Karsen Residence Proposal · Detailed Estimate · JMG Design & Build
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Karsen Residence
Detailed Estimate Proposal

Proposed 2‑Storey Annex · Carport · Patio · Gate
Gingoog City, Philippines

Prepared For
Mr. David & Mrs. Margie Karsen
Prepared By
Engr. Jasper M. Gementiza
Managing Owner
Date
August 31, 2026
01 Table of Contents
Introduction to the Karsen Residence Proposal 02 Scope of Work 03 Karsen Residence Proposal Cost Summary 04 Detailed Bill of Quantities 05 Project Milestones 10 Gantt Chart & Payment Schedule 11 Team Behind the Karsen Residence Proposal 12 Next Steps & Terms 13 Resources for Your Karsen Residence Proposal 14
02 Introduction to the Karsen Residence Proposal

Your Complete Karsen Residence Proposal – Transparent & Detailed

Dear David and Margie,
Thank you for the trust you have placed in JMG Design & Build. We are pleased to present this comprehensive Karsen Residence Proposal for the proposed 2‑storey annex, carport, patio, and gate at your residence in Gingoog City.

This Karsen Residence Proposal consolidates all discussions, design decisions, and cost assessments into a single, transparent document. Every item—from structural footings to electrical provisions—has been carefully quantified and priced. Our goal is to provide you with a clear, complete picture of the investment required, so you can move forward with confidence.

The estimate is based on the finalized working drawings (August 22, 2026) and incorporates all your feedback. We have also included a Bill of Quantities (BOQ) in a standard industry format, along with a timeline of key milestones. As a trusted partner, we take pride in delivering projects with precision and transparency. Should you have any questions, we are always available to discuss.

We look forward to building your home together.

Karsen Residence Proposal – detailed estimate and design for the annex in Gingoog City
Karsen Residence Proposal — detailed estimate and design overview
03 Scope of Work

Scope Defined in the Karsen Residence Proposal

Phase 1 — Annex, Patio & Carport

  • — New 2‑storey annex apartment (88 m² total floor area)
  • — Covered reinforced concrete patio
  • — Covered carport
  • — Front gate and fence
  • — Solar‑ready flat roof with anchor points
  • — EV charger provision (60‑amp circuit)
  • — Complete plumbing, electrical, and data infrastructure (Cat8, WiFi 6)

Phase 2 — Main House (Planned Next)

  • — Kitchen and upstairs bathroom remodel
  • — Interior and exterior refresh (stairs preserved)

This Karsen Residence Proposal ensures every phase is executed with meticulous planning and quality craftsmanship.

04 Karsen Residence Proposal Cost Summary

Investment Overview from the Karsen Residence Proposal

General Requirements₱119,714.07
Structural Works₱1,567,880.19
Masonry Works₱241,733.14
Doors, Windows & Gates₱321,173.86
Floor Finishes₱142,717.52
Wall Finishes₱250,489.72
Ceiling Finishes₱130,637.28
Roofing Works₱117,851.94
Plumbing & Sanitary₱205,882.24
Electrical₱367,375.44
Mechanical₱198,729.60
Total Construction Cost (VAT exclusive) ₱3,664,185.00

≈ ₱39,380.17 / m²  ·  All costs include materials, labor, equipment, consumables, supervision, overhead, and profit.

05 Detailed Bill of Quantities

Itemized breakdown by trade section, following the standard BOQ format — prepared as part of the Karsen Residence Proposal.

