Case StudyCommercial Office · Houston, TX · Year-over-Year Verified

Ten Story Office Building — Houston, TX
39% Bill Reduction · 37% Less Water · $0.10/SF/yr Savings

180,000 SF, 10-story multi-tenant commercial office. 4" main meter + 2" irrigation meter. Year-over-year comparison: Oct–Dec 2018 vs Oct–Dec 2017.

39%Bill Reduction39% average, Oct–Dec YOY

37%Daily Usage Reduction37% average, gallons/day

<12 MonthsPayback PeriodLess than 12 months

$0.10/SF/yrReduction in W+S CostPer square foot per year

Monthly Water Bill — 2017 vs 2018 (4-inch Main Meter)

Oct–Dec 2017 (before) vs Oct–Dec 2018 (after) · Main meter only

Average monthly bill dropped from $3,857 to $2,363 — a 39% reduction. Oct savings alone: $2,014/month.

Daily Water Usage — 2017 vs 2018 (4-inch Main Meter)

Oct–Dec 2017 (before) vs Oct–Dec 2018 (after) · Gallons per day

Average daily usage dropped from 12,262 to 7,784 gal/day — a 37% reduction.

39%

Avg Bill Reduction

$3,857 → $2,363/mo

37%

Daily Usage Reduction

12,262 → 7,784 gal/day

$0.10/SF/yr

Water + Sewer Reduction

Per square foot, per year

Key Findings

39% bill reduction on a 4-inch commercial meter

The three-month year-over-year comparison (Oct–Dec 2018 vs 2017) showed average monthly bills drop from $3,857 to $2,363 — a 39% reduction in water and sewer cost across all three months.

Office buildings provide exceptionally clean measurement

The report notes that office building tenants have more consistent water consumption patterns than irrigation meters. This makes the 37%/39% result highly reliable — occupancy-driven variation is minimal in a commercial multi-tenant setting.

$0.10/SF/year — a metric CFOs understand

For a 180,000 SF building, $0.10/SF/yr reduction in water and sewer cost represents $18,000/year in recovered operating expense — making this a compelling line item for NNN lease and asset management discussions.

Irrigation meter also achieved 40% bill reduction

A separate 2" valve on the irrigation meter achieved a 40% bill reduction and 45% daily usage reduction — also with a payback under 12 months.

Monthly Detail — 4″ Main Meter

Month	2017 Cost	2018 Cost	2017 Gal/Day	2018 Gal/Day
October	$4,583	$2,569	15,536	10,174
November	$3,805	$2,526	11,250	6,970
December	$3,182	$1,992	10,000	6,207
Average	$3,857	$2,363	12,262	7,784
YOY Reduction		−39%		−37%

Irrigation Meter — 2″ Valve (Separate)

A separate 2" Smart Valve on the irrigation meter achieved a 40% bill reduction and 45% daily usage reduction over a two-month sample (Jun–Jul 2017 vs Jun–Jul 2018), also with a payback under 12 months. As the report notes, irrigation results can be influenced by scheduling changes — the main meter's 37%/39% is the primary verified figure.

All Case Studies →

Full M&V portfolio — Amazon, Four Seasons, Grand Central and more

Grand Central Tampa — 25% →

Commercial 14-story · Tampa, FL · $50,000/yr savings

All Industries →

Multifamily, hotels, car washes, hospitals, data centers and more