There is no single construction price per square meter that applies to every Filipino homeowner. The final amount depends on the house’s floor area, structural design, material specifications, professional services, permits, utility connections, site conditions, and other expenses that may not be included in a contractor’s basic quotation.

The latest Philippine Statistics Authority (PSA) data provides an important benchmark. In July 2026, the average cost of residential construction based on approved building permits was ₱13,058.66 per square meter nationwide.

However, that figure should not be treated as a guaranteed price for building a house. PSA construction statistics describe approved construction activity and combine projects with different sizes, specifications, and characteristics.

For someone planning to build a home, the more useful question is:

How much money should I realistically prepare from planning and construction to a finished, move-in-ready house?

This guide breaks down the major costs, explains how the 2026 estimates were developed, compares different house sizes, examines location differences, and provides a practical framework for creating a more realistic construction budget.

2026 House Construction Cost at a Glance

For preliminary planning, it is more useful to work with several construction scenarios than to assume that every house has the same cost per square meter.

The following are illustrative planning ranges, not official government rates:

The PSA’s July 2026 national residential benchmark of ₱13,058.66/sqm falls within the lower portion of this planning framework.

The actual price of a particular house can be lower or considerably higher.

For example, a simple 100-square-meter house with economical finishes can have a very different budget from a 100-square-meter home with premium windows, custom cabinetry, multiple bathrooms, high-end tiles, and a complicated roof design.

Estimated Construction Cost by Floor Area

The easiest starting point is to multiply the planned floor area by an assumed construction rate.

The basic formula is:

Estimated construction cost = floor area × assumed construction rate

Here is a practical planning table:

These calculations are intentionally presented as scenarios rather than promises.

For example, if your house is 100 sqm and your planning rate is ₱18,000 per sqm:

100 sqm × ₱18,000 = ₱1.8 million

That ₱1.8 million is a preliminary construction estimate. It is not necessarily the amount you will need to complete the entire property and move in.

What the PSA Construction Cost Figure Actually Means

The PSA’s construction statistics are valuable because they provide an official statistical reference for construction activity in the Philippines.

In July 2026, the PSA reported:

• Residential construction average: ₱13,058.66/sqm
• Non-residential construction average: ₱11,156.42/sqm
• Additions average: ₱9,779.32/sqm

Residential construction had the highest average among those categories.

The PSA figures are based on approved building permits and reported construction value and floor area. They therefore provide a useful statistical benchmark, but they are not equivalent to a contractor’s quotation for an individual homeowner.

This distinction matters.

If the PSA reports an average of ₱13,058.66/sqm, that does not mean a contractor must build your 100-square-meter house for exactly ₱1,305,866.

Your house may have a different design, finish level, location, structural requirement, or scope of work.

Why the National Average Changes

Construction costs can move from one period to another.

The PSA reported a national residential construction average of ₱12,379.97/sqm in June 2026, followed by ₱13,058.66/sqm in July 2026.

This is one reason homeowners should avoid using an old online article as a permanent construction price list.

Material costs, labor conditions, project mix, and other factors can change.

A current official statistic is useful as a benchmark, but your final budget should be based on current quotations for your actual plans.

How These 2026 Estimates Were Calculated

The estimates in this guide use a transparent methodology.

First, official PSA construction statistics are used as a benchmark for understanding the current Philippine construction environment.

Second, several hypothetical construction rates are applied to different floor areas.

For example:

80 sqm × ₱15,000/sqm = ₱1.2 million

100 sqm × ₱18,000/sqm = ₱1.8 million

150 sqm × ₱20,000/sqm = ₱3 million

Third, expenses outside the basic construction calculation are considered separately.

This approach prevents one of the most common budgeting mistakes: assuming that floor area multiplied by a construction rate represents the entire financial requirement.

The numbers in this article are original planning calculations, not quotations from individual contractors.

Basic, Standard and Higher-End Construction Explained

A construction rate becomes more meaningful when you know what kind of house it represents.

A basic or economical house generally uses straightforward architecture and practical materials. The layout may be relatively simple, with standard doors, windows, flooring, fixtures, and finishes.

A standard or mid-range house may include better finishing materials, more electrical provisions, upgraded windows and doors, improved kitchen and bathroom finishes, and more extensive interior work.

A higher-end house may include premium tiles, custom cabinetry, large glass panels, upgraded sanitary fixtures, architectural details, specialty lighting, more expensive kitchen systems, or more complex structural and roof designs.

There is no universal definition of “standard” or “premium.”

That is why a homeowner should always ask what materials and work are included in a quoted price per square meter.

How Much Does a 50-Square-Meter House Cost?

A 50-square-meter home is one of the more practical options for a homeowner working with a limited budget.

