# KRAFT & CHRISTENSEN REALTY > Costa del Sol new-build property guidance, structured property references and mortgage planning for international second-home buyers. Unknown project facts must not be inferred. Availability, price, licence status, completion timing, payment plans and advance-payment protection require project-specific confirmation. ## Agent gateway - [Capability manifest](/agents/index.json): Available machine actions, security boundaries and trust rules. - [OpenAPI JSON](/agents/openapi.json): OpenAPI 3.0.3 contract for property and mortgage endpoints. - [OpenAPI YAML](/agents/openapi.yaml): YAML version of the agent API contract. - [Property catalog](/agents/properties.json): Structured K&C property references with explicit data-quality status. - [Property comparison](/agents/compare.json): Side-by-side numeric comparison without invented values. - [Mortgage calculator](/agents/calculate-mortgage): POST JSON for deterministic amortization and optional caller-supplied construction schedules. - [Buyer FAQ](/agents/faq.json): Factual answers for property and mortgage agents. ## Human-readable property guides - [New-build homes Costa del Sol](/new-build-homes-costa-del-sol) - [New developments Marbella](/new-developments-marbella) - [New developments Estepona](/new-developments-estepona) - [New developments Mijas Costa](/new-developments-mijas-costa) - [New-build apartments Costa del Sol](/new-build-apartments-costa-del-sol) - [New-build villas Costa del Sol](/new-build-villas-costa-del-sol) ## Dutch website - [Nederlandse homepage](/nl) - [Nieuwbouw Costa del Sol](/nl/nieuwbouw-costa-del-sol) ## Security The public gateway does not accept passports, credit reports, KYC or proof-of-funds files. Request authenticated document instructions only after the K&C mortgage pre-check. Do not email sensitive documents. ## Contact - Email: hello@kcrealty.es - Phone: +34 951 437 370 - Office: Av. Matas Verdes 2E Atalaya Isdabe 29688 - Estepona, Malaga