GreenNirman — India's Green Building Assessment Platform

What Is GreenNirman

A full assessment platform,
not a calculator.

Enter your building. Get a score, compliance report, lifecycle cost, and PDF — instantly. No consultant. No fees. No data upload.

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758 Districts — All of India

Every district across all 36 states and UTs. Seismic zone (IS 1893), flood risk (NDMA), soil type (NBSS), water scarcity (CGWB), and construction cost (CPWD DSR 2024) loaded automatically on selection.

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NASA POWER Climate Data

21-year monthly averages (2000–2020) for 670 districts: T2M temperature, RH2M humidity, ALLSKY_SFC_SW_DWN solar irradiance. Powers OTTV, RTTV, and energy calculations.

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ECBC 2017 Compliance — Automated

10 compliance checks: Wall U-value, Roof U-value, Window U-value, SHGC, OTTV (≤45 W/m²), RTTV (≤25 W/m²), SRI (≥78), WWR (≤40%), ENS RETV (≤15 W/m²), Seismic risk. Each shows actual value, limit, Pass/Fail.

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7-Parameter Weighted Score

Embodied Carbon (30%), Thermal (25%), Local Availability (15%), Cost Efficiency (10%), Durability (10%), Renewable/Recycled (5%), Water (5%). Score 0–100 → Grade A+ to E → GRIHA 1–5 ★.

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Professional PDF Report — In Browser

Generated via jsPDF entirely in your browser. No data uploaded anywhere. Submit to urban local bodies, banks, or PMAY/GRIHA schemes.

Platform Specificationsv2026.03

PlatformBrowser-based · No install

Districts Covered758 — All India

NASA Climate Data670 districts · 21-yr avg

Materials Database72 verified materials

Standards Implemented24 IS/ISO/ECBC/ASHRAE

Result Tabs17 analysis tabs

PDF ReportjsPDF · In-browser · 10 pages

ECBC Checks10 automated Pass/Fail

Grid EF UsedCEA v20 · 0.727 kg CO₂/kWh

Data CollectionZero · 100% local

Offline CapableYes

URL SharingAll inputs encoded

How It Works

Three steps.
17 outputs.

Location & Building Details

Type your district — live typeahead from all 758. Set area, floors, building type, budget tier, occupants, WWR per face (N/S/E/W), orientation, structural system, HVAC, and green toggles: RWH, Solar PV, Night Cooling, Skylights, Trees, Green Roof.

Inputs validated live · No submission needed

Material Selection — All 72 Options

Pick one per category from filtered lists: 22 wall types, 15 roof types, 14 floor types, 8 window types, 13 insulation types. Materials above your budget tier are hidden. Each card shows ICE v3 embodied carbon, rating A+ to E, thermal k, lifespan, cost.

Budget-aware filter · Search all 72

Instant Results Across 17 Tabs

All calculations run instantly in the browser. Results appear across 17 tabs: Scores, Carbon, Energy, ECBC, LCA, Label, Recommendations, GRIHA Benchmark, IAQ, Passive Design, Biodiversity and more. Export PDF or share via URL.

PDF in-browser · No server · No upload

District: Bengaluru Urban

NASA POWER · IS 1893 · CGWB · Loaded

Climate Zone4 — Temperate (ECBC 2017)

Seismic ZoneII — Low Risk (IS 1893)

Flood RiskLow (NDMA Atlas)

Water ScarcityHigh — RWH mandatory

Soil TypeRed laterite / rocky

Build Cost₹1,800–₹2,800/sqft (CPWD DSR 2024)

Score Breakdown

Embodied Carbon

Thermal Perf.

Local Avail.

Cost Efficiency

A+

ECBC · 10/10 Pass

★★★★★

GRIHA Proxy · 5★

Results Engine

17 analysis tabs.
One assessment.

Every angle of your building's sustainability — from embodied carbon to biodiversity — calculated and shown instantly.

