The REH Blog

Notes from the Drafting Table

Practical insight on single & multi-family residential, commercial tenant improvement, and AutoCAD drafting & design — what it really takes to turn an idea into a permit-ready set.

A small Arizona office suite mid tenant-improvement buildout, with new metal-stud partition walls framed for private offices, a suspended ceiling grid partially installed exposing HVAC ductwork, and warm desert daylight through storefront glass
Commercial Tenant Improvement

What Are Typical Tenant Improvement Projects for Small Offices?

The scope you can see is rarely the scope that sets your budget. Change of occupancy, restrooms and accessibility, and mechanical capacity are what move the number on a small office TI, and all three are knowable before you sign the lease.

Rick Hunnel August 22, 2026
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An empty second-generation commercial restaurant space for lease with a stainless steel kitchen exhaust hood, exposed ceiling ductwork, brick walls, and storefront windows in warm afternoon light
Restaurant Buildouts

How to Find the Right Commercial Space for Your Restaurant

Choosing a restaurant space is a construction and permitting decision that happens to involve real estate. Occupancy classification, hood exhaust routing, grease infrastructure, and the landlord's delivery condition decide the buildout before the lease is signed.

Rick Hunnel July 20, 2026
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A Southwest-style casita with a courtyard connection to the main house on the left, and a fully detached guest house cottage on the right, under warm desert light
Casita Plans

What’s the Difference Between a Casita and a Guest House?

The terms get used interchangeably, but not on the permit set. Attached-vs-detached, kitchen-vs-kitchenette, shared-vs-separate utilities — the four questions that actually drive the design and approval path.

Rick Hunnel July 15, 2026
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A portion of an Arizona warehouse being converted into modern offices and conference rooms, with storage racking still in place at the far end
Commercial Tenant Improvement

Converting a Warehouse to Office Space: What Permits Do You Need?

The single biggest predictor of a smooth permit is whether the conversion forces a change in occupancy group — from Group S to Group B — and that one change pulls in accessibility, egress, restrooms, and fire separation.

Rick Hunnel June 29, 2026
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A small detached backyard ADU cottage with its own entrance beside a converted garage at golden hour
Accessory Dwelling Units

What Does ADU Mean and Why Should You Care?

An ADU is a second, self-contained living space on your lot — but the gap between what people think it's for and what they actually use it for is the whole story.

Rick Hunnel June 18, 2026
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Residential floor plans and drafting tools on a desk in warm light
Residential Drafting

What Does a Residential Drafter Actually Do?

A residential drafter produces the permit-ready construction documents a home needs — but most of what you pay for never shows up as a visible line on the page. Here's what the work really involves.

Rick Hunnel June 17, 2026
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More articles on the way — check back soon.