Long Beach is a major coastal Los Angeles County city with active residential, ADU, and low-rise multifamily construction.
Long Beach sits in Climate Zone 8 — warmer than the coast but with marine influence moderating peak temperatures. Title 24 modeling for Long Beach projects emphasizes cooling efficiency, window performance, and solar PV sizing under the 2025 code.
Long Beach operates its own building department — the Long Beach Development Services Department. We format reports for Long Beach submission.
We prepare Title 24 reports for all project types in Long Beach:
- New single-family home construction
- Room additions of any size
- ADUs and Junior ADUs including garage conversions
- Remodels and alterations affecting insulation, windows, or mechanical systems
- Multifamily duplexes, triplexes, and fourplexes
- HVAC replacement projects
- Window replacement projects
We also serve all surrounding Los Angeles County communities and cities throughout California.
Title 24 Projects in Long Beach
Long Beach has one of the most varied housing stocks in Southern California: Craftsman and Spanish-style bungalows, beach-area homes, postwar tracts in the eastern and northern neighborhoods, and a large number of older courtyard apartments and small multifamily buildings. Many lots already hold more than one unit, and others are candidates for a second one.
That makes small multifamily and ADU work especially common here — adding a unit behind a bungalow, converting a garage, or building a new duplex to fourplex on an infill lot. Low-rise multifamily projects use a different compliance path from single-family homes, so it helps to know which applies before you order; see multifamily Title 24 reports and CF1R vs LMCC.
For older single-family homes, the most frequent triggers are rear additions, second stories and equipment upgrades. Many pre-war houses have raised wood floors, little or no wall insulation and original windows, and an addition's energy model needs those existing conditions described correctly. Homes closer to the water often have no air conditioning, so adding a heat pump during a remodel is a common reason for a report.
Region, climate zone and nearby cities
Long Beach is part of our Los Angeles County and Southern California coverage and is listed in Climate Zone 8. Because the city reaches the coast, the exact zone depends on your address and ZIP code. We also serve Signal Hill, Lakewood and Seal Beach.
