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Guided estimate
Chapter 1 · Lesson 1.5Project Definition
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01 Chaos

Now your project has a shape

Disconnected numbers can finally describe the same building.

You started with fragments. Purpose, plot, footprint, floors and total constructed area can now sit inside one coherent definition.

Connect the fragments
1,200 sq ftplot G+2intent 3 BHKbrief ₹50 lakhbudget idea Self usepurpose

02 Illusion

A project is not defined just because several numbers are available.

The numbers need relationships. The same 3 BHK brief can feel generous in one building and compressed in another.

1,200 sq ft plotstill needs

A permissible and sensible footprint.

G+2still needs

The actual area of each constructed level.

3 BHKstill needs

How the rooms fit the floor area and purpose.

₹50 lakhstill needs

Whether the budget suits the scale and specification.

Facts become useful when they begin describing the same building.
Next · Write the definition

03 Shift

Turn the fragments into one project statement.

One is a list. The other is a working definition that can guide design and budgeting.

Before · fragment list

“1,200 sq ft, G+2, 3 BHK, self use.”

After · working definition

“I am planning a self-use family home on a 1,200 sq ft plot. I am currently considering Ground + 2 with an illustrative 900 sq ft working floor plate, giving a preliminary total of around 2,700 sq ft if all three levels are similar.”

Disconnected project facts becoming one coherent working building definition
PurposeHome for Yourself
Plot1,200 sq ft
FloorsG+2
Built-up≈ 2,700 sq ft
Next · Give every number a job

04 System

Now every part of the definition has a job.

The next chapters can ask better questions because the project has a defined starting point.

  1. Purpose

    What deserves priority.

  2. Plot

    The land context.

  3. Footprint

    How the building occupies the land.

  4. Floors

    How the building grows vertically.

  5. Built-up

    The approximate scale of construction.

Purpose, plot, footprint, floors and built-up area forming one connected project definition
Next · Separate fact from assumption

05 Craft

Separate what you know from what you are still assuming.

A calculator, sketch or early conversation can create a useful working assumption. It does not automatically create an approved fact.

Known

Plot: 1,200 sq ft.
Purpose: self use.

Current intent

Ground + 2.

Working assumption

Approximately 900 sq ft floor plate.

Derived estimate

Approximately 2,700 sq ft total constructed area.

Still to verify

Planning controls, actual footprint, final design and final area calculation.

Project information classified as known, intended, assumed, derived or still to verify

Chapter 1 · What now holds together

  • Numbers without context lead to wrong conclusions.
  • Plot size is not the same as house footprint.
  • Additional floors create floor area, not more land.
  • Built-up area begins to describe construction scale.
  • A good project definition separates facts from assumptions.
Next · Classify the project

06 Exercise

Which facts are known, intended, assumed or calculated?

This is not an arithmetic test. It checks whether you know how much confidence to place in each current project number.

Classify all four items, then review.

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