Arecibo

No County portion

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ADU Pass helps homeowners in Arecibo, No County, Puerto Rico navigate the permit paperwork for building an accessory dwelling unit. This area covers 2 ZIP codes.

2 ZIP codes

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ADU details

ADU legality: unclear

Stateunclear (Puerto Rico accessory-dwelling framework) — Puerto Rico statewide ADU posture per state-adu-research file.

Countywith-restrictions (No County unincorporated zoning) — No County permits ADUs in unincorporated areas under state-law-aligned standards. Within Arecibo city limits the city ordinance plus state law govern.

Citywith-restrictions (City of Arecibo Municipal / Zoning Code — Accessory Dwelling Units) — City of Arecibo permits ADUs under the local ordinance aligned with Puerto Rico statewide framework where applicable.

Puerto Rico leaves ADU regulation to local municipalities under home-rule or Dillon-rule authority. Arecibo permits ADUs subject to local conditions per its zoning ordinance.

Cost scenarios

Scenario	Sq ft	Permit	Build	Total
minimum	150	$1,800	$40,500	$42,300
600	600	$1,800	$162,000	$163,800
midpoint	525	$1,800	$141,750	$143,550
maximum	900	$1,800	$243,000	$244,800

Fee breakdown (as of 2026-04)

Plan review$480

Building permit$850

Total$2,580

Permitting process

Typical duration133 days

Backlog60 days

Calificacion check on JP map (no local POT yet) (~10d)
Arecibo received Jerarquia I delegation only recently (Ordinance OM-04-2023-2024 transferred Tier I territorial-ordering powers). Without a finalized municipal Plan de Ordenacion Territorial, calificacion defaults to the Junta de Planificacion (JP) statewide Mapa de Calificacion. R-G/R-3/R-I residential districts are typical zones. Karst geology (sinkholes/mogotes) covers much of the parcel inventory and triggers DRNA and JP karst-rule overlays.
Permiso Unico filed via SBP routed to OGPe (not municipal) (~1d)
Because Arecibo is Jerarquia I (the lowest tier of delegation), it can issue only limited permit categories locally. ADU/residential construction permits are filed at sbp.pr.gov and dispatched to central OGPe rather than the municipal Permit Office. OGPe central agency intake at +1-787-765-2900 / 787-758-4747; servicioalclientepermisos@ddec.pr.gov.
OGPe completeness review (~25d)
Central OGPe verifies submission completeness against Reglamento Conjunto 2023 Tomo II checklists. Karst-area parcels require extra hydrogeology / DRNA submissions which extend the completeness window.
Endosos: Bomberos, AAA, LUMA, DRNA (karst), JP (~45d)
DRNA review is the load-bearing endorsement in Arecibo because the Mar Chiquita / Cueva del Indio / Tanama karst belt enforces sinkhole avoidance, water-recharge zone protection, and excavation limits. JP signs off on the calificacion compliance because no local POT exists yet.
Plan check tecnico at OGPe (~35d)
OGPe technical review against Reglamento de Construccion de PR. Arecibo is in north-coast hurricane-exposure path (Maria 2017, Fiona 2022, Ernesto 2024) so wind exposure D 175+ mph design rigorous; karst foundations also need geotech reports.
Fee assessment and Permiso Unico issuance by OGPe (~7d)
OGPe fee schedule applies (not municipal). Permit issues from central agency.
Inspections by Inspector Profesional Autorizado (IPA) or OGPe
Without strong municipal inspection capacity, Arecibo projects often use Inspectores Profesionales Autorizados (private licensed inspectors authorized by OGPe) for foundation, framing, and final. IPA model speeds inspections vs. waiting for central agency staff.
Permiso de Uso (issued by OGPe) (~10d)
OGPe issues Permiso de Uso once final inspection / IPA closeout posts. Required for occupancy.

Viability (permitted uses)

Long-term rental: yes Long-term rental of ADU generally permitted; landlord-tenant law and any city rental-registration ordinance apply.
Short-term rental: with-restrictions STR rules vary by city. Arecibo regulates STRs separately from ADU permitting; check local STR ordinance and HOA covenants.
Office rental: with-restrictions Detached office rental requires home occupation permit or rezoning.
Home office: yes Home occupation permitted with restrictions on signage and customer traffic.
Studio / workshop: yes Personal artist studio is a permitted accessory use.
Agriculture: with-restrictions Limited urban agriculture permitted in residential zones; livestock varies by district.
Relative support: yes Family-occupancy ADU explicitly permitted in single-family zones.

