings are achieving.
Every one of these studies is paid for by the developer before there is any certainty the building will happen. They are the first of the soft costs: money spent on services, fees, and financing rather than on the physical structure.
Stage 3: Concept and zoning check
In parallel, an architect sketches what could fit on the site. The sketch is constrained by the zoning code, which sets the allowed uses, the maximum density (units per acre), the floor area ratio (building floor area relative to lot area), height limits, setbacks from the property lines, and the parking ratio (spaces required per unit).
The central question at this stage is whether the proposed building is allowed by right, meaning it complies with the existing code and needs only administrative sign-off, or whether it needs a discretionary approval. That distinction determines how long the next stage takes and how uncertain its outcome is.
Stage 4: Entitlements and approvals
Entitlement is the collective name for the legal approvals a project needs before it can be permitted: rezonings, conditional use permits, subdivision approvals, and similar decisions made by a planning commission or an elected body. Site plan approval is the review of the specific layout of buildings, driveways, landscaping, drainage, and utilities on the parcel. A variance is permission to deviate from a specific rule in the code, for example to build closer to a lot line than the setback allows.
Discretionary approvals usually involve public hearings, staff reports, and revisions. Neighbors may object, and the approving body may attach conditions such as added parking, reduced height, or contributions to off-site improvements. Each round of revision costs design fees and months. The developer is carrying the land deposit, the option payments, and the consultants throughout.
Stage 5: Design and permitting
Once the project is entitled, the architect and engineers produce construction documents: the detailed drawings a builder can price and a building department can review. The building department reviews the documents for code compliance and issues a building permit. Permit fees and any impact fees (charges meant to offset the project’s effect on roads, schools, or utilities) are paid at or around this point.
Stage 6: Financing commitment
A lender will not commit to a construction loan until it can see the approvals, the permit, a signed contract with a builder, a detailed budget, and evidence that the developer has raised the equity required. The lender’s review of the project, called underwriting, tests whether the projected rents can support the loan. Lesson 2 explains the pieces of this capital and who provides them.
Stage 7: Construction
The developer hires a general contractor, the firm responsible for building the project and coordinating the subcontractors who do the framing, plumbing, electrical, and finishing work. The cost of that physical work, the materials, and the labor is the project’s hard costs. Soft costs continue during construction too: interest on the construction loan, insurance, property taxes on the land, legal fees, and the developer’s own staff time.
Budgets include a contingency, a reserve for the unexpected, because ground conditions, weather, price changes, and design revisions rarely match the plan exactly. Interest on the loan accrues on every dollar drawn, so a building that takes longer to finish costs more to finish.
Stage 8: Lease-up and stabilization
When units are ready, leasing begins. The pace at which a market fills the new units is the project’s absorption. Stabilization is the point at which the building reaches a steady, sustainable occupancy and its income becomes predictable. Until then, the building has full operating costs and partial rent.
At stabilization, the construction loan, which is short-term and relatively expensive, is usually replaced with a permanent loan: long-term debt sized against the building’s actual income rather than its budgeted cost.
Stage 9: Hold or sell
The finished building is either held as a long-term investment or sold to an owner who wants a stable income-producing asset. Either way, its value is set by what the building earns, not by what it cost to build. That gap between cost and value is the subject of Lesson 3.
| Stage | What happens | What it costs or risks |
|---|---|---|
| 1. Site and land control | Option or contingent purchase agreement on a parcel | Deposit and option payments; lost if the project stops |
| 2. Due diligence | Title, survey, soils, environmental, utilities, market study | Consultant fees paid with no certainty of a project |
| 3. Concept and zoning check | Architect tests what the code allows on the site | Design fees; discovery that the site needs discretionary approval |
| 4. Entitlements | Rezoning, site plan approval, variances, public hearings | Months of carrying cost; conditions that raise cost; possible denial |
| 5. Design and permitting | Construction documents; building permit; impact fees | Full engineering fees; permit and impact fees; plan-review time |
| 6. Financing commitment | Lender underwrites; equity raised; loan closes | Equity spent first; developer signs a guaranty; loan fees |
| 7. Construction | General contractor builds; loan drawn in stages | Hard costs; interest on every dollar drawn; overruns beyond contingency |
| 8. Lease-up and stabilization | Units lease; occupancy reaches a steady level | Full operating cost against partial rent; slow absorption extends the gap |
| 9. Hold or sell | Permanent loan replaces construction loan; owner holds or sells | Value set by income, not cost; a thin margin between the two is the risk |
Why time is money
Every stage above involves money spent before any rent arrives. The cost of holding that money, whether it is interest paid to a lender or the return an investor expects on cash that is tied up, is called carrying cost. It accrues every month a project sits between stages, and it is added to the total the eventual rents must cover.
Assume $6,000,000 already spent on land and soft costs, carried at 8% for 12 months: $6,000,000 × 8% = $480,000. Spread over 100 units, that is $4,800 per unit, or about $33 per unit per month once the building must earn it back under our default rent math. All figures are assumed, not observed.
The carrying-cost illustration assumes $6,000,000 of land and soft costs already spent, carried at an 8% annual cost of capital for 12 months, on a 100-unit building. The $33 per unit per month figure converts that $480,000 into rent using the publication’s default rent-math assumptions (65% loan-to-cost, 6.5% interest, 30-year amortization, 8% equity yield, 5% vacancy), which are explained on the Methodology page.
The table describes stages qualitatively. We have not assigned durations to stages because they vary widely by jurisdiction and project; where an article of ours gives a duration, it is labeled as an assumption.
This lesson describes a process rather than measured outcomes, so it reports no external statistics. The one dollar figure in it is modeled from the assumptions above; durations and costs on a real project come from that project's own jurisdiction and budget.
If a project is allowed by right, Stage 4 shrinks to an administrative review, which removes months of carrying cost and most of the approval risk.
If a lender funded earlier or at a higher share of cost, the developer would carry less of its own money through the early stages; Lesson 2 explains why lenders resist that.
If construction runs long, interest on the construction loan and the developer’s overhead keep accruing, and lease-up starts later, which delays the day the building earns its first dollar of rent.
Next lesson. Every stage above needs money before there is rent to pay for it. Lesson 2: Who Pays for Development? explains where that money comes from, in what order it is repaid, and who is on the hook when a project goes wrong.
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