Koll Custom Homes Design & Build

Koll Custom Homes Design & Build operates as a design-build firm in Old Town Temecula, handling residential projects where the design and construction phases run under one roof rather than separately. The scope spans kitchen and bath remodels, room additions, ADU conversions (garage-to-living-space and backyard units), and custom builds — the full range of residential work from interior updates to ground-up construction. Design-build means one point of contact through permit phase into framing and finish rather than a builder executing an architect's separate plans. The structure suits homeowners in the wave of 1995–2010 tract housing hitting remodel age, particularly primary bath and kitchen projects where design decisions and construction timing need to stay coordinated. ADU work across Temecula has grown with California law changes, and design-build handles that complexity more directly than traditional bid-and-build. Unincorporated areas nearby (like portions of De Luz) often face longer county permitting timelines than city jurisdictions; having design and construction expertise under the same team absorbs some of that wait. For a straightforward contractor-only job where plans are finalized and approved before construction starts, a design-separate builder may move faster. For a project still taking shape, the integrated approach keeps momentum and decision-making in one place.