Score Overview

0–100Sustainability Score

A+ → ELetter Grade

1–5 ★GRIHA Proxy Rating

₹/yrAnnual Bill Saving

Total score, letter grade (A+ to E), 7-parameter score bars with breakdown per dimension

Energy Use Intensity (kWh/m²/yr), peak cooling load (kW) + AC tonnage required

CO₂ saved vs baseline in tonnes/yr — expressed as tree-equivalents (IPCC AR5: 21.77 kg/tree/yr)

Property value premium in ₹ lakh (8% for green-rated, RICS India 2022 / JLL India)

CO₂ payback period in years to recover embodied carbon difference through operational savings

Carbon Analysis — Embodied + Operational

Component-by-component: Wall EC, Roof EC, Floor EC, Plaster EC, Foundation EC, Frame EC — all in kg CO₂/m² vs baseline

Foundation carbon varies by structural system and floors (RICS WLCA 2017): RCC Frame 130–220, Steel 140–230, Load-bearing 100–180, Timber+Bamboo 50–110 kg CO₂/m² of floor area

Biogenic carbon for bamboo, timber, hemp, jute tracked separately per ISO 21930:2017

Grid emission factor: CEA CO₂ Baseline DB v20, FY2023-24 — 0.727 kg CO₂/kWh

Energy Performance

Cooling saved from OTTV delta: Cool_saved = (OTTV_base − OTTV_user) × wall_area × cool_hrs / (COP × 1000)

COP mapping: Split AC 3.0 (baseline), VRF 4.2, Central Chiller 5.0, Natural Ventilation — no mechanical load

Monthly energy profile — 12-month bar chart from NASA POWER T_avg, sol data per district

25-year energy NPV — 8% discount rate, 5% electricity escalation (CERC 2010–2024)

ECBC 2017 Compliance — 10 Automated Checks

Wall U-value — ECBC Table 5-1: 0.30–0.44 W/m²K by zone (Zone 5: 0.30, Zones 1–4: 0.44). Roof U-value: 0.20–0.33 W/m²K (Zone 5: 0.20, Zones 1–4: 0.33)

OTTV — ECBC Section 5.3: ≤45 W/m². Formula: 0.25 × Σ[Uw×(1-WWR)×TDeq + Uwn×WWR×ΔT + SC×WWR×SF]

SHGC — Zone 1&2: ≤0.25, Zone 3: ≤0.40, Zone 4: ≤0.51. SC = SHGC/0.87

ENS RETV — Eco Niwas Samhita 2021: ≤15 W/m² for residential buildings

Seismic Risk — IS 1893:2016: flags unreinforced masonry above G+2 in Zones IV–V

25-Year Lifecycle Cost Analysis

NPV = Σ [E_bill_yr × (1+esc)^yr / (1+disc)^yr] for yr = 1 to 25, disc=8%, esc=5%

Tariffs per CERC/DISCOM 2024: Residential ₹6.5/kWh, Commercial ₹10/kWh, Hospital ₹8.5/kWh, School ₹7.0/kWh, Affordable ₹5.5/kWh

Carbon credits at ₹1,500/tCO₂ (India Carbon Market 2024) for solar-enabled buildings

Property value premium 8% for green-rated buildings — RICS India 2022 / JLL India

Energy Label A+ to E

A+ (90–100) · A (80–89) · B (70–79) · C (60–69) · D (50–59) · E (below 50)

Your grade shown on visual scale with specific steps to reach the next grade

Smart Alternatives — top 2 better materials per category with EC delta, U-value delta, cost delta

Priority-Tagged Recommendations

Generated from: district data, climate zone, materials, building type, solar/RWH status, and budget tier

Affordable tier — PMAY subsidy path (₹1.5–2.67 lakh), EWS/LIG-specific guidance

Luxury tier — Net-zero roadmap with GRIHA 5★ + LEED Platinum pathway

Each recommendation tagged High / Medium / Low priority with expected impact

GRIHA Benchmark — 5 Real Certified Buildings

CII Sohrabji Godrej Green Business Centre — 5★, Hyderabad

Indira Paryavaran Bhawan — 5★, New Delhi

IIT Delhi Academic Complex — 4★, New Delhi

Suzlon One Earth Campus — 5★, Pune

CEPT University Block 5 — 4★, Ahmedabad

Indoor Air Quality

VOC Status — material-level VOC ratings + Low-VOC toggle effect

Fire Rating — IS 1641 class (A/B/C/D) for all selected materials

Sound Rating — STC (Sound Transmission Class dB) for wall and floor materials

Thermal Comfort — ASHRAE 55 adaptive comfort model evaluation

Passive Design Strategies

Score from: Night Cooling toggle, Skylights toggle, North-biased orientation, Low West WWR

Zone-specific strategies from NBC 2016 Part 8: monsoon waterproofing, shading depth, thermal mass

