Design-build / custom-residential leading edge — $1M+ buyer pays for design, which is itself a credence good

Claim: Custom-residential and design-build firms targeting projects above $1M consistently adopt marketing earlier than commodity trades firms. The mechanism:

• The buyer of a $1M+ custom build is paying for design as well as construction.
• Design is a credence-quality service the buyer must select before any visible work exists ([[darby-karni-1973-credence-goods-framework]]).
• The firm that wins this buyer is therefore already engaged in selling intangibles — i.e., already practicing marketing as a category.

RenoMark, Houzz "Best of" awards, and the GuildQuality verification system all function as credibility infrastructure for this segment.

Confidence: Industry-consensus.

For Candid: Design-build / custom-residential is the highest-fit Candid segment within the GC vertical because the buyer is already trained on credence-good selection (their own customers are). The friction of marketing-services-as-credence-good ([[marketing-services-as-credence-good-for-gc]]) is partly pre-defeated. [[pioneer-craftsmen-kitchener-design-build-reference-case]] is the canonical KW-Region example.