Crawlspace Moisture in Sacramento: What Actually Matters (and What Doesn’t)

Framed floor opening showing underfloor access during remodel — Hand + Hammer Development

Welcome to the Hand + Hammer Building Science Blog, your weekly deep dive into crawlspace moisture, ground vapor, and the durability details that actually change how a Sacramento house feels. Real knowledge, no fluff, straight from the field. Last time we walked through window and door flashing, pan details, and WRB integration. This week we […]

Second Story Addition Cost in Sacramento: What to Expect in 2026

Second story addition framed and sheathed in OSB above the first floor of a Sacramento home

A second story addition is one of the biggest investments you can make in your Sacramento home, and also one of the most misunderstood. Most homeowners come in expecting kitchen remodel prices and end up learning that a full second story is closer to building an entirely new floor — because that is exactly what […]

What Does a Whole House Remodel in Berkeley Cost? Real Numbers for 2026

If you are planning a whole house remodel in Berkeley and you want a straight answer on cost, here it is: most projects land between $300 and $600 per square foot, and a full gut to the studs can run $750 per square foot or higher. For a typical Berkeley home, that means somewhere between […]

Home Addition Cost in the Bay Area: Real Numbers for 2026

Ground-floor addition under construction on a Sacramento home, wrapped in weather barrier with new windows and exposed rafters

If you are trying to figure out home addition cost in the Bay Area, the numbers are higher than most people expect. Home addition cost in the Bay Area typically runs between $500 and $650 per square foot in 2026. That is the reality of building in one of the most expensive construction markets in […]

How Much Does an ADU Cost in Sacramento vs. the Bay Area? (2026 Guide)

I get this question almost every week. Someone calls, tells me they want to build a backyard cottage or convert their garage, and the first thing they ask is: “How much is this going to cost me?” Honest answer? It depends — but I can give you real numbers, not the vague ranges you find […]