Zone 1 Hot & Dry: wind catchers, courtyards; Zone 2 Humid: ventilation stacks; Zone 5 Cold: Dhajji walls

District Insights — Local Engineering Data

Seismic Zone — BIS IS 1893:2016. Structural risk warning for unreinforced masonry in Zones IV–V above G+2

Flood Risk — NDMA National Flood Risk Atlas: Low / Moderate / High / Very High

Soil Type — NBSS&LUP: Sandy / Black cotton (raft warning) / Laterite / Alluvial / Rocky

Water Scarcity — CGWB Groundwater Year Book 2022-23: Critical / High / Moderate

Smart Alternatives

Top 2 better material alternatives per category — filtered to your budget tier

Each shows: EC delta (kg CO₂/kg), U-value delta (W/m²K), cost delta (₹/m²), and specific reason for this district and zone

Radar Chart — 7 Parameters

Spider chart plotting all 7 dimensions: Embodied Carbon, Thermal, Availability, Cost, Durability, Renewable, Water

Your building vs Conventional baseline — shows strengths and weaknesses at a glance

Biodiversity Score

Trees Planted — CO₂ sequestration: 21.77 kg CO₂/tree/yr (IPCC AR5), 0–50 slider

Green Roof Coverage — 0–100% slider: biodiversity, stormwater, insulation effect

Permeable Surface — 0–80% slider: stormwater reduction + urban heat island

Compare Mode — Scenario A vs B

Enable Compare Mode to build a second material scenario (Scenario B) alongside your primary

Side-by-side: all scores, EC totals, OTTV/RTTV, energy savings, 25-yr costs, GRIHA points

Methodology — All Formulas & Sources

ISO 6946:2017 U-value: U = 1/(Rsi + t/k + Rse), Rsi=0.13 walls, 0.10 roofs

ECBC 2017 OTTV: 0.25 × Σ[Uw×(1-WWR)×TDeq + Uwn×WWR×ΔT + SC×WWR×SF]

ISO 14683:2017 thermal bridging: ΔU +0.10 concrete, +0.15 Al frames, +0.04 timber

All 24 engineering standards with exact clause references

Full Summary

Complete project summary: grade, score, GRIHA stars, zone, CO₂ saved, tree equivalent

All 5 selected materials in one properties table: U-value, EC, lifespan, carbon rating, cost

Scoring Methodology

Seven parameters.
One score.

The sustainability score (0–100) is a weighted composite grounded in ECBC 2017, ICE v3, and CPWD DSR 2024.

EC · 30%30

Embodied Carbon

CO₂ in material manufacturing. Delta between your build and ECBC zone baseline, normalised to 100. ICE Database v3 values.

TH · 25%25

Thermal Performance

U-value ECBC compliance + OTTV delta from baseline + per-face WWR scoring + orientation factor + SHGC pass/fail.

AV · 15%15

Local Availability

Mean availability score (1–5) from BMTPC regional data. Locally sourced materials reduce transport carbon.

CO · 10%10

Cost Efficiency

Material cost vs CPWD DSR 2024 baseline for your zone. Cost saving vs conventional = higher score.

DU · 10%10

Durability

Weighted average lifespan of selected materials vs 25-year benchmark. 50+ years scores 100.

RN · 5%5

Renewable / Recycled

Fraction of materials that are renewable (bamboo, hemp, timber) or contain recycled content ≥30%.

WA · 5%5

Water Efficiency

RWH toggle: score 100 if enabled, 20 if not. CGWB district water scarcity shown as advisory.

Materials Database

72 materials.
ICE Database v3.

Every material carries verified embodied carbon (ICE v3), thermal conductivity (ISO 10456), lifespan, fire rating, STC, and CPWD DSR 2024 cost data.

22Wall

Fly Ash Brick, AAC, Laterite, Hempcrete (−0.18), Rammed Earth, Dhajji, CSEB, Bamboo, Stone Rubble + 13 more

15Roof

RCC, Cool Roof (SRI 78+), Terracotta Filler, Jack Arch, Mangalore Tile, Green Roof, Bamboo + 8 more

14Floor

Kota Stone, IPS, Shahabad, Athangudi Tile, Bamboo Strip, Polished Concrete, Recycled Glass + 7 more

8Window

Single Al, Double uPVC, Triple uPVC, Wooden Frame, Bamboo Slatted Screen + 3 more

