Case Study · Connecticut · Private K-12 School · Conventional
Private School Feasibility Study, Connecticut — A Conventional Worked Case
This is how our independent feasibility study company and consultant team analyzed a campus expansion for an independent K-12 day school in an affluent Connecticut submarket, from the enrollment funnel and net-tuition revenue engine through the debt-service coverage and liquidity covenants a bond issuer or bank must document. It is a representative, anonymized worked example of the methodology — not a specific client or completed financing — set on the Fairfield County Gold Coast and financed with conventional, tax-exempt-bond capital rather than SBA debt.
A capacity expansion for a Gold Coast independent school.
A head of school and board came to our feasibility study company with a campus-expansion plan and a finance committee that needed the enrollment and coverage projections independently tested before the school took on long-term debt. The subject is an established, accredited 501(c)(3) independent K-12 day school of roughly 400 students in an affluent Fairfield County submarket — the Connecticut Gold Coast. The program is a new ~55,000-square-foot academic, STEM, and arts building, a renovation of the classroom space it frees up, and the seat capacity to grow enrollment from about 400 to a stabilized ~470 over three admissions cycles.
Because an independent school is a tuition-dependent going concern rather than a passive real-estate play, the reviewer's question is not “what is the building worth” but “can this specific school fill the added seats and service this specific debt.”4 And because the school is a 501(c)(3) nonprofit, it is not SBA-eligible; the capital routes to a tax-exempt conduit bond or bank direct purchase, underwritten on debt-service coverage, days cash on hand, and enrollment sustainability rather than an owner's equity return.7 Our scope was the independent enrollment, net-tuition, competition, and covenant analysis that supports that credit — the feasibility study a bond issuer or bank relies on.
Representative and anonymized. Every figure below is illustrative of a typical engagement of this type; the school, submarket, and parties are composited, not a real named institution, address, or completed financing.
Enrollment demand and the net-tuition engine.
The demand read starts with school-age households and the enrollment funnel, not a headcount snapshot. The primary market area is a wealthy, low-turnover set of Gold Coast towns whose family formation is sustained by New York-commuter in-migration, layered over the school's own waitlist and re-enrollment history.
The only revenue number that matters for a tuition-dependent school is net tuition per student — gross published tuition minus financial aid and tuition remission — and the discount effect is the sector's quiet margin killer, with NAIS-cohort net tuition falling to roughly 83 percent of gross by 2020–21, down from near 98 percent two decades earlier.3 A defensible study underwrites to net, not published, tuition. On a blended published tuition near $46,000 and a 17 percent financial-aid discount — consistent with an affluent, high-ability-to-pay parent market that runs a lighter discount than the NAIS median 26.4 percent aid rate — net tuition lands at about $38,180 per student.2 Filled cohort by cohort to a stabilized 470 students, that supports net tuition revenue near $17.95 million, the engine the coverage is measured against. Connecticut has no education savings account or voucher program, so this is a parent-paid market: the school carries no third-party-payer ESA credit risk, and the elite tier's pricing power, not a program subsidy, underwrites demand.10
| Demand driver | Basis | Supported figure |
|---|---|---|
| School-age households (PMA) | Affluent Gold Coast towns; NYC-commuter family formation | Stable captive base |
| Ability to pay | Gold Coast wealth; Stamford median household income ~$115,000, higher in Greenwich/Darien/New Canaan9 | Supports ~$46,000 blended tuition |
| Choice regime | Connecticut has no ESA / voucher — parent-paid market10 | Pricing power, no payer risk |
| Net tuition yield | ~17% financial-aid discount; net ~83% of gross3 | ≈ $38,180 net / student |
| Stabilized enrollment | Fill new seats cohort by cohort, ~400 → ~470 | ≈ $17.95M net tuition/yr |
Net-tuition and discount logic grounded in NAIS/SAIS financial-health data and NAIS national tables; see sources 2 and 3. Figures are illustrative of the engagement type.
A deep private-school set, and a strong public alternative.
