What a custom home costs to build in Bloomfield Hills.
Custom home costs in Bloomfield Hills, Birmingham, and the surrounding Oakland County market run $350-$700+ per square foot in 2026, with most projects landing between $400 and $550. The actual number depends on size, finish level, mechanical systems, and the lot itself. This guide walks through the realistic ranges, where the money goes, and the decisions that move a project from the bottom to the top of the range.
Cost ranges by tier
Standard custom · $350-$425/sf
- Custom design + engineering
- Stock-grade fixtures and finishes
- Standard HVAC + electrical
- Builder-grade trim package
Premium · $425-$550/sf
- Semi-custom cabinetry & millwork
- Mid-range stone & tile
- Smart home wiring throughout
- Higher-end fixtures + appliances
Luxury · $550-$700/sf
- Custom millwork & inset cabinetry
- Premium stone, custom tile work
- Designer-driven interiors
- Geothermal + smart-home automation
Ultra-luxury · $700+/sf
- Architect-led full bespoke
- Imported materials
- Premium mechanical systems
- Landscape, pool, outbuildings included
Where the money goes
Shell & structure · 25-30%
- Foundation, framing, roof
- Sheathing, windows, doors
- Roofing & siding
Mechanicals & rough · 15-20%
- HVAC system (heat pump / geothermal premium)
- Plumbing & electrical rough-in
- Low-voltage, smart home wiring
Interior finishes · 30-40%
- Cabinetry & millwork
- Tile, stone, hardwood
- Paint, trim, doors
- Lighting & plumbing fixtures
Site & soft costs · 15-25%
- Site prep, drives, grading
- Permits, surveys, engineering
- Insurance, supervision, overhead
Lot, tear-down, and site work
The per-square-foot number above is the build itself. Lot and site work are separate. In Bloomfield Hills and Birmingham, infill lots range from $300K for a tear-down candidate up to $1.5M+ for a premium location. Tear-down of an existing house runs $20K-$60K. Site prep (clearing, grading, drives, drainage, utility connections) adds another $25K-$75K on a typical lot, more on hillside or lake-adjacent sites.
Total budget for a 4,500 sq ft luxury custom home on a tear-down infill lot in Bloomfield Hills, with site work included, commonly lands between $2.5M and $4M turn-key, not including land cost. Add land cost to get the all-in number.
What drives the cost up
Finish level
- Cabinetry: stock → semi-custom → custom inset
- Stone: quartz → granite → exotic slab
- Appliances: builder → pro → integrated
- Trim & millwork detail
Mechanical systems
- Geothermal: $35K-$60K added
- Solar: $25K-$60K added
- Smart-home automation: $15K-$80K
- Whole-house water filtration
Architectural complexity
- Custom rooflines
- Multi-level ceilings & volumes
- Curved walls or stairs
- Large window walls
Lot complexity
- Slope or grade work
- Mature tree protection
- Lake frontage setbacks
- Wetland / DEQ review
Timeline
Design & engineering
- 4-8 months
- Architectural, structural, mechanical
Permits & site review
- 2-4 months
- Some municipalities longer
Build
- 14-22 months typical
- 24-30 months on larger / complex
Total
- ~2 years for typical custom
- ~3 years for ultra-luxury
Custom home cost questions.
How much does it cost to build a custom home in Bloomfield Hills?
Custom homes in Bloomfield Hills, Birmingham, and Bloomfield Township in 2026 typically run $350-$500 per square foot for standard custom, $500-$700 per square foot for premium, and $700+ for luxury builds with bespoke millwork, premium stone, and geothermal or solar systems. A 4,500 sq ft custom home in this market most commonly lands between $1.8M and $3.5M turn-key, not including land.
How long does it take to build a custom home?
From groundbreaking to certificate of occupancy, custom homes in Oakland County typically take 14-22 months. Larger or more complex homes run 24-30 months. Design, engineering, and permitting before groundbreaking adds another 4-8 months. So plan on roughly two years from first conversation to move-in.
Do you build on my lot or do you have lots?
We build on your lot. If you don't have one yet, we work with a few realtors who specialize in tear-down and infill lots in Bloomfield Hills, Birmingham, Bloomfield Township, and Beverly Hills and can introduce you. Lot acquisition is typically a separate transaction handled before we get involved with design.
Should I tear down or renovate?
Rule of thumb: if the renovation budget exceeds 60-70% of new-construction cost, building new is almost always the better long-term decision: you get exactly what you want, modern mechanicals throughout, full warranty coverage, and a more efficient envelope. Renovating makes more sense when the existing house has irreplaceable character or location-specific features (lake frontage, mature trees, architectural significance).
What about lot prep and tear-down costs?
Tear-down of an existing house runs $20,000-$60,000 depending on size, materials, and proximity to neighbors. Lot prep (clearing, grading, utilities) adds another $25,000-$75,000. Difficult lots (slopes, mature trees to preserve, lake setbacks) can push site work to $100,000+. Budget this separately from the per-square-foot build number.
Can you do geothermal, solar, or net-zero?
Yes. Geothermal adds roughly $35,000-$60,000 over a high-efficiency conventional system but recovers over 8-15 years through utility savings. Solar adds $25,000-$60,000 depending on system size. Net-zero design with high-performance envelope, geothermal, and solar adds 8-15% to total cost and is a strong fit for the kind of long-tenure clients who build new in this area.