3-story wood V-A walkup, no retail (concept omits ground-floor commercial along this stretch of Leonard). Tuck-under parking at grade (15 spaces = 1.25/unit). User overrode AI unit mix to 4×1BR + 6×2BR + 2×3BR to maximize door count — the 1BR block captures Creston's young-professional demand.
Why this scenarioDefault BALANCED scenario using engine-computed numbers for dashboard display.
| Unit Type | Avg SF | Count | Rent (Low / Base / High) | Status | Note |
|---|---|---|---|---|---|
| 1 BR | 650 | 4 | $1400 / / $1650 | Accepted | |
| 2 BR | 900 | 6 | $1800 / / $2050 | AI | |
| 3 BR | 1100 | 2 | $2300 / / $2550 | AI |
| Line item | Total | % of TDC | |
|---|---|---|---|
| Acquisition | $653,400 | 14.7% | |
▸▾Land acquisition$653,40014.7%Formula lot SF × $/SF heuristic by zoning category Inputs
source: baseline | |||
| Hard Costs (CSI) | $2,960,564 | 66.5% | |
▸▾ 1General Requirements — General Requirements$207,2404.7%Quantity × Rate 12,750 SF_GBA × $16.25 = $207,240 source: baseline | |||
▸▾ 3Concrete — Concrete / Foundations$236,8455.3%Quantity × Rate 12,750 SF_GBA × $18.58 = $236,845 source: baseline | |||
▸▾ 4Masonry — Masonry$118,4232.7%Quantity × Rate 12,750 SF_GBA × $9.29 = $118,423 source: baseline | |||
▸▾ 5Metals — Structural Steel / Framing$266,4516.0%Quantity × Rate 12,750 SF_GBA × $20.90 = $266,451 source: baseline | |||
▸▾ 6Wood, Plastics, and Composites — Rough & Finish Carpentry$236,8455.3%Quantity × Rate 12,750 SF_GBA × $18.58 = $236,845 source: baseline | |||
▸▾ 7Thermal and Moisture Protection — Thermal & Moisture Protection$118,4232.7%Quantity × Rate 12,750 SF_GBA × $9.29 = $118,423 source: baseline | |||
▸▾ 8Openings — Doors, Windows, Storefront$148,0283.3%Quantity × Rate 12,750 SF_GBA × $11.61 = $148,028 source: baseline | |||
▸▾ 9Finishes — Finishes (drywall, flooring, paint)$296,0566.7%Quantity × Rate 12,750 SF_GBA × $23.22 = $296,056 source: baseline | |||
▸▾ 10Specialties — Specialties$59,2111.3%Quantity × Rate 12,750 SF_GBA × $4.64 = $59,211 source: baseline | |||
▸▾ 12Furnishings — Furnishings / Appliances$88,8172.0%Quantity × Rate 12,750 SF_GBA × $6.97 = $88,817 source: baseline | |||
▸▾ 14Conveying Equipment — Elevators / Conveying$88,8172.0%Quantity × Rate 12,750 SF_GBA × $6.97 = $88,817 source: baseline | |||
▸▾ 21Fire Suppression — Fire Suppression$59,2111.3%Quantity × Rate 12,750 SF_GBA × $4.64 = $59,211 source: baseline | |||
▸▾ 22Plumbing — Plumbing$236,8455.3%Quantity × Rate 12,750 SF_GBA × $18.58 = $236,845 source: baseline | |||
▸▾ 23Heating, Ventilating, and Air Conditioning (HVAC) — HVAC$296,0566.7%Quantity × Rate 12,750 SF_GBA × $23.22 = $296,056 source: baseline | |||
▸▾ 26Electrical — Electrical$266,4516.0%Quantity × Rate 12,750 SF_GBA × $20.90 = $266,451 source: baseline | |||
▸▾ 27Communications — Communications / Data$14,8030.3%Quantity × Rate 12,750 SF_GBA × $1.16 = $14,803 source: baseline | |||
▸▾ 28Electronic Safety and Security — Security / Access Control$14,8030.3%Quantity × Rate 12,750 SF_GBA × $1.16 = $14,803 source: baseline | |||
▸▾ 31Earthwork — Earthwork$59,2111.3%Quantity × Rate 12,750 SF_GBA × $4.64 = $59,211 source: baseline | |||
▸▾ 32Exterior Improvements — Exterior Improvements$88,8172.0%Quantity × Rate 12,750 SF_GBA × $6.97 = $88,817 source: baseline | |||
▸▾ 33Utilities — Site Utilities$59,2111.3%Quantity × Rate 12,750 SF_GBA × $4.64 = $59,211 source: baseline | |||
| Soft Costs | $30,492 | 0.7% | |
▸▾Construction-period property taxes$30,4920.7%Formula land value × land millage × construction years Inputs
source: baseline | |||
| Financing | $90,743 | 2.0% | |
▸▾Lender fees / origination$17,8510.4%Formula loan amount × lender fee bps Inputs
source: baseline | |||
▸▾Construction loan interest$72,8921.6%Formula 0.50 (avg outstanding) × loan amount × construction rate × construction years Inputs
source: baseline | |||
| Insurance | $14,803 | 0.3% | |
▸▾Builder's risk insurance$14,8030.3%Formula 0.50% × hard cost Inputs
source: baseline | |||
| Reserves | $74,813 | 1.7% | |
▸▾Operating reserve (6 months OpEx)$44,8881.0%Formula 6 months × monthly stabilized OpEx Inputs
source: baseline | |||
▸▾Lease-up operating reserve$29,9250.7%Formula lease-up months × monthly stabilized OpEx × 50% (avg occupancy shortfall) Inputs
source: baseline | |||
| Marketing + Leasing | $22,500 | 0.5% | |
▸▾Marketing + leasing commissions (initial lease-up)$22,5000.5%Formula 1 month × gross potential rent (one-time) Inputs
source: baseline | |||
| Total Development Cost | $4,448,679 | 100% | |
| Sources | Amount |
|---|---|
| Construction / Permanent Loan (debt) | $1,785,100 |
| Sponsor / LP Equity (equity) | $2,663,579 |
| Total Sources | $4,448,679 |
| Uses | Amount |
|---|---|
| Hard Costs | $2,960,564 |
| Soft Costs | $148,915 |
| Contingency | $177,634 |
| GC Fee | $162,831 |
| Developer Fee | $142,477 |
| Other / Reconciliation | $856,258 |
| Total Uses | $4,448,679 |
Holds the concept, rents, hard cost, and debt assumptions constant. Solves for the maximum acquisition cost that still meets the targets you set, accounting for the soft-cost ripple (loan amount, construction interest, reserves all re-resolve as land moves).