The Gold Coast carries one of the densest concentrations of independent schools in the country, so the competitive read is not about scarcity of seats — it is about differentiation. The honest headwind is the opposite of most markets: the local public districts are excellent, so the school competes on program, not on public-school flight.
| School | Type | Grades | Enrollment | Read |
|---|---|---|---|---|
| School A | Established independent day | PK–12 | ~1,150 | Flagship; long waitlist, prices at top |
| School B | Independent day (feeder) | K–8 | ~380 | Strong lower-school demand, no upper school |
| School C | Independent college-prep | 6–12 | ~520 | Selective; upper-grade competitor |
| School D | Catholic / parochial | PK–8 | ~410 | Value option; enrollment easing on NCEA trend12 |
| School E | Montessori / progressive | PK–6 | ~240 | Niche, capacity-constrained |
| School F | Christian / faith-based | K–12 | ~600 | Growing “other religious” segment12 |
Competitive set surveyed for the engagement; anonymized. Public-district quality and the parochial/Christian mix were scanned alongside the independent set, consistent with a private-school market study.
The subject sits between the large flagship (School A, which turns families away) and the K-8 feeders (School B), with a differentiated program — small classes, a project-based STEM and arts identity the new building is designed to house — that the comparable set does not fully replicate. A rigorous study does not stop at the standing set: it scans announced capacity, since the flagship's waitlist and the feeders' lack of an upper school are precisely the pipeline the subject converts as students age up. The Catholic and parochial option is a real but easing competitor, with national Catholic enrollment down about 0.6 percent last year even as the Christian “other religious” segment grew about 8 percent.12 The honest counterweight, stated plainly in the study, is that these towns have top-decile public schools, so the subject's value proposition is differentiation and mission, not an escape valve from failing public districts.4
Connecticut macro: affluent and supply-constrained, but slow-growing.
A statewide Connecticut number is indefensible — the state carries one of the most extreme intra-state wealth divergences in the nation — so the read is built to the submarket. On the Gold Coast, wealth and low housing turnover are the tailwind; flat statewide demographics are the discipline.
Connecticut is slow-growing and demographically mature: population ran roughly 3.62 million in the 2024 ACS to about 3.69 million in 2025, near flat, with a net domestic-migration loss of 6,060 in 2023–24 offset by international migration, and 19.5 percent of residents are 65 or older.8 That statewide picture is a headwind for school-age demand and is exactly why a credible study underwrites to the submarket rather than the state. The Gold Coast is the affluent exception: it is a supply-constrained, high-barrier housing market — statewide residential rental vacancy sat at 2.2 percent in Q4 2024, third-lowest in the nation — where restrictive zoning keeps turnover low and long-tenure, high-income families in place, sustaining the parent-paid enrollment base.9
Three Connecticut-specific factors shape the deal. First, property tax: the state's municipal mill rates run a roughly 6.5-times spread — Greenwich 11.28 against Hartford 68.95 for FY2025–26 — and are a live NOI line for taxable assets, but the school is a 501(c)(3) educational institution whose real property is generally tax-exempt, removing a cost line that burdens competing taxable development.5 Second, entitlement: restrictive local zoning across Connecticut's 169 municipalities makes the land-use approval for a campus building a first-order timeline variable, not a formality.11 Third, the backdrop is stabilizing rather than declining: Connecticut enacted its first income-tax rate cut since the mid-1990s effective January 2024 and posted a surplus exceeding $2 billion in FY2025 under its 2017 fiscal guardrails.13 The feasibility test therefore turns on enrollment and coverage, not on optimistic top-line growth.
Why the campus captures its market.
Household wealth, family in-migration, and a land-constrained campus all point the same direction, and the building program converts latent demand into filled seats.
The primary market area carries household incomes far above the level at which full-pay private demand strengthens — Stamford's median household income reached about $115,000 by Q3 2025, and the wealthier Gold Coast towns run well beyond it — and a family base replenished by New York-commuter in-migration that accelerated after 2020.9 Because statewide school-age counts are flat to declining, the study credits the subject with submarket capture, not statewide growth: it fills by taking share of an affluent, differentiated niche and by converting the flagship's overflow and the feeders' graduating cohorts, rather than by riding a rising demographic tide.8
The site does the rest. The subject holds an established, entitled campus in a town where new school capacity is nearly impossible to permit from scratch — a barrier to entry that protects the incumbent. The new academic building adds the specialized STEM and arts space the program has outgrown, lengthens the school day's program depth, and lifts the ceiling on enrollment without diluting the small-class identity families pay for. Deferred maintenance and facility condition on the existing plant are referenced in the study but assessed by a separate building professional; environmental and hazardous-materials review of any pre-1980 structure under AHERA runs in parallel and is not performed by the feasibility consultant.1
The conventional, tax-exempt structure.
