Buying land or deciding whether to renovate or rebuild is among the largest financial commitments most people ever make — yet it is often done with incomplete information. 3D Space Potential Assessment grounds this decision in real data rather than intuition.
Assessing Land Potential Before Purchase
Before signing a land purchase contract, a 3D Potential Assessment answers critical questions:
FAR and Maximum Buildable Area Calculate Floor Area Ratio (FAR) under Bangkok Building Control regulations and compare against the Space Program requirement: - 200 sq.wa. plot, FAR 2.0 → maximum buildable area 3,200 sqm - Only 500 sqm required → high upside potential remains in the land - Site Coverage must not exceed 50% → minimum 400 sq.wa. of open/garden area 2. Setback Constraints and Lot Efficiency Score Analyze legally required Setbacks (1–3 meters depending on the road) to verify whether the remaining area accommodates the intended house form. Irregular lot shapes (triangular, L-shaped, narrow-long) have low Lot Efficiency Scores, meaning usable area is significantly less than the raw numbers suggest.
Comparative Scenario Analysis: A vs B vs C Build multiple 3D scenarios for simultaneous comparison: - Scenario A: 2-story single house, 400 sqm floor area - Scenario B: 3-story single house, 500 sqm floor area with garden - Scenario C: Upper-lower duplex — own the upper unit, rent the lower for Passive Income
Evaluating Renovation vs Rebuild with 3D
For older homes requiring improvement, 3D Assessment supports the decision: Step 1: As-Built 3D Scan Create a 3D model of the current home as it actually exists, including: - Load-bearing walls (cannot be removed) vs non-structural walls (can be opened) - Column and beam positions - Existing plumbing and electrical routing Step 2: Renovation Potential Analysis The 3D Model shows: if the non-structural wall is removed, how much more open does the space become? If a Mezzanine is added in a high-ceiling room, how many square meters of usable space are gained? If the flat roof becomes a Rooftop Terrace, what is the estimated property value increase?
Step 3: Value Uplift Analysis Estimate value increase from each intervention and compare against cost: - Opening one wall: cost THB 30,000–80,000, Value Uplift THB 150,000–300,000 - Adding a bathroom: cost THB 100,000–200,000, Value Uplift THB 200,000–500,000 - Full Smart Home installation: cost THB 100,000–300,000, Value Uplift THB 150,000–500,000
Bangkok Building Control Regulations Context
The 3D Model verifies compliance with the Thai Building Control Act before permit application: - Maximum building height 9 meters for most residential zones - FAR and OSR (Open Space Ratio) by land type - Setback distances from road frontage and property boundaries Pre-checking through 3D prevents illegal designs that require complete redesign.