Whole-Home Renovations Built for Multigenerational Families
The Space Crunch Multigenerational Families Face
Growing Together Under One Roof
17% of homes purchased last year were multigenerational — Altadena homes lack in-law suites and ADUs for extended family living
Multigenerational living is no longer niche. 17% of homes purchased last year were multigenerational households, an all-time high. Altadena families searching for dual master suite homes, in-law suites, casitas and accessory dwelling unit homes are running into existing layouts that cannot support skipped generation households or boomerang children. Demand is for comprehensive whole-home renovations and detached ADUs, not small cosmetic updates.
36% of 2024 buyers moved multigenerational for cost savings — sandwich generation needs privacy and separate living quarters
Finances are the primary driver for extended family living. 36% of homebuyers in 2024 cited cost savings as the primary reason for purchasing a multigenerational home, up from 15% in 2015. 67% of people cite finances as a major or minor reason to live with multiple generations. The sandwich generation in Altadena needs homes with separate entrances, dual master suites and granny flats that allow independence while sharing costs, not handyman repairs.
271% increase in three+ generation households since 2011 — 59.7 million Americans need multigenerational home renovation
The scale of multigenerational households is growing fast. The number of Americans living in multigenerational households with three or more generations increased 271% from 2011 to 2021. As of March 2021, 59.7 million people were living in multigenerational family households. Altadena homeowners need ground-up custom homes, complete rebuilds and comprehensive whole-home renovations designed for three generations under one roof, not small-scale fixes.
How JMB Builders Designs Whole-Home Renovations for Multigenerational Living
High-end, design-conscious whole-home renovations and detached ADUs built exclusively for Altadena homeowners.
JMB Builders is a high-end residential general contractor led by Isaac Rebollo, CSLB License #1103479, that works exclusively in Altadena, California. We specialize in comprehensive whole-home renovations and detached ADU construction alongside ground-up custom homes and complete rebuilds. Our six-stage process — Initial Conversation, Discovery & Feasibility, Pre-Construction Planning, Permitting & Preparation, Construction Management, and Completion & Closeout — is built for large-scope work with clear communication and quality control. We deliberately filter for significant projects and never accept work outside Altadena.
- Altadena-only focus with one community, one standard, total attention
- Specialized in comprehensive whole-home renovations and detached ADU construction for multigenerational house plans
- Six-stage process from Initial Conversation through Completion & Closeout with honest fit check and communication-first management
Why Multigenerational Families Choose JMB Builders
Locally focused, not scattered
Hyper-local expertise for multigenerational projects. JMB Builders serves Altadena only, ensuring deep knowledge of local requirements for in-law suites, accessory dwelling unit homes and dual master suite additions. One community, one standard, total attention for extended family living projects.
17% of homes purchased last year were multigenerational households, an all-time high
Licensed, bonded, and insured for major work
Verified credentials for large-scope multigenerational work. CSLB License #1103479, $2,000,000 general liability coverage and $100,000 contractor bond on file. Licensed, bonded and insured for ground-up custom homes, complete rebuilds, comprehensive whole-home renovations and detached ADU construction that support multigenerational households.
67% of people cite finances as a major or minor reason to live with multiple generations
Built for large-scope multigenerational solutions
Built exclusively for major multigenerational solutions. We do not do handyman or small-repair work. Our focus is ground-up custom homes, complete rebuilds, comprehensive whole-home renovations and detached ADUs that create in-law suites, casitas and separate living quarters for extended family living.
36% of homebuyers in 2024 cited cost savings as the primary reason for purchasing a multigenerational home
What the work includes.
- Exclusive Altadena service area with hyper-local attention
- Comprehensive whole-home renovations for multigenerational home design
- Detached ADU construction for in-law suite and casita solutions
- Complete rebuilds tear-down re-build on existing lots
- Ground-up custom homes with design-conscious planning
- Six-stage process from Initial Conversation to Completion & Closeout
The path, step by step.
Initial Conversation
Share project type, property, goals and readiness. We do an honest fit check both directions with no commitment.
Discovery & Pre-Construction Planning
We assess existing conditions, constraints, scope and budget strategy, and coordinate with design team.
Construction Management & Closeout
Deliberate sequencing, clear communication, quality control, then walkthroughs and documentation at completion.
Worth doing first.
- Add a process explainer linking Initial Conversation and Discovery & Feasibility to multigenerational planning for in-law suites, dual master suites and ADUs.
- Reference Altadena-only focus and CSLB License #1103479 in multigenerational FAQ about permitting for accessory dwelling units and extended family living.
What sets the work apart.
- Altadena only builder with total community focus
- High-end design-conscious work for significant projects
- Specializes in whole-home renovations and detached ADUs
- Led by Isaac Rebollo CSLB License #1103479
- Six-stage process with honest fit check upfront
- Licensed bonded insured with $2M liability coverage
- Communication-first approach for large scope builds
- Filters for ground-up homes rebuilds and ADUs only
Asked and answered plainly.
Yes. JMB Builders specializes in comprehensive whole-home renovations and detached ADU construction for Altadena homeowners. We work through Discovery & Feasibility and Pre-Construction Planning to align scope, budget strategy, and design-team coordination for multigenerational living solutions.
Yes. Complete rebuilds tear-down re-build on an existing lot are a core service. Our process includes Permitting & Preparation around applicable requirements and Construction Management with deliberate sequencing and quality control.
We are a high-end residential general contractor that deliberately filters for large-scope work only: ground-up custom homes, complete rebuilds, comprehensive whole-home renovations, and ADUs. We do not do handyman or small-repair services.
The first stage is an Initial Conversation to discuss project type, property, goals, and readiness with an honest fit check both directions. The consultation is free, commits you to nothing, and helps determine if JMB Builders is the right match.
Yes. JMB Builders is led by Isaac Rebollo, CSLB License #1103479, licensed bonded and insured with $2,000,000 general liability coverage and $100,000 contractor bond on file.