Total project cost lands at $24.0 million, financed 60 percent debt and 40 percent equity and fundraising. Because the borrower is a 501(c)(3) nonprofit, the capital is not SBA debt: it is a tax-exempt conduit bond or bank direct purchase, sized to coverage rather than to an owner's leverage appetite.
| Cost component | Amount |
|---|---|
| New academic / STEM / arts building (~55,000 sf) | $17.6M |
| Site work, utilities & athletics infrastructure | $1.9M |
| Renovation of vacated classroom space | $1.6M |
| FF&E, technology & lab / maker equipment | $1.3M |
| Soft costs (A&E, permitting, construction management) | $1.0M |
| Capitalized interest, issuance & financing costs | $0.6M |
| Total project cost | $24.0M |
| Item | Figure |
|---|---|
| Tax-exempt bond / bank debt (60%) | $14.40M |
| Capital campaign pledges & gifts | $7.60M |
| Board-designated funds & reserves (equity) | $2.00M |
| Total equity & fundraising (40%) | $9.60M |
| Term / amortization | 25-year amortization |
| Illustrative rate | ~7.5% fixed |
| Annual debt service (MADS) | ≈ $1.29M |
Structure per tax-exempt conduit conventions under IRC §145 (a Connecticut state health-and-educational-facilities authority as conduit issuer) or a bank direct purchase; typical covenants per Venable/ERIC. See sources 6 and 7.
The eligibility distinction drives the structure. SBA 7(a) and 504 finance a for-profit operating business, so a 501(c)(3) independent school is not SBA-eligible; it accesses tax-exempt debt through a conduit issuer — in Connecticut, the state health and educational facilities authority — that issues “on behalf of” the school under IRC Section 145 while the school bears repayment.7 At $14.40 million the facility sits just above the roughly $10 million level below which a bank direct purchase is typically most cost-effective, so the representative structure is a privately placed or bank-held tax-exempt bond, with a direct purchase as the alternative.6 On a 25-year amortization at an illustrative 7.5 percent, annual debt service (maximum annual debt service, or MADS) is about $1.29 million — the number the projected coverage has to clear. As the independent conventional and institutional read, the study exists to support exactly that: the debt-service coverage, days cash on hand, and MADS-coverage covenants the issuer or bank must document, tested against an independent read of enrollment rather than the school's own projection. In a higher-rate environment coverage binds before leverage, which is why the 40 percent equity-and-campaign layer is sized to keep the loan at a coverable level rather than to a maximum loan-to-cost.
Feasible and bankable, on coverage the covenants can document.
The stabilized model builds net revenues from tuition, auxiliary programs, and a disciplined endowment and annual-fund contribution, nets the school's heavily fixed operating cost, and carries coverage to the covenant and beyond on a graded enrollment ramp.
| Line | Basis | Amount |
|---|---|---|
| Gross tuition & fees | 470 students × ~$46,000 blended tuition | $21.62M |
| Less financial aid & tuition remission | ~17% discount rate3 | ($3.67M) |
| Net tuition revenue | 470 × ~$38,180 net / student | $17.95M |
| Auxiliary & program revenue | Summer, aftercare, athletics, rentals | $0.95M |
| Endowment spending draw | ~$26M endowment at ~5% policy; ~6% of budget6 | $1.30M |
| Annual fund & unrestricted gifts | Haircut to trailing three-year actual | $1.10M |
| Total operating revenue | Net tuition + auxiliary + draw + gifts | $21.30M |
| Salaries & benefits | ~63% of budget (faculty comp + benefits)2 | ($13.35M) |
| Academic & student programs | Instruction, athletics, student life (non-comp) | ($1.60M) |
| Facilities, utilities & maintenance | Plant O&M; high Connecticut electricity cost | ($2.15M) |
| Administration & G&A | Leadership, finance, HR, governance | ($1.45M) |
| Admissions, marketing, technology & insurance | Enrollment, IT, risk | ($0.94M) |
| Total operating expenses (pre-debt service) | Sum of expense lines | ($19.49M) |
| Net revenues available for debt service | Revenue less operating expense | ≈ $1.81M |
Salaries at ~63% of budget sit inside the grounded 60–80% faculty-compensation range; endowment draw funds ~6% of the operating budget, near the 6.7% NBOA benchmark. See sources 2 and 6. Figures are illustrative and foot to the stated bases.
| Year | Stage | Enrollment | Net revenues | Debt-service basis | DSCR |
|---|---|---|---|---|---|
| Year 1 | Ramp (interest-only bridge) | ~415 | ~$1.13M | Interest-only ~$1.08M | 1.05 |
| Year 2 | Building | ~445 | ~$1.61M | Full amortizing ~$1.29M | 1.25 |
| Year 3 | Stabilized | ~470 | ~$1.81M | Full amortizing ~$1.29M | 1.40 |
DSCR computed as net revenues available for debt service divided by the period debt-service obligation. See source 6 for the ~1.10–1.25x coverage covenant convention.
