One-Story House Plans Under 100m² in Bulgaria 2026
Single-story living is experiencing a renaissance in Bulgaria. Whether you’re planning a retirement home, vacation property, or simply prefer the convenience of one-level living, houses under 100m² offer the perfect combination of manageable size and regulatory simplicity.
Under Bulgarian building law, homes under 100m² qualify for simplified construction requirements—meaning you can legally build without hiring a licensed contractor. This makes one-story designs particularly attractive for self-builders looking to maximize value.
Browse One-Story House Plans →
Why Choose a One-Story House Under 100m²?
Single-level homes offer advantages that extend far beyond building simplicity:
Accessibility for All Ages
One-story designs eliminate stairs entirely, making them:
- Aging-in-place ready—no mobility concerns as you get older
- Family-friendly—safe for young children and elderly relatives
- Universally accessible—easy to adapt for wheelchair users if needed
Lower Construction Costs
Without stairs, upper floor structure, or complex roof framing, single-story homes cost less per square meter:
- Simpler foundation requirements (no concentrated stair loads)
- No need for second-floor bathroom plumbing runs
- Reduced scaffolding and safety equipment needs
- Faster construction timeline
Energy Efficiency Benefits
Heat rises—and in a one-story home, it stays in your living space:
- More efficient heating in Bulgarian winters
- Easier to insulate with consistent ceiling heights
- Simpler HVAC routing without vertical runs
- Better natural ventilation options
Our One-Story Plans Under 100m²
We’ve designed two one-story homes specifically optimized for Bulgarian self-builders:
House C-101: Compact Mountain Chalet (80m²)
Our smallest design maximizes every square meter:
- Layout: Open-plan living/dining/kitchen, 1 bedroom, 1 bathroom
- Style: Cozy mountain aesthetic with traditional pitched roof
- Special features: Covered terrace for outdoor living
- Price:
€2,493€2,168 (15% discount)
Perfect for: Vacation homes in Bansko, Borovets, or Pamporovo; retirement retreats; starter homes.
House C-102: Efficient Family Home (97m²)
Maximum space while staying under the 100m² threshold:
- Layout: 2 bedrooms, 1 bathroom, open living area, utility space
- Style: Multi-gable roof with ground-level veranda
- Special features: Designed for future expansion potential
- Price:
€2,731€2,375 (15% discount)
Perfect for: Small families; couples planning ahead; rental properties in Plovdiv, Stara Zagora, or Veliko Tarnovo.
Design Principles for Small One-Story Homes
Making 80-100m² feel spacious requires thoughtful design:
Open-Plan Living
Both our designs use open floor plans that:
- Combine kitchen, dining, and living areas visually
- Allow natural light to penetrate deeper into the home
- Create flexible spaces that adapt to your needs
- Make the home feel larger than its footprint
Strategic Window Placement
Large windows facing south (in Bulgaria’s climate):
- Maximize winter solar gain for passive heating
- Create visual connections to outdoor spaces
- Flood interiors with natural light
- Reduce daytime lighting costs
Outdoor Room Extensions
Covered terraces and verandas effectively expand your living space:
- Protected outdoor dining area
- Additional “room” during mild weather
- Not counted toward the 100m² threshold
- Cost-effective way to add usable space
Site Considerations for One-Story Homes
Single-level homes have specific site requirements:
Plot Size Requirements
A 100m² one-story home needs more land than a two-story home of equal area:
- Minimum plot: Typically 400-500m² for comfortable setbacks
- Ideal plot: 600-800m² for garden space
- Check local building regulations for coverage ratios (usually 20-40%)
Terrain Suitability
One-story homes work best on:
- Flat to gently sloping sites (under 10% grade)
- Sites where you want minimal visual impact
- Locations where basement construction is difficult
- Areas with high water tables
Orientation Strategy
With all rooms on one level, orientation matters more:
- Living areas facing south for winter warmth
- Bedrooms away from street noise
- Kitchen positioned for morning light
- Terrace oriented for afternoon/evening use
Construction Advantages for Self-Builders
One-story homes are ideal for DIY construction:
Simplified Structural Work
Without upper floors:
- Standard foundation designs work in most cases
- Roof loads spread evenly across walls
- No complex beam calculations for floor support
- Simpler connections throughout
Safer Construction Process
All work happens at ground level or low heights:
- No scaffolding for interior work
- Reduced fall risks during roofing
- Easier material handling
- One person can accomplish more tasks safely
Faster Timeline
Single-story construction progresses quickly:
- Foundation to roof in 2-3 months for experienced self-builders
- No waiting for floor curing before continuing upward
- Weather affects fewer construction phases
- Interior finishing starts sooner
Frequently Asked Questions
Is a one-story or two-story house cheaper to build?
Per square meter of living space, one-story homes typically cost 10-15% more due to larger roof and foundation areas. However, the simplified construction for self-builders often offsets this—especially when you factor in the value of your own labor and reduced contractor fees.
Can I add a second floor later to a one-story design?
Our plans are designed as single-story homes. Adding floors later requires extensive structural modifications that often cost more than building two stories initially. If you think you’ll want more space, consider our two-story designs or plan for a separate addition.
How much land do I need for an 80-100m² one-story house?
We recommend minimum 400-500m² for the house plus comfortable setbacks. For outdoor space and gardens, 600-800m² provides ideal flexibility. Check your municipality’s specific building coverage requirements.
Do one-story homes have better resale value?
In Bulgaria’s market, one-story homes under 100m² are increasingly popular—particularly for the retirement and vacation home segments. The self-build legality adds value for buyers who appreciate the regulatory simplicity.
Start Your One-Story Project Today
One-story living offers simplicity, efficiency, and the freedom to build on your own terms. Our under-100m² designs give you everything you need to start construction legally and confidently.
Your next steps:
- Compare C-101 and C-102 plans — find your perfect fit
- Review C-101 (80m²) for compact efficiency
- Explore C-102 (97m²) for maximum space
- Contact Architect Miglena for site-specific advice
All ready-made plans include 15% discount—the ideal time to begin planning your Bulgarian one-story home.
