Technical Field Guides
for Alicante & Costa Blanca Plots

Straightforward engineering guidance on town-hall permits, limestone rock breaking, off-grid septic systems, and storm drainage.

Read Guides Request Quote

Since 1972

Over five decades of civil engineering

Public & Global Scale

City Councils, Regional Gov & Energy Giants

Direct Fleet

From major infrastructure to local pools & plots

Practical Field Knowledge

What to Know Before Breaking Ground on Your Plot

Written by our site managers for villa owners, architects, and builders: what local town halls require, how limestone affects cost, and how to prevent storm or drainage failures.

Permits & Compliance

1. Town-Hall Permits for Pool, Basement & Retaining Wall Excavation

In municipalities such as Alicante, Mutxamel, El Campello, San Juan, Elche, and Torrevieja, any structural earthwork requires a municipal permit or technical filing (*obra menor/mayor*), along with proof of legal soil and rubble disposal.

Official RCD Waste Certificate: Town halls require traceability for excavated soil and demolition debris. Because we operate our own authorized RCD recycling facility, we issue official disposal certificates for your architect and council file.
Retaining Walls & Under-Builds: Higher escollera walls and under-build basement excavations require proper structural calculation to protect boundary lines.

View swimming pool excavation

Local Geotechnics

2. Limestone & Caliche Bedrock: How Rock Changes Cost & Timelines

Across hillside plots in Busot, Mutxamel, Coveta Fumá, Finestrat, Altea, and parts of Elche, hard *caliche* crust or solid limestone frequently appears within 60 cm of the surface, requiring heavy hydraulic rock breakers.

Output difference: Soft soil yields 150–250 m³/day; solid limestone with a hydraulic hammer averages 35–70 m³/day depending on rock fracturing.
Direct fleet advantage: We deploy our own 20–30t excavators with breakers without waiting on rentals. Estimate the difference in our cost calculator or check local soil strata in the geotechnical visor.

View rock earthmoving services

Rural Villas & Fincas

3. CE Biological Septic Tanks & Underground Cisterns (Aljibes)

Country villas and fincas in Elche, Catral, Dolores, Crevillente, Hondón, and Orihuela without municipal mains sewage must replace old cesspits with watertight CE-certified biological treatment tanks, alongside buried water cisterns.

Proper bedding: A leveled concrete base slab, washed sand surround (so sharp stones never puncture the tank), and a percolation trench where permitted.
Immediate tanker fill: Newly buried cisterns should be filled promptly with our water tanker trucks to equalize ground and water-table pressure in Vega Baja.

View septic tanks & cisterns

DANA Storm Defense

4. Protecting Villas & Warehouses Against Torrential Rain (DANA)

During autumn DANA storms across Vega Baja and the Costa Blanca coast, runoff follows natural gullies and low-lying boundaries. The two strongest preventative measures are perimeter French drains and free-draining limestone *escollera* walls.

Perimeter French Drains: Upslope interceptor trenches lined with non-woven geotextile, perforated pipe, and washed gravel to divert runoff away from basements.
Escollera Walls & Channel Grading: Limestone retaining walls and drainage ditch profiling to stop road washouts and mudslides.

View DANA flood protection & cleanup

Accredited Contractor: Since 1972 · REA & RERA Registered · Own RCD Plant (LER Certificates) · Public Liability Insurance · CIF B53970588

Company Credentials →

Need Reliability for Your Next Project?

Contact our technical management team to review site viability and prepare a direct execution quote.

Request Technical Study Call Head Office

Technical Field Guides for Alicante & Costa Blanca Plots