The stabilized 1.40x coverage is the figure the covenant documents, and it clears the roughly 1.10x-to-1.25x DSCR covenant range with real headroom, alongside days cash on hand near 80 days against a ~60-day covenant with a 30-day floor.6 By Year 2 the project already covers fully amortizing debt service at 1.25x. The Year 1 figure of 1.05x is intentionally below the covenant — it is the ramp year, before the added cohorts fill — which is exactly why the structure carries a capitalized-interest / interest-only bridge through stabilization and measures the permanent covenant once enrollment reaches its supportable level. Modeling a full building in Year 1, or ignoring that an entry-class miss compounds through every subsequent grade for six to thirteen years, is the most common way these pro formas fail review; the ramp here is deliberately graded, and the fixed-cost operating leverage that cuts violently on the way down works in the school's favor on the way up as revenue spreads over a largely fixed faculty base.3
Because the borrower is a nonprofit, there is no owner and no equity IRR to compute: the “return” is expressed as coverage headroom, liquidity, and mission capacity, not a levered yield. As a leverage-independent cross-check, stabilized net revenues of $1.81 million against the $14.40 million of debt imply a debt yield of about 13 percent — the leverage-independent risk measure a conventional reviewer applies alongside coverage — and the added seats let the school hold its financial-aid commitment and small-class program rather than cut into them.6 A stress test on the two variables the school is most exposed to — a soft admissions cycle and a widening tuition discount — keeps Year 3 coverage above the covenant, which is what lets the issuer or bank rely on the file.
Verdict: financially feasible and bankable. On independently derived enrollment, a stabilized 1.40x DSCR above covenant, ~80 days cash, and a ~13% debt yield, the projections support the tax-exempt-bond or bank credit.
Independent enrollment, net tuition, competition, and covenant stress.
The engagement was scoped the way a bond issuer and a bank credit committee read it. As an independent feasibility consultant, our role is to test the school's projection against the market, not to restate it — the value of the deliverable is precisely that it carries no stake in the outcome. We built the demand read from the enrollment funnel — inquiries, applications, admits, yield, and re-enrollment — rather than a headcount snapshot, then underwrote the revenue to net tuition per student against a rising discount rate, and graded the ramp cohort by cohort so an entry-class miss cannot be papered over.
The coverage analysis was then stress-tested. We ran debt-service coverage, days cash on hand, and MADS coverage against a soft admissions cycle and a widening financial-aid discount — the two variables a tuition-dependent school is most exposed to — to confirm the covenants still hold. One scope boundary is worth stating plainly: as the feasibility consultant, we reference, but do not perform, the facility-condition and environmental assessments; deferred maintenance and any AHERA hazardous-materials review of a pre-1980 structure are separate professionals' engagements that run in parallel to the study.1 That combination — independent enrollment, net tuition, competition, and stressed covenants — is what lets the issuer or bank rely on the file.
Representative engagement
This is an anonymized, illustrative worked example of our methodology, built on market data current to 2026; figures are representative of a typical engagement of this type and do not depict a specific client, site, or completed transaction.
Underwriting a Connecticut private school? Start with the feasibility study.
Feasibility Study Company prepares independent private-school feasibility and market studies for tax-exempt conduit bonds, bank direct purchase, and conventional capital, built to the coverage and covenant standard your issuer or lender must document. A methodology briefing walks through the enrollment, net-tuition, competition, and DSCR analysis behind a case like this one, calibrated to your submarket and school type.
Request a methodology briefingData sources and dates.
The deal figures are illustrative of the engagement type; the market data that grounds each dimension is real and sourced, drawn from our standing Connecticut, Private K-12 School, and Conventional & Institutional analyses and the primary authorities they cite.
- NCES Private School Universe Survey (PSS) and Digest of Education Statistics, 2023: about 29,730 K-12 private schools enrolling about 4.7 million students in 2021–22, roughly 9% of combined public-plus-private enrollment; the specialized school facility carries constrained going-dark value and deferred-maintenance and AHERA hazardous-materials exposure, assessed by a separate environmental professional, as compiled in the firm's Private K-12 School analysis.
