Your Move,
Handled
With Care.

USD Alumna. Bilingual. A Coronado REALTOR® With Deep Local Roots and a Global Perspective.

Delmira Sumner is a proud long-term resident of the beautiful San Diego area, a University of San Diego alumna, and a dedicated REALTOR® with the Nelson Riddle Team at Coldwell Banker West’s Coronado office. Her genuine love for Coronado and greater San Diego is not just professional — it is deeply personal. She lives here, she has built her life here, and she brings that authentic local investment to every client relationship she develops.

Delmira is fully bilingual in English and Spanish, allowing her to serve San Diego’s diverse and internationally connected community — including Coronado’s growing population of Spanish-speaking buyers, sellers, and relocating families — with cultural fluency and authentic care. As a coastal real estate and relocation specialist, she understands not just the market, but the lifestyle, the community, and the extraordinary quality of life that makes Coronado and San Diego County so special.

As a member of the Nelson Riddle Team — recognized among the top 3% of REALTORS® in San Diego — Delmira operates within a proven, referral-based framework that prioritizes client outcomes above all else. Led by Jim Nelson and Debbie Riddle, the team’s 30+ year track record of excellence provides Delmira’s clients with the backing of decades of Coronado market expertise, a vast referral network, and the full marketing and technology resources of Coldwell Banker West.

Delmira’s guiding mission is captured in her own words: ‘Guiding you home.’ Whether you are buying your first Coronado property, relocating to San Diego, or selling a beloved home, Delmira brings the dedication, the bilingual accessibility, and the genuine warmth to make the journey feel supported every step of the way.