Using the planning scenarios:

• ₱12,000/sqm: ₱600,000
• ₱15,000/sqm: ₱750,000
• ₱18,000/sqm: ₱900,000
• ₱20,000/sqm: ₱1 million

A basic 50-square-meter house could therefore potentially fall near the lower end of the range, while a better-finished home could approach or exceed ₱1 million for construction alone.

However, the homeowner may still need money for professional services, permits, utilities, site work, furniture, appliances, and contingency.

How Much Does an 80-Square-Meter House Cost?

For an 80-square-meter house:

• ₱12,000/sqm: ₱960,000
• ₱15,000/sqm: ₱1.2 million
• ₱18,000/sqm: ₱1.44 million
• ₱20,000/sqm: ₱1.6 million

An 80-square-meter home can provide considerably more living space than a 50-square-meter house, but the budget also rises as the floor area increases.

The number of bedrooms and bathrooms can also have a major effect on the final cost.

How Much Does a 100-Square-Meter House Cost?

For a 100-square-meter house:

• ₱12,000/sqm: ₱1.2 million
• ₱15,000/sqm: ₱1.5 million
• ₱18,000/sqm: ₱1.8 million
• ₱20,000/sqm: ₱2 million

A 100-square-meter home is a useful benchmark for family-house planning.

However, the difference between ₱1.2 million and ₱2 million is substantial, and the reason is not simply floor area.

The specification matters.

A simple one-story house with standard finishes can be very different from a two-story or architecturally complex house occupying the same total floor area.

How Much Does a 120-Square-Meter House Cost?

For 120 square meters:

• ₱12,000/sqm: ₱1.44 million
• ₱15,000/sqm: ₱1.8 million
• ₱18,000/sqm: ₱2.16 million
• ₱20,000/sqm: ₱2.4 million

At this size, additional rooms, bathrooms, cabinetry, electrical circuits, windows, doors, and finishing materials can significantly affect the final cost.

How Much Does a 150-Square-Meter House Cost?

For 150 square meters:

• ₱12,000/sqm: ₱1.8 million
• ₱15,000/sqm: ₱2.25 million
• ₱18,000/sqm: ₱2.7 million
• ₱20,000/sqm: ₱3 million

A 150-square-meter home can therefore require a construction budget of several million pesos, especially when the design uses higher-end materials.

Construction Cost Is Not the Same as Total Project Cost

This is perhaps the most important budgeting distinction in the entire article.

A homeowner might receive a contractor quotation of:

₱2 million

That does not necessarily mean the entire house project costs ₱2 million.

The construction contract may not include:

• Architectural fees
• Engineering fees
• Building permits
• Surveying
• Soil investigation
• Site preparation
• Septic system
• Drainage
• Utility connections
• Fence and gate
• Driveway
• Landscaping
• Appliances
• Furniture
• Curtains
• Air conditioners

The project should therefore be divided into three financial categories.

Construction budget

Money required for the agreed building scope.

Total project budget

Construction plus professional, regulatory, site, utility, and external expenses.

Move-in budget

Furniture, appliances, curtains, air conditioners, electronics, and other items required to make the house functional.

This three-level approach gives homeowners a much clearer picture of affordability.

What Goes Into the Construction Cost?

The main construction budget can include many different work categories.

Depending on the contract, these can include:

• Site work
• Foundation
• Reinforced concrete
• Structural steel
• Masonry
• Roofing
• Doors
• Windows
• Electrical
• Plumbing
• Flooring
• Ceiling
• Painting
• Waterproofing
• Bathroom fixtures
• Kitchen work
• Cabinets
• Labor

But inclusion varies by contractor.

Two builders can quote the same ₱18,000/sqm while providing significantly different specifications.

That is why the price alone should never be the only basis for comparison.

Foundation and Structural Work

Structural work should be based on the actual building design and site requirements.

The foundation requirements of a single-story house can differ from those of a two-story house.

Soil conditions, building loads, structural system, site characteristics, and other engineering considerations can affect the design.

Homeowners should not reduce structural materials or modify structural components simply to lower the construction budget.

The National Building Code of the Philippines establishes minimum standards relating to building location, design, materials, construction, use, occupancy, and maintenance, with the stated policy of safeguarding life, health, property, and public welfare.

Roofing Can Change the Budget

Roof design can have a surprising impact on construction cost.

A simple roof is generally less complicated than one with multiple slopes, valleys, large overhangs, skylights, decorative features, or other architectural details.

Roofing material also matters.

The final budget can be affected by:

• Roofing sheets
• Structural framing
• Insulation
• Gutters
• Flashing
• Waterproofing
• Ceiling system

Homeowners should therefore finalize the roof design before comparing construction quotations.

Windows and Doors

Windows and doors can vary widely in price.

