Prestige Investor Series · Volume 004

Estimating Rehab Costs

A repeatable approach to scopes, line items, contractor validation, and contingency.

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A budget you can manage

Start with a decision you can defend.

The useful rehab number is not a price per square foot pulled from a different project. It is a scope-based estimate that connects every planned improvement to a quantity, price, timing assumption, and responsible party.

Cost ranges vary by property, market, contractor availability, finish level, and code requirements. Validate the budget with qualified local professionals.

01

Turn the walkthrough into a scope

A reliable budget begins with a written description of the work. Organize the walkthrough by exterior, structure, systems, and room. Record quantities and condition while you are on site, and identify items that still require a specialist, permit check, or destructive inspection.

  • Photograph and label each work area
  • Measure quantities instead of guessing
  • Separate confirmed work from open questions
02

Price the work line by line

Break broad allowances into labor, material, disposal, permit, and specialist line items where possible. Unit pricing can help with an early screen, but a contractor’s scope-matched proposal is stronger evidence before commitment.

  • Include demolition, protection, cleanup, and haul-away
  • Account for taxes, delivery, and minimum service charges
  • Tie each price to the same written scope
03

Find the costs between the lines

Thin budgets often omit work that does not photograph well: temporary utilities, site security, design or engineering, permit revisions, inspections, landscaping repair, final cleaning, and punch-list labor. Include project overhead as well as visible construction.

  • Confirm utility condition and activation costs
  • Plan for carrying work caused by inspection findings
  • Avoid double-counting items already included in a bid
04

Add contingency with judgment

Contingency is for uncertainty, not a substitute for inspection. Its size should reflect the property’s age, access, vacancy, documentation, and unresolved conditions. Keep it visible as a separate line so the base scope remains auditable.

  • Use more caution when access is limited
  • Reprice after design or scope changes
  • Track committed cost, paid cost, and cost to complete

Before you move forward

Pressure-test the budget before the offer.

  1. 01

    Does the written scope cover exterior, structure, systems, interiors, and site work?

  2. 02

    Are quantities, labor, materials, permits, disposal, and project overhead represented?

  3. 03

    Did each contractor price the same scope and finish assumptions?

  4. 04

    Which conditions remain unknown, and how will they be investigated?

  5. 05

    Is contingency separate, supportable, and sufficient for the property’s uncertainty?

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