Arizona ADWR water and pad utility workbook
Arizona Department of Water Resources (ADWR) allocation matters when you stub municipal water to vacant pads or drill new wells on expansion acreage. Lenders model $45–$85/pad/mo utility opex on private well/septic clusters versus $15–$25/pad/mo on Phoenix MUD-connected TOH.
| Utility type | Typical opex/pad/mo | Refi implication |
|---|---|---|
| Municipal water/sewer | $15–$35 | Fastest bank/agency path |
| Private well + septic | $45–$85 | Engineer capacity report required |
| Well + municipal sewer stub | $25–$50 | Document stub timeline in bridge memo |
Investor rule: Request 12-month utility bills by pad at LOI — seller pro forma opex is the #1 Arizona MHC refi surprise. Cross-link: POH vs TOH underwriting.
Arizona mobile home park bridge loans hinge on water utility economics — ADWR well logs, private septic capacity, and municipal stub costs per pad often matter more than headline cap rate. Maricopa/Pinal exurban fill-up from California in-migration supports $1.1M–$1.6M basis on 55–75 pad TOH communities; Tucson and Yuma snowbird corridors trade 10%–15% below Phoenix and require trailing 12-month occupancy, not peak-season broker pro forma. Hub: manufactured home community financing · Refinance: MHP refinance & cash-out.
Qualified Arizona sponsors typically see 8.99%–13.5% interest-only bridge at 65%–75% LTV — permanent bank or agency takeout follows once utilities are municipal and occupancy clears 80%+. Rate bands: MHP loan rates 2026.
Most Arizona broker flow sits under $3M and below the Freddie/Fannie 50-pad agency floor — plan bridge-first capital with a documented refi path: MHP loans under $3M · POH legacy: POH vs TOH.
Arizona MHC segments and basis bands
| Segment | Geography | Basis band | Financing note |
|---|---|---|---|
| Phoenix exurban | Maricopa, Pinal | $1M–$2.2M | Strong fill-up — municipal preferred |
| Tucson fringe | Pima exurban, Vail corridor | $750K–$1.5M | Lower basis |
| Snowbird 55+ | Yuma, Mohave, La Paz | $800K–$1.6M | Seasonal occupancy — model T-12 |
| Colorado River corridor | Parker, Bullhead City fringe | $700K–$1.3M | Overlap with RV parks |
Maricopa County exurban parks at $1.1M–$1.6M on 55–75 pads benefit from California in-migration fill-up thesis. Private well systems add $45–$85/pad/mo utility opex — mandatory in NOI model. ADWR water rights review required on rural acreage expansion.
Worked example — Maricopa County 62-pad TOH
$1.28M — 77% occupancy, municipal water, Phoenix exurban
| Phase | Detail |
|---|---|
| Bridge acquisition | 72% LTV ($921,600) at 11.5% IO |
| Value-add | $88K — pad marketing, shade structures, clubhouse refresh |
| Fill-up | 77% → 89% (55 pads) over 9 months |
| Lot rent lift | +$48/pad ($425 → $473 avg) |
| Stabilized NOI | ~$12,450/mo after opex (includes heat/HVAC reserve) |
| Refi | Arizona regional bank $980K at 7.125%, 1.26x DSCR — month 12 |
Playbook: bridge-to-agency MHP
Arizona diligence checklist
- Well logs and water capacity — private systems common on desert parcels
- Septic per-pad capacity — expansion limits on exurban acreage
- 55+ deed restrictions — snowbird communities: model home turnover
- Heat-related maintenance reserve — HVAC, skirting, roof coatings in opex
- ADWR water rights — verify on rural acreage before pad expansion
- Summer occupancy trough — snowbird parks need T-12, not peak season
Arizona regulatory context: Arizona Department of Housing — manufactured housing
Phoenix exurban vs snowbird 55+ — basis and exit
| Factor | Phoenix exurban | Snowbird 55+ |
|---|---|---|
| Typical basis | $1M–$2.2M | $800K–$1.6M |
| Occupancy | Year-round | Oct–Apr peak |
| Refi path | Regional bank | Bank + Sunbelt agencies |
| Water diligence | Municipal preferred | Well/septic review |
Exit and refinance path
Arizona MHC exit planning centers on water utility type and snowbird seasonality — Phoenix year-round parks refi faster than Yuma 55+ communities.