A standard aluminum window is different from a large sliding glass door or a premium window system.

The same applies to doors.

Custom sizes and specialty materials can significantly increase the budget.

A detailed quotation should identify the assumed specifications rather than simply stating “windows included.”

Electrical and Plumbing

Electrical and plumbing systems are frequently underestimated during early budgeting.

Electrical work can include:

• Wiring
• Circuit breakers
• Distribution boards
• Switches
• Outlets
• Lighting points
• Air-conditioning provisions
• Water-heater provisions
• Internet/communication conduits

Plumbing may include:

• Water supply
• Drainage
• Sanitary lines
• Floor drains
• Toilets
• Sinks
• Showers
• Faucets
• Pumps
• Water tanks

Adding another bathroom later can be much more expensive than including it in the original plans.

Kitchen and Built-In Cabinets

The kitchen can become a major part of the finishing budget.

Costs can include:

• Base cabinets
• Wall cabinets
• Countertops
• Sink
• Faucet
• Backsplash
• Hardware
• Lighting
• Range hood
• Built-in appliances

The same applies to wardrobes and other built-in storage.

A contractor’s basic construction quotation may not include all of these items.

Professional Fees

Professional services should be identified separately in the budget.

Depending on the project, homeowners may need architectural and engineering services and other technical professionals.

The Professional Regulation Commission describes the practice of architecture as including planning, architectural and structural design, specifications, supervision, and general administration related to buildings.

Philippine law also regulates the practice of architecture and the collection of professional fees for architectural services.

The exact services and fees applicable to a house depend on the project and professional agreement.

Rather than inserting a generic nationwide “architect fee” into the budget, homeowners should obtain a written scope and fee proposal from the appropriate licensed professional.

Permits and Regulatory Requirements

A homeowner should also budget for applicable permits and regulatory requirements.

The National Building Code applies to the design, location, siting, construction, alteration, repair, conversion, use, occupancy, maintenance, moving, demolition, and addition of public and private buildings and structures within its scope.

Permit requirements and fees can vary by local government and project.

That means a homeowner in Davao City should not automatically use a permit estimate found for another municipality.

The safest approach is to confirm the current requirements with the appropriate local government office and the professionals handling the project.

Site Preparation Can Significantly Change the Budget

The lot itself can create unexpected expenses.

Potential costs include:

• Clearing
• Excavation
• Filling
• Soil improvement
• Retaining walls
• Demolition
• Drainage
• Temporary fencing
• Construction access

A flat lot with good road access can be relatively straightforward.

A sloping, rocky, low-lying, or difficult-to-access property can require additional work.

This is another reason why a price-per-square-meter estimate cannot fully determine the final project cost.

Septic, Drainage and Water Management

Depending on the location and available infrastructure, homeowners may need to budget for:

• Septic tank
• Sewer connection
• Drainage
• Stormwater management
• Water tank
• Water pump

These systems should be considered during design rather than added after the main house is already under construction.

Utility Connections

Utilities can also create additional expenses.

Possible costs include:

• Electricity connection
• Electrical service equipment
• Water connection
• Water pump
• Water storage
• Internet installation

The exact requirements depend on the property’s location and the relevant service providers.

Construction Costs Differ by Location

A national average cannot represent every city and municipality.

Labor, transportation, material availability, contractor competition, site accessibility, and project characteristics all influence local construction costs.

Davao Region provides a particularly useful example.

According to the Philippine Statistics Authority (PSA) Davao Regional Office, residential construction based on approved building permits averaged ₱14,381 per square meter in the Davao Region during the first quarter of 2026. Davao City recorded the region’s highest reported residential construction average at ₱16,520 per square meter. Other reported averages were ₱10,812 in Davao Oriental, ₱9,838 in Davao del Norte, ₱7,458 in Davao de Oro, ₱5,388 in Davao del Sur, and ₱5,177 in Davao Occidental.

These figures show that reported residential construction costs can vary substantially even within the same region. However, they are statistical averages based on approved building permits, not fixed construction rates for individual houses. Actual project costs can differ depending on floor area, design, materials, labor, site conditions, and the scope of work included in the contractor’s quotation.

Why Provincial Construction Is Not Always Cheaper

It is tempting to assume that building in a provincial municipality is automatically cheaper than building in a major city.

That is not necessarily true.

A remote construction site can have higher transportation costs because materials, equipment, and workers may need to travel farther.

Local labor availability can also affect the price.

The best comparison is therefore not:

City vs. province

but:

Actual project quotation vs. actual project quotation.

A Practical 2026 Budget for a ₱1 Million Project

A ₱1-million total project budget requires careful control of floor area and specifications.

An illustrative model might look like:

This is not a contractor quotation.

