Residential Title 24 Energy Reports

Compliance documentation for single-family new construction, additions and remodels across all 16 California climate zones.

Residential projects run the full range, from a window replacement that needs a short compliance document to a ground-up custom home modelled against a zone-specific energy budget. What they share is that the local building department expects the energy documentation as part of the plan-check submittal.

Project types we cover

  • New construction — complete single-family dwellings
  • Additions — new conditioned floor area added to an existing home
  • Remodels and alterations — HVAC changeouts, water heating, windows, envelope work

Additions and alterations are not the same thing

An addition creates new conditioned floor area. An alteration changes an existing regulated component without adding area. The Energy Code treats them differently, and a project can be both at once — a common example is an addition that also replaces the heating system serving the existing house. Documenting only one half is a frequent source of correction letters.

Which compliance path applies

There are two routes. The prescriptive path is a checklist: meet each listed requirement and you comply. The performance path uses CEC-approved modelling software to show your design meets an energy budget overall, which allows trade-offs — more glazing here, better insulation there. Performance is the more commonly used route precisely because of that flexibility. We select the path that gets your design approved rather than forcing the design to fit the path.

Pricing

From $245, including up to 3,500 sq ft. Every additional 500 sq ft is +$49, calculated in the order form so you see the exact figure before paying.

Common residential Title 24 questions

  1. When is Title 24 required for a home?
  2. Does a remodel need Title 24?
  3. Does a room addition need Title 24?
  4. What plans are needed for a residential Title 24 report?
  5. How much does a residential Title 24 report cost?
  6. How long does a residential Title 24 report take?
  7. What is the CF1R for a house?
  8. Do new windows need Title 24?
  9. Does an HVAC replacement need Title 24?
  10. What if plan check returns Title 24 corrections on a house?

Frequently Asked Questions