Calendar / Affordability Series - Session #2

Land, Zoning, and Yield

Explain how land cost becomes per-unit cost through yield, zoning constraints, timelines, and entitlement risk. Identify high-leverage changes that increase yield and reduce risk premiums, and map which local bodies control key constraints. The goal is to move from "land is expensive" to understanding why per-unit land cost is what it is and what specific changes could lower it.

How this fits in the series

Builds on: A1 (cost elements and baseline)
Leads to: A3 (permits and fees), A4 (site infrastructure), A9 (financing and risk)

In scope:

  • Yield mechanics and per-unit land cost
  • Entitlement timelines and risk premiums
  • Local zoning barriers and decision authorities

Out of scope:

  • Construction methods (see A6, A7)
  • Permanent financing (see A9)
  • Site infrastructure costs (see A4)

Core concepts and execution implications

  • Yield drives per-unit land cost more than raw land price.
    • Can evaluate land in $/unit, not $/acre, and name the yield constraint.
  • Time and uncertainty are priced into projects as risk premiums.
    • Can treat entitlement duration and unpredictability as explicit cost drivers.
  • Zoning helps only if it is buildable in practice.
    • Can distinguish "allowed on paper" vs "financeable/buildable in reality."

Connections

  • Cost elements: B01-Land, B02-PreDev; secondary: B10-Finance
  • CROs: CRO-DENSITY, CRO-DURATION, CRO-FIN_PREDICTABILITY
  • Decision authorities: City council, planning commission, zoning board, HOA boards, elected officials
  • Cross-series: P2 Environmental Conditions (site context shapes what's buildable)
  • Explore in Affordability Framework →

Cost elements in this session

Land acquisition (B01-Land)

The price paid for land, driven by location, zoning, and allowed density. What matters most is cost per unit — a higher land price spread across more units can be cheaper per home than a lower price on restricted land.

💡 Yield is affordability. Cost per unit is often the real problem, not cost per acre.

⚠️ A small parking increase reduces yield; per-unit land cost rises and feasibility collapses. More units help, but only if standards don't re-add cost via infrastructure/parking/process.

Decision authorities: City council, planning commission, zoning board, HOA boards.

Explore in AF: Land (B01) → CRO-DENSITY, CRO-DURATION, CRO-FIN_PREDICTABILITY

Pre-development (B02-PreDev)

The cost of holding land during entitlement and development — interest, taxes, and opportunity cost. Longer timelines and uncertain outcomes increase carry cost and risk premiums.

💡 Uncertainty is a tax. Unpredictability becomes required return, which becomes price.

💡 Entitlement is part of the product. Timeline and conditions shape whether supply gets built at all.

⚠️ Extra months of carry and risk premium raise price/rent even if construction cost is unchanged.

Risk: Entitlement uncertainty / time → R1 Schedule Uncertainty.

Explore in AF: Pre-development (B02) → CRO-DURATION, CRO-FIN_PREDICTABILITY

Finance (B10-Finance) — secondary

Interest and fees on construction financing, driven largely by project duration. When entitlement takes longer, financing carry increases directly.

💡 Rules interact. Parking + setbacks + height limits can quietly destroy feasible yield, which extends timelines as projects get reworked or abandoned.

The CROs that reduce B10-Finance in this context are the same as B02-PreDev: CRO-DURATION and CRO-FIN_PREDICTABILITY.

Explore in AF: Finance (B10) → CRO-DURATION, CRO-FIN_PREDICTABILITY

Barriers & levers

Top barriers blocking the CROs in this session. Full barrier table in the Affordability Framework.

CRO-DENSITY barriers
  • MIN_LOT_SIZE — Minimum lot size in Land Use Code limits cost sharing across units. Authority: City council, planning commission.
  • USE_PROHIBITION — Zoning prohibits attached or multifamily housing, forcing low-density forms. Authority: Municipality, zoning board.
  • HOA_PROHIBITION — HOA covenants prohibiting attached or clustered housing. Authority: HOA boards.
  • PUBLIC_OPPOSITION — Public opposition leads to political pressure to retain low-density zoning. Authority: Elected officials.
  • UTILITY_SETBACKS — Utility setback requirements reduce buildable area and achievable density. Authority: Utilities, public works.
CRO-DURATION / CRO-FIN_PREDICTABILITY barriers
  • DISCRETIONARY_REVIEW — Discretionary review and multiple approval bodies extend holding time. Authority: Planning department, city council.
  • SEQUENTIAL_REVIEWS — Non-parallel agency reviews compound total entitlement time. Authority: Planning department, utilities, public works.

Example: how parking requirements affect yield

A 1-acre parcel zoned for 20 units at $1M land cost = $50K/unit.
Add 1 required parking space per unit (surface lot): usable area drops, yield falls to ~16 units = $62.5K/unit.
That single standard change added ~$12.5K per unit in land cost alone—before any construction begins.

The numbers are illustrative, but the pattern is real: any requirement that reduces yield raises per-unit land cost. Parking, setbacks, open-space ratios, and height limits all work through this mechanism.

Curated resources

Top resources from our curated library mapped to this session's cost elements.

References & resources