ItemDescriptionQtyUnitUnit RateTotal
1.0 General Requirements
1.01Mobilization / Site Preparation1.00Lot50,000.0050,000.00
1.02Demolition (Sari-Sari concrete floor)1.00Lot30,000.0030,000.00
1.03Excavation56.34m³240.2413,534.99
1.04Backfilling & Compaction44.70m³250.0911,179.08
1.05Permits & Regulatory Compliances1.00Lot15,000.0015,000.00
Subtotal 1.0119,714.07
2.0 Structural Works
2.01Footings (F1)3.00Units50,733.96152,201.88
2.02Footings (F2C)3.00Units51,868.32155,604.96
2.03Footings (F3)4.00Units38,985.95155,943.80
2.04Footings (F4)4.00Units38,985.95155,943.80
2.05Footings (F5)1.00Unit7,737.867,737.86
2.06Beams (TB1)67.30m4,293.53288,954.46
2.07Beams (TB2)15.60m3,697.8557,686.44
2.08Beams (B2)67.30m1,889.00127,130.05
2.09Beams (B3)67.30m4,272.55287,552.39
2.10Beams (RB)67.30m1,743.32117,325.64
2.11Columns (C1)6.00Units25,813.45154,880.73
2.12Columns (C2)1.00Unit91,750.9091,750.90
2.13Columns (C3)1.00Unit13,322.2013,322.20
2.14Slab (S1)1.43m³12,851.3318,377.40
2.15Slab (S2)6.54m³22,575.71147,645.12
2.16Slab (S3 – Steel Deck)1.875m³23,655.7344,354.50
2.17Stairway1.00Lot15,605.7615,605.76
Subtotal 2.01,567,880.19
3.0 Masonry Works
3.01Annex First Floor (6″ CHB)54.23sqm1,369.9074,293.70
3.02Annex Second Floor (6″ CHB)29.50sqm1,416.8641,797.43
3.03Front Gate (6″ CHB)9.36sqm1,420.0813,291.92
3.04Fire Wall (6″ CHB)82.50sqm1,361.82112,350.09
Subtotal 3.0241,733.14
4.0 Doors, Windows, Gates & Railings
4.01D1 Single Leaf Swing Door1.00Unit13,208.0013,208.00
4.02D2 Single Leaf Swing Door (2 units)2.00Units17,658.0835,316.16
4.03W1 Awning Window1.00Unit13,004.8013,004.80
4.04W2 French Window (5 units)5.00Units19,908.0099,540.00
4.05W3 Awning Window1.00Unit13,004.8013,004.80
4.06W4 Awning Window1.00Unit15,036.8015,036.80
4.07Stair Railings7.00m2,743.2019,202.40
4.08Fabricated Metal Gate (3.0m x 1.8m)1.00Unit112,860.90112,860.90
Subtotal 4.0321,173.86
5.0 Floor Finishes
5.01FT-01 (Living Area, 18.7 sqm)18.70sqm1,790.0133,473.14
5.02FT-02 (T&B, 3.8 sqm)3.80sqm2,139.758,131.05
5.03FT-03 (Carport/Patio, 45.3 sqm)45.30sqm2,010.7991,048.84
5.04Additional Floor Area (19.2 sqm)19.20sqm524.1910,064.49
Subtotal 5.0142,717.52
6.0 Wall Finishes
6.01Exterior Annex Wall (44.4 sqm)44.40sqm542.7824,099.52
6.02Exterior Annex/Fire Wall (46.6 sqm)46.60sqm517.1624,099.52
6.03Exterior Fire Wall (82.5 sqm)82.50sqm527.5843,525.44
6.04Brick Tiles (12.3 sqm)12.30sqm7,093.7487,253.06
6.05Interior Wall (112.86 sqm)112.86sqm260.6129,413.20
6.06T&B Wall Tiles (16.5 sqm)16.50sqm1,460.4524,097.49
6.07Gate (46.6 sqm)46.60sqm200.159,326.88
6.08Kitchen Splashback (4.5 sqm)4.50sqm1,927.698,674.61
Subtotal 6.0250,489.72
7.0 Ceiling Finishes
7.01Ceiling Works1.00Lot130,637.28130,637.28
Subtotal 7.0130,637.28
8.0 Roofing Works
8.01Roofing Works1.00Lot117,851.94117,851.94
Subtotal 8.0117,851.94
9.0 Plumbing & Sanitary
9.01Plumbing & Sanitary Works1.00Lot205,882.24205,882.24
Subtotal 9.0205,882.24
10.0 Electrical
10.01Electrical Works (including EV provision, data)1.00Lot367,375.44367,375.44
Subtotal 10.0367,375.44
11.0 Mechanical
11.01Mechanical Works (ACU, fans, ventilation)1.00Lot198,729.60198,729.60
Subtotal 11.0198,729.60
GRAND TOTAL (1.0 – 11.0)₱3,664,185.00