Regional bank refi (Maricopa/Pinal): Worked example: $980K permanent at 7.125% replaced $921K bridge at 89% occupancy — 1.26x DSCR. Banks credit California refugee demand in fill-up narrative but require trailing rent roll, not migration headlines. Heat-related opex ($35–$55/pad/mo HVAC/skirting reserve) must appear in T-12.
Snowbird 55+ path (Yuma/Mohave): Refi requires October–April occupancy documented across two seasons — summer trough (May–September) compresses DSCR if annualized incorrectly. Model home turnover revenue separately from lot rent when deed restricts age cohort.
Desert well/septic parks: Private well capacity caps pad expansion — ADWR certificate and per-pad gallon/day calculation mandatory before underwriting 85%+ occupancy. Utility opex $45–$85/pad/mo vs $15–$25 municipal — refi LTV drops 5 points on private systems.
Lot rent vs apartment competition: Phoenix exurban sponsors justify +$40–$55/pad lifts by comparing to $1,400–$1,800/mo apartment rent — document in bank refi memo. Cross-program: RV park loans Arizona in Colorado River corridor — different seasonality, shared utility diligence.
Agency path: 50+ pad municipal parks may access Fannie/Freddie MHC — bridge-to-agency MHP playbook.
Pinal County (San Tan/Casa Grande fringe): California in-migration drives +$45–$60/pad lift on 55–70 pad parks at $950K–$1.4M — municipal water preferred over rural well clusters. Tucson/Vail corridor trades 10%–15% below Phoenix on identical pad count with thinner bank appetite — plan seller carry if regional refi delays. Yuma 55+ snowbird: document 4+ home sales annually when age restriction caps rent growth.
Vail/Pima exurban: Lower acquisition basis ($750K–$1.1M) on 40–55 pad TOH with municipal water — faster bank refi than Maricopa at same occupancy when utility opex $15–$25/pad/mo vs desert well clusters at $45–$85.
Related Arizona programs
- RV park loans Arizona — outdoor hospitality sibling
- Fix and flip loans Arizona
- DSCR loans Arizona
- Hard money lenders Arizona
Ready to underwrite a Maricopa or Pinal pad count? Send trailing 12-month occupancy, well/municipal utility map, and POH habitability scope — Arizona MHC scenario · desert MHC programs · (833) 264-7776
Arizona MHC underwriting focus (2026)
- Water/ADWR: Private well yield and ADWR allocation on expansion pads — engineer report before IO if stubbing municipal later
- Occupancy: Trailing 12-month pad count including monsoon-season vacancy; reject peak snowbird pro forma alone
- POH habitability: HVAC and skirting capex on desert POH before modeling lot-rent lift
- Exit: Name Arizona community bank or agency MHC takeout — Freddie 50-pad floor documented pre-close
Maricopa/Pinal sponsors: upload pad map, ADWR well log, and T-12 — Arizona pad-count file · Arizona commercial programs · (833) 264-7776.
Arizona MHC pad-count diligence
Maricopa County exurban refi turns on municipal water stub to vacant pads and ADWR well allocation on any expansion — rural well clusters at $45–$85/pad/mo utility opex refi slower than Phoenix MUD-connected TOH at 77%+ occupancy. Tucson basin parks need separate comp set from Maricopa; Yuma 55+ snowbird parks document 4+ home sales annually when age restriction caps rent growth.
Maricopa/Pinal sponsors: upload pad map, ADWR well log, and T-12 — Arizona pad-count file · Arizona commercial programs · (833) 264-7776.
Arizona park / niche segment gates — Phoenix (2026)
- MHP underwriting on Phoenix — pad count, utility infrastructure, and ~0.62% tax on operating entity.
- Monsoon and habitation heat stress HVAC scope — Phoenix exurban comps do not price Tucson basin ARV — segment comps do not cross into vanilla SFR Tucson pricing.
- Bridge 8.99%–13.5% IO with documented operating history or value-add scope before agency take-out.
Phoenix MHP bridge 8.99%–13.5% IO · Arizona hard money · (833) 264-7776.