x — leave blank to ignore
% — leave blank to ignore
exit at year N
Computed from current scenario inputs by re-running the engine for each cell.
| Cost ↓ / Rent → | -10% | BASE | +10% |
|---|---|---|---|
| +10% | 1.08 | 1.20 | 1.32 |
| BASE | 1.08 | 1.20 | 1.32 |
| -10% | 1.08 | 1.20 | 1.32 |
| Gross Potential Rent | $270,000 |
| Vacancy Loss (5%) | $-13,500 |
| Effective Gross Income | $256,500 |
| Operating Expenses (35% of EGI) | $-89,775 |
| NOI | $166,725 |
| ÷ Exit Cap (6.00%) | $2,778,750 |
| Yr | Phase | Revenue | OpEx | NOI | Debt Service | Cash Flow | Equity Flow |
|---|---|---|---|---|---|---|---|
| 0 | CONSTRUCTION | $0 | $0 | $0 | $0 | $0 | $-2,283,067 |
| 1 | CONSTRUCTION | $0 | $0 | $0 | $0 | $0 | $-380,511 |
| 2 | LEASE_UP | $128,250 | $89,775 | $38,475 | $138,938 | $-100,462 | $-100,462 |
| 3 | STABILIZED | $262,913 | $91,571 | $171,342 | $138,938 | $32,405 | $32,405 |
| 4 | STABILIZED | $269,485 | $93,402 | $176,083 | $138,938 | $37,146 | $37,146 |
| 5 | STABILIZED | $276,222 | $95,270 | $180,953 | $138,938 | $42,015 | $42,015 |
| 6 | STABILIZED | $283,128 | $97,175 | $185,953 | $138,938 | $47,015 | $47,015 |
| 7 | STABILIZED | $290,206 | $99,119 | $191,087 | $138,938 | $52,150 | $52,150 |
| 8 | STABILIZED | $297,461 | $101,101 | $196,360 | $138,938 | $57,423 | $57,423 |
| 9 | STABILIZED | $304,898 | $103,123 | $201,775 | $138,938 | $62,837 | $62,837 |
| 10 | STABILIZED | $312,520 | $105,186 | $207,335 | $138,938 | $68,397 | $68,397 |
| 11 | SALE | $320,333 | $107,289 | $213,044 | $138,938 | $74,106 | $2,092,004 |
| Field | Value | Source | Confidence | State | Note |
|---|---|---|---|---|---|
| concept.unitMix | {"mix":[{"count":8,"bedrooms":2},{"count":4,"bedrooms":3}]} | unit-mix-v1 | LOW | Overridden | Per-unit lot-area minimums + small floorplate call for smaller units to maximize door count; 1BR demand strong in Creston |
| zoning.envelope.maxFar | null | zoning-interpret-v1 | HIGH | Accepted | Base district TN-TBA permits FAR n/a (density-per-acre controls). |
| costs.adjustmentPct | 0.03 | cost-adjustment-v1 | MEDIUM | Accepted | Grand Rapids hard-cost premium ~3% above raw industry baseline due to labor tightness. |
| concept.unitTypes[2].rentBase | 2425 | rent-estimate-v1 | LOW | Pending | 3BR estimated at $2425/mo per comps within 1mi (CoStar Q1-2026, Rentometer, Zillow); sfAvg 1100sf. |
| concept.unitTypes[1].rentBase | 1925 | rent-estimate-v1 | MEDIUM | Pending | 2BR estimated at $1925/mo per comps within 1mi (CoStar Q1-2026, Rentometer, Zillow); sfAvg 900sf. |
| concept.unitTypes[0].rentBase | 1525 | rent-estimate-v1 | MEDIUM | Accepted | 1BR estimated at $1525/mo per comps within 1mi (CoStar Q1-2026, Rentometer, Zillow); sfAvg 650sf. |
| concept.parkingSpaces | 15 | concept-v1 | HIGH | Pending | 15 spaces satisfies the TN-TBA ratio of 1.5/unit (and retail minimums where applicable). |
| concept.totalUnits | 12 | concept-v1 | HIGH | Accepted | AI sized the program at 12 units based on the buildable envelope and TN-TBA form-based standards. |
| Field | Old → New | Note | When |
|---|---|---|---|
| concept.unitMix | {"mix":[{"count":8,"bedrooms":2},{"count":4,"bedrooms":3}]} → {"mix":[{"count":4,"bedrooms":1},{"count":6,"bedrooms":2},{"count":2,"bedrooms":3}]} | Per-unit lot-area minimums + small floorplate call for smaller units to maximize door count; 1BR demand strong in Creston | 4/28/2026 |