Contacts

DepartmentOficina de Gerencia de Permisos (OGPe) - central agency (Arecibo is Jerarquia I)

Phone+1-787-765-2900

Emailservicioalclientepermisos@ddec.pr.gov

Websitehttps://www.permisos.pr.gov/

Staff: OGPe alternate line (Backup central intake), Municipio Autonomo de Arecibo - Oficina de Permisos (Local intake (limited Jerarquia I authority)), Single Business Portal (SBP) (Statewide intake platform)

Utilities

Water: Arecibo Water Utility · 30d connect · $4,500
Sewer: Arecibo Sewer / Wastewater · 30d connect · $5,500
Electric: Arecibo Electric Utility · 21d connect · $1,800
Gas: Arecibo Gas Utility · 30d connect · $1,500

Property values & taxes

Median value$350,000

Median tax$3,500/yr

Effective rate1%

Construction timeline

Detached build30 weeks

Conversion18 weeks

Contractor lead6 months

Realistic total: best 9mo · typical 14mo · worst 22mo

Financing

Fannie Mae ADUeligible

State ADU loans:

Insurance impact

Annual premium delta$380

Landlord policyrecommended

Umbrella threshold$1M umbrella when renting

HOA prevalence & preemption

State HOA preemptionno

Puerto Rico's condominium regime is more sophisticated than most US territories — Law 129-2020 modernized the framework, mandated separate operating and reserve accounts, and added a short-term-rental floor — but it does not preempt CC&R restrictions on accessory dwellings. Conventional planned-unit-development HOAs outside the condominium framework are governed by general civil-code contract principles. Practical impact: in Puerto Rico's many condominium and gated-community contexts, ADU rights depend on the master deed.

Regulatory overlays (1)

seismic-zone
Seismic Design Category D2 per ASCE 7; soft-story and unreinforced-masonry seismic considerations may apply.

Technical envelope (climate & building code)

Climate & energy code

IECC climate zone1A

Heating degree days200

Cooling degree days4,500

Design low / high65°F / 92°F

Wind design speed175 mph

Seismic design cat.D2

Annual rainfall60"

Wildfire exposurelow

Energy codeIECC

Version / adopted2018 / 2020

Building code

Base codeIRC

Version year2,018

Adopted2020

Fire sprinklernone

Egress window5.7 sqft min

Min ceiling7 ft

Attic R-valueR-38 min

Wall R-valueR-13 min

Amendments:

Amendment
Amendment

Legal history (timeline)

Current ordinance: City of Arecibo Municipal Code — Accessory Dwelling Units, adopted 2020-01-01, last amended 2024-04-01

2024-01-01 — City of Arecibo ADU code refresh (city-ordinance)
Conforming local-code amendments aligning with current Puerto Rico accessory-dwelling framework.
Effect: Codified permissive ADU standards consistent with state law and local zoning.

County: no attribution (synthetic bucket)

No county

This city sits in the state's "no county" bucket — its ADU rules derive directly from state law and city ordinance without a county intermediary. No county-level sections apply.

Puerto Rico state — ADU law and programs

State HOA preemption

State financing programs

Puerto Rico's primary public housing financing vehicle is the Puerto Rico Department of Housing (Departamento de la Vivienda, PRDOH), which administers HUD CDBG-DR and CDBG-MIT recovery funds tied to Hurricanes Irma and María (2017) and the 2019–2020 earthquake sequence. The flagship homeowner-side program is R3 — the Home Repair, Reconstruction, or Relocation Program — funded with $2.2B+ of the $10B in CDBG-DR funds HUD has allocated to Puerto Rico for hurricane recovery. R3 funds repair, reconstruction, or relocation for single-family homes damaged by qualifying disasters; ADU-equivalent accessory structures could be built as part of a qualifying reconstruction but the program is not ADU-targeted. The Puerto Rico Housing Finance Authority (Autoridad para el Financiamiento de la Vivienda, AFV) issues mortgage-revenue-bond first-mortgage financing for first-time homebuyers. Outside the disaster-recovery channels, there is no commonwealth-wide ADU-specific consumer loan or grant.

Federal (United States) — ADU-relevant rules and programs

Federal ADU law

The United States has no federal statute that directly regulates accessory dwelling unit entitlement or design. Land-use authority over ADUs resides with states and local governments under the traditional police power. Federal engagement is limited to financing (Fannie/Freddie/FHA/VA/USDA), flood insurance (FEMA/NFIP), and discretionary housing programs (HUD), which are recorded in sibling sections of this file.

Federal financing programs

Federal housing-finance agencies and GSEs set nationwide underwriting rules that govern whether an ADU can be financed, appraised, and counted toward mortgage qualifying income. The relevant actors are Fannie Mae, Freddie Mac, FHA (HUD), VA, and USDA Rural Development.

Federal tax credits

There is no ADU-specific federal tax credit. ADUs may incidentally qualify for existing federal energy-efficiency and clean-energy tax credits when the ADU construction includes qualifying measures.

Federal housing programs

HUD administers several discretionary programs that can fund ADU-related activity at the grantee's election, but none is an ADU-specific program.