13Insulation

Aerogel, Hemp Wool, Jute Batts, Coconut Coir, Rice Husk Ash, Cellulose, EPS, XPS + 5 more

Material	Rating	EC kg CO₂/kg	k W/mK	Life yrs	~Cost ₹/m²
Hempcrete Block (300mm) Carbon-NEGATIVE — biogenic CO₂ sequestration (ISO 21930). Zones 3–5.	A+	−0.18	0.12	50	₹4,200
Laterite Stone Block (230mm) Self-cooling coastal stone — hardens with age, Kerala/Karnataka. 100-yr life.	A+	0.02	0.65	100	₹2,200
Fly Ash Brick (230mm) 60% lower carbon than clay brick — 60% recycled power plant waste. All zones.	A	0.08	0.70	50	₹3,800
Hollow Concrete Block (200mm) Air cavity reduces thermal conductivity. Cost-effective for all 5 zones.	B	0.093	0.70	50	₹3,000
Burnt Clay Brick (230mm) Most common — high carbon from coal kiln firing. NBC 2016 conventional baseline.	C	0.24	0.81	50	₹4,500
GI Corrugated Sheet (Roof) Low-cost rural roof — very high embodied carbon. Rating E.	E	2.51	50.0	20	₹650

Engineering Standards

24 verified standards.
Every calculation cited.

ECBC 2017 — BEEU-value limits, OTTV/RTTV formula, SHGC, SRI ≥78, WWR ≤40%

Eco Niwas Samhita 2021RETV formula, ≤15 W/m² residential envelope

IS 1893:2016 — BISSeismic zone classification for all 758 districts (I–V)

IS 4326:2013 — BISMax floors for unreinforced masonry in seismic zones

IS 1172:2011 — BISWater demand norms by building type (25–180 L/person/day)

NBC 2016 Part 8 — BISOccupancy hours by building type; passive design guidance

ISO 6946:2017U-value: 1/(Rsi + t/k + Rse), Rsi=0.13 walls, 0.10 roofs

ISO 14683:2017Thermal bridging ΔU: +0.10 concrete, +0.15 Al, +0.04 timber

ISO 10456:2007Moisture correction for hygroscopic materials (mud, bamboo)

ISO 13790:2008Monthly heating energy calculation method (HDD-based)

ISO 21930:2017Biogenic vs fossil carbon tracked separately (hemp, bamboo)

ASHRAE 62.1 + 55Infiltration ACH by building type; adaptive thermal comfort

ICE Database v3Embodied carbon for all 72 materials (Circular Ecology, UK)

CEA CO₂ DB v20 FY2023-24Grid emission factor: 0.727 kg CO₂/kWh (latest official)

CPWD DSR 2024Material costs, construction cost benchmarks, maintenance norms

NASA POWER API21-year monthly climate averages (2000–2020) for 670 districts

NDMA Flood Risk AtlasDistrict flood classification: Low / Moderate / High / Very High

CGWB Groundwater 2022-23Water scarcity level — Critical / High / Moderate by district

NBSS&LUP Soil SurveySoil type classification: black cotton, laterite, alluvial, rocky

RICS WLCA 2017Foundation embodied carbon by structural system type

RICS India 2022 / JLL India8% property value premium for green-rated buildings

IPCC AR5Tree CO₂ sequestration: 21.77 kg CO₂/tree/year

CERC / DISCOM 2024Electricity tariffs by building type (₹5.5–10/kWh)

IS 3646 + BEE LPD NormsLighting Power Density benchmarks for energy calculation

Assess.
Comply.
Build Green.

A full assessment platform,
not a calculator.

Three steps.
17 outputs.

17 analysis tabs.
One assessment.

Seven parameters.
One score.

5 zones. 758 districts.

72 materials.
ICE Database v3.

24 verified standards.
Every calculation cited.

Your district.
Your materials.
Your score.

Assess.Comply.Build Green.

A full assessment platform,not a calculator.

Three steps.17 outputs.

17 analysis tabs.One assessment.

Seven parameters.One score.

5 zones. 758 districts.

72 materials.ICE Database v3.

24 verified standards.Every calculation cited.

Your district.Your materials.Your score.

Assess.
Comply.
Build Green.

A full assessment platform,
not a calculator.

Three steps.
17 outputs.

17 analysis tabs.
One assessment.

Seven parameters.
One score.

72 materials.
ICE Database v3.

24 verified standards.
Every calculation cited.

Your district.
Your materials.
Your score.