Bill of Quantities submitted August 31, 2026

06 Project Milestones

Timeline from the Karsen Residence Proposal

Site Visit
Mar 25, 2026Complete
Milestone 1 — Design Mobilization
Mar 30, 2026Complete
Milestone 2 — Design Development
Apr 26, 2026Complete
Finalized Working Drawings DeliveredIncorporating client feedback
Aug 4, 2026Partially Submitted
You are here — Revising the Plan on Your FeedbackWorking through Aug 8 questions with architect & engineer
In progress—
Bill of Quantities & Estimate with Structural Drawings
Aug 31, 2026Submitted
Building Permit Filing
Sep 7, 2026Upcoming
Construction Mobilization
Oct 1, 2026Upcoming
07 Gantt Chart & Payment Schedule

Construction Timeline & Payment Milestones

The following Gantt chart outlines the projected construction schedule for the Karsen Residence Proposal, starting October 1, 2026, assuming all permit barriers are cleared. The payment schedule aligns with key milestone completions.

Task / Phase Timeline (Oct 2026 – Mar 2027) Duration
Mobilization & Site PrepClearing, setup, permits
Oct
Oct 1–15
Excavation & FootingsFoundations, columns
Oct–Nov
Oct 16–Nov 15
Structural FrameBeams, columns, slabs
Nov–Dec
Nov 16–Dec 31
Masonry & RoofingCHB walls, roof deck
Jan–Feb
Jan 1–Feb 15
Finishes & MEPFlooring, painting, plumbing, electrical, mechanical
Feb–Mar
Feb 16–Mar 31
Mobilization Excavation / Footings Structural Frame Masonry / Roofing Finishes & MEP Projected Completion: March 31, 2027

Payment Schedule

MilestoneDescriptionDue DateAmount (₱)% of Total
1Mobilization DepositOct 1, 20261,099,255.5030%
2Foundation & Structural FrameNov 15, 2026732,837.0020%
3Masonry & RoofingJan 15, 2027732,837.0020%
4Finishes, MEP & ProgressFeb 28, 2027549,627.7515%
5Final Completion & HandoverMar 31, 2027549,627.7515%
Total₱3,664,185.00

Note: Payment milestones are tied to verified progress. All amounts are VAT exclusive. Schedule assumes timely permit issuance and no major weather or material delays.

08 Team Behind the Karsen Residence Proposal

Meet the Experts Who Prepared This Karsen Residence Proposal

Single‑point accountability runs through Engr. Jasper M. Gementiza — your one call for anything on this project. Working alongside him are three experienced professionals who know your project by name.

Engr. Jasper M. Gementiza, lead for the Karsen Residence Proposal
Engr. Jasper M. Gementiza
Managing Owner
PRC 0098257
Ar. Robinson Chua, architect on the Karsen Residence Proposal
Ar. Robinson Chua
Architect
PRC 29037
Engr. Kirby Aldrich Luy, project management for the Karsen Residence Proposal
Engr. Kirby Aldrich Luy
Site & Project Management
PRC 0194468
Engr. Ana Marie Martensen Bueno, estimates and finance for the Karsen Residence Proposal
Engr. Ana Marie Martensen Bueno
Estimates & Finance
PRC 232210
09 Next Steps & Terms

Next Steps

  1. Review the Karsen Residence Proposal and BOQ in detail.
  2. Provide the required documents: TCT, Tax Clearance, and signed Neighbor’s Consent.
  3. Confirm approval of the estimate and schedule.
  4. We will then proceed with the Building Permit filing.

Terms & Conditions

  • This estimate is valid for 30 days from date of issue.
  • All prices are VAT exclusive.
  • Payment terms: 30% mobilization, progress billings monthly.
  • Any variations must be agreed in writing.
Accepted and Agreed
 
___________________________
Mr. David Karsen / Mrs. Margie Karsen
Date: __________________
Prepared by
 
Engr. Jasper M. Gementiza
Managing Owner, JMG Design & Build
Date: August 31, 2026
10 Resources for Your Karsen Residence Proposal

Trusted References and Related Resources

As part of the Karsen Residence Proposal, we are proud to be affiliated with the following professional organizations and resources:

Professional Affiliations

Internal links: Residential Projects · Construction Projects · About Us

External dofollow links: PRC Verification · ASEP Philippines · DPWH Philippines

Focus Keyword: karsen residence proposal — strategically placed throughout this document for optimal search visibility.

JMG Design & Build · Karsen Residence Proposal · August 31, 2026 · Properly Planned. Properly Built.
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