Great — here are top luxury boutique villa properties across Sri Lanka (selected for privacy, design, service and unique locations). I’ve grouped them by region and included a short highlight, why guests choose them, and one quick tip for booking. Sources for the descriptions are cited after each entry.

South Coast / Galle + Weligama

• Kahanda Kanda (Koggala, near Galle) — intimate plantation retreat of individually designed standalone villas (many with private plunge pools), set on a tea estate overlooking Koggala Lake. Ideal for couples who want privacy, art-filled interiors and easy access to Galle Fort and south-coast beaches. Tip: villas sell out in high season (Dec–Mar), so book early. (kkcollection.com)

• Cape Weligama (Weligama headland) — cliff-top luxury resort made up of terracotta-roofed suites and village-style villas; many villa types include semi-private or private infinity pools and spectacular Indian Ocean vistas. Great for ocean views, spa and easy surf/whale‑watching excursions. Tip: request a true “pool pavilion” or Cape Residence for maximum privacy and your own pool. (visitweligama.com)

Central Highlands / Kandy area

• The Kandy House (near Kandy) — a boutique, villa-style manor house converted into an intimate luxury hideaway with a handful of individually styled suites and a villa feel; notable for heritage architecture, lush gardens, privacy and a calm, romantic atmosphere. Good for culture-based stays and those wanting a boutique-country-house experience. (thetimes.co.uk)

Cultural Triangle

• Uga Ulagalla (Thirappane / Anuradhapura area) — an all-villa eco-boutique set across a large estate with standalone thatch-roof pool villas (each with its own plunge pool), ideal as a refined base for exploring Sigiriya, Anuradhapura and wildlife drives. Perfect when you want a private villa experience inside the Cultural Triangle. (thetraveldaily.co.uk)

Hill Country / Wellness

• Santani (near Kandy) — a top wellness-focused boutique retreat on a former tea estate with minimalist, design-led villas (recent villa additions include private infinity pools). Known for Ayurveda programs, hiking and a quiet, restorative setting in the hills. Tip: book a wellness package (detox/Ayurvedic program) if you want a structured retreat. (Wallpaper.com)

Other notable boutique villa-style options (worth considering)

• Uga Escapes group villas (other Uga properties across the island) — the Uga brand operates several villa-style luxury properties (good for consistent service levels and a mix of coastal, cultural and jungle locations). Useful if you want a branded, reliable villa experience across regions. (thetraveldaily.co.uk)

Booking & travel tips

• Regions: choose villas by region depending on activities — south coast (beaches, surf, whale-watching), Cultural Triangle (UNESCO sites, safaris), Hill Country (tea, hikes, wellness), Kandy (culture).
• Seasonality: Sri Lanka’s main high season for the south and west coast is roughly December–March; for the east coast it’s April–September. Book early for December–January.
• Private transport: arrange an airport transfer or private driver through your villa — many top villas include/arrange comfortable transfers and day excursions.
• Children/age limits: some boutique villas (e.g., Kahanda Kanda, Kandy House) restrict children or have age limits — check policies before booking. (RedDotTours.com)

If you’d like, I can:

• Narrow this to a shortlist (2–4) matching your travel dates, travel style (couples, family, wellness, surfing), and budget; or
• Check current availability/rates for specific dates and provide booking links and contact details (I’ll search current availability and rates).