2. Approved Building Plan & Planning Permission (අනුමත ගොඩනැගිළි සැලැස්ම)

What it is:
Official approval from local government authorities—such as the Colombo Municipal Council (CMC), Urban Development Authority (UDA), or your local Pradeshiya Sabha—that your architectural and structural plans comply with zoning, safety, and building regulations.

Why it’s mandatory:
● Legalizes your design
● Ensures compliance with setback, height, and land-use rules
● Without it, construction is illegal and can be demolished

Documents needed for submission:
● Completed application form
● Certified copy of land deed
● Architectural plans signed by a registered architect
● Structural plans approved by a chartered engineer
● Site plan with access and boundaries marked

Approval time:
Typically 4 to 8 weeks, depending on the local authority.

3. Building Permit (ගොඩනැගිළි අවසරපත්‍රය)

What it is:
The final authorization from your local council that allows physical construction to begin. This is different from planning permission—it’s the official green light to build.

Why it’s mandatory:
● Legal requirement to commence construction
● Municipal officers conduct inspections based on this permit
● Needed for utility connections (electricity, water, sewage)

Keep this permit:
● Displayed visibly at the construction site
● Accessible for site inspections at all times

4. Certified Boundary Survey Report (සීමාවන් හඳුනාගැනීමෙ වාර්තාව)

What it is:
A formal report prepared by a licensed surveyor that marks the exact boundaries, dimensions, and elevation levels of your land.

Why it’s mandatory:
● Prevents boundary disputes with neighbors
● Ensures construction stays within legal plot limits
● Often required by banks before releasing loans

What the report includes:
● Exact location of boundary pegs
● Measurements in meters
● Topography details and access points
● Official seal and signature of the licensed surveyor

Note: Under Sri Lanka’s Bimsaviya land registration system, a Land Parcel Identification Number (LPIN) may also be required.

5. Construction Agreement with Your Contractor (කොන්ත්‍රාත්තුව )

What it is:
A legally binding contract between you and your builder that details every aspect of the project: scope, materials, costs, timeline, and responsibilities.

Why it’s mandatory:
● Prevents misunderstandings and disputes
● Protects against budget overruns and delays
● Provides legal recourse if work is substandard or incomplete

Key clauses for Sri Lanka:
● Detailed scope of work
● Total cost & milestone-linked payment schedule
● Start and completion dates
● Material specifications (brand, grade, quality)
● Warranty period (usually 12–24 months)
● Dispute resolution process (mediation or arbitration)

⚖ Recommendation: Have the agreement reviewed by a lawyer familiar with Sri Lankan construction law.

Risks of Building Without Proper Documents

● Stop-work orders from local authorities
● Heavy fines and penalties
● Demolition of unauthorized structures
● Lengthy legal battles with neighbors or the state
● Difficulty selling or mortgaging the property later
● Safety risks due to unapproved structural plans

Pre-Construction Checklist

● Land deed verified and updated
● Planning permission approved by local authority
● Building permit obtained and displayed on-site
● Boundary survey report certified by a licensed surveyor
● Detailed construction agreement signed by both parties