- NAIS, 2024–25 National Tables / Facts at a Glance: average day-school tuition $32,251; nearly $3.6 billion in need-based aid; median 26.4% of students receive aid (median day grant $12,700); instructional/staff salaries about 53.4% of tuition and benefits/payroll about 12.7%, so faculty compensation and benefits run 60–80% of budget.
- SAIS / NAIS FastStats, Financial Health Trends: net tuition revenue fell to roughly 83% (NAIS) and about 88% (SAIS) of gross by 2020–21, from about 98% two decades earlier; a rising tuition discount rate against flat enrollment is the classic pre-death-spiral error, and an entry-class miss compounds through the cohort for six to thirteen years.
- Feasibility Study Company, Private K-12 School asset-class analysis: the market study sizes demand (school-age demographics, choice regime, ability-to-pay, public-school push, competitive and charter density) while the feasibility study tests whether the specific school can fill and fund itself; in affluent no-program markets the elite tier thrives on pricing power while strong local public schools shift the value proposition to differentiation rather than public-school flight.
- Connecticut Office of Policy and Management, FY2025-26 municipal mill rates, via Patch (August 2025): Greenwich 11.28 against Hartford 68.95, a roughly 6.5-times spread on a uniform 70% assessment ratio; 501(c)(3) educational real property is generally exempt from the municipal mill rate.
- Venable LLP and ERIC, “Capital Financing for Private & Independent Schools”: tax-exempt conduit financing under IRC Section 145; bank direct purchase generally most cost-effective below about $10 million; typical covenants (days cash on hand about 60 with a roughly 30-day default floor, DSCR about 1.10x–1.25x, additional-bonds test about 1.1x–1.2x of MADS); Commonfund/NBOA Study of Independent School Endowments (2026), endowment funding about 6.7% of the average operating budget; debt yield (NOI divided by loan) applied as a leverage-independent risk measure per the firm's Conventional & Institutional analysis.
- U.S. Small Business Administration, SOP 50 10 8 (effective June 1, 2025) and 13 CFR 120.110: SBA 7(a) and 504 are limited to for-profit operating businesses, so 501(c)(3) nonprofit schools are not SBA-eligible and instead access tax-exempt conduit bonds issued “on behalf of” the school by a state education or health-facilities authority (in Connecticut, the state health and educational facilities authority) while the school bears repayment.
- U.S. Census Bureau and CTData Collaborative, Vintage 2024 Population Estimates (Connecticut about 3.62 million per the 2024 ACS; net domestic-migration loss of 6,060 in 2023–24) and Data Commons 2025 estimate (about 3.69 million); USAFacts citing the U.S. Census Bureau, 19.5% of Connecticut residents aged 65 and over (2024); NCES/FutureEd projections of public K-12 enrollment below 47 million by 2031, as compiled in the firm's Connecticut and Private K-12 School analyses.
- Apartment List via the Connecticut Office of the State Comptroller economic update (March 2025): residential rental vacancy 2.2% (Q4 2024), third-lowest in the nation; CoStar via Westfair Communications and RentCafe/Yardi Matrix (2025–26): Stamford median household income about $115,000 by Q3 2025; Brookings Institution, Stamford renter-share and in-migration analysis (2024).
- EdChoice and Education Week (2025–26): about 1.5 million students use private-choice programs across the 30 states with programs; Connecticut has no ESA or voucher program and is an affluent, parent-paid private-school market, so the school carries no third-party-payer ESA credit risk.
- CT Mirror, restrictive local zoning across Connecticut's 169 municipalities and the 8-30g affordable-housing appeals framework (February 2026): entitlement difficulty is a first-order timeline variable in any Connecticut development, including institutional and campus construction.
- NCEA Annual Statistical Report, 2024–25: Catholic PK-12 enrollment 1,683,506 in 5,852 schools, down about 0.6% in 2024–25; NCES/PSS: the “other religious,” largely Conservative Christian, segment grew about 8%, framing the parochial-versus-Christian competitive mix.
- Tax Foundation, Connecticut income, corporate, and property-tax data (2026); Governor's office, income-tax rate cut effective January 2024 (first since the mid-1990s); CT Mirror, 2017 fiscal guardrails and a surplus exceeding $2 billion in FY2025 (June 2025).