It simply demonstrates how quickly a limited budget can be divided among several categories.

A homeowner with only ₱1 million available should determine the actual floor area and specifications before deciding whether the budget is realistic.

A Practical 2026 Budget for a ₱2 Million Project

An illustrative ₱2-million project could be divided as follows:

The actual distribution could be very different depending on the property.

A Practical 2026 Budget for a ₱3 Million Project

For a ₱3-million project:

A larger budget can provide more flexibility, but premium specifications can consume the additional money quickly.

A Practical 2026 Budget for a ₱5 Million Project

An illustrative ₱5-million framework:

A five-million-peso project could support a considerably larger or more highly finished home, but there is no guarantee that it will cover luxury features.

Swimming pools, large glass systems, extensive landscaping, premium appliances, custom cabinetry, and complex architecture can push the total considerably higher.

How Much Should You Reserve for Contingency?

A practical planning allowance is around 10% to 15% of the construction budget, although the appropriate amount depends on project complexity and uncertainty.

For a ₱2-million construction budget:

10% contingency = ₱200,000

15% contingency = ₱300,000

For a ₱3-million construction budget:

10% contingency = ₱300,000

15% contingency = ₱450,000

The contingency is not an invitation to spend more.

It is money reserved for legitimate unexpected costs.

What Can Cause the Budget to Increase?

Several issues commonly increase construction costs.

Design changes

Moving rooms, bathrooms, windows, or walls after construction begins can require additional work.

Material upgrades

Changing from economical to premium tiles, windows, doors, fixtures, or countertops can increase the budget.

Additional electrical requirements

Adding more outlets, lighting, air-conditioning points, or high-load appliances may require additional work.

Additional plumbing

Adding bathrooms or moving plumbing fixtures after construction begins can be expensive.

Site problems

Unexpected excavation, drainage, soil, or access problems can also increase the budget.

How to Save Money Without Sacrificing Structural Safety

The safest savings usually come from better planning.

Consider:

• Keeping the floor plan relatively simple
• Reducing unnecessary architectural complexity
• Standardizing window and door sizes
• Comparing suppliers
• Selecting finishes carefully
• Purchasing according to the BOQ
• Avoiding major design changes during construction
• Comparing contractors based on scope
• Delaying non-essential decorative improvements

Structural components should not be reduced simply to meet a budget target.

Any structural change should be reviewed by the appropriate qualified professional.

Why a Detailed Bill of Quantities Matters

A Bill of Quantities (BOQ) makes contractor quotations much easier to understand.

Instead of receiving:

House construction — ₱2,000,000

you should ideally see a detailed breakdown covering major work categories such as:

• Excavation
• Concrete
• Reinforcing steel
• Masonry
• Roofing
• Electrical
• Plumbing
• Flooring
• Ceiling
• Painting
• Doors
• Windows

The BOQ also makes it easier to compare contractors.

If one contractor quotes ₱1.8 million and another quotes ₱2.1 million, the difference may be explained by materials or items included in their respective scopes.

How to Compare Contractor Quotations

Do not automatically select the lowest quotation.

Instead, compare:

Scope

What work is included?

Materials

What brands, grades, sizes, and specifications are assumed?

Labor

Is labor included?

Professional services

Are design and engineering services included or separate?

External work

Are drainage, driveway, fencing, or landscaping included?

Finishing

Are cabinets, bathroom fixtures, lighting fixtures, and appliances included?

Payment terms

How much is required upfront and when are subsequent payments due?

The goal is to compare equivalent scopes, not just headline prices.

Questions to Ask Before Signing a Construction Contract

Before committing to a contractor, ask:

1. What exactly is included in the quoted price?
2. Are all materials included?
3. Is labor included?
4. Is the foundation included?
5. Are electrical fixtures included?
6. Are bathroom fixtures included?
7. Is the kitchen included?
8. Are cabinets included?
9. Is waterproofing included?
10. Is site preparation included?
11. Are permits included?
12. Are professional fees included?
13. How are design changes priced?
14. What happens if material prices change?
15. What is the construction schedule?
16. What warranty is provided?
17. How are additional costs approved?

The answers should be documented rather than relying only on verbal promises.

A Simple House Construction Budget Calculator

Homeowners can use this formula for an initial estimate:

Step 1: Estimate construction

Floor area × assumed construction rate

Step 2: Add professional services

Architectural + engineering + surveying and other applicable services

Step 3: Add permits and regulatory expenses

Applicable permits and fees

Step 4: Add site costs

Excavation + filling + drainage + septic + utility connections

Step 5: Add external improvements

Fence + gate + driveway + landscaping, where applicable

Step 6: Add contingency

A planning reserve of around 10%–15% of construction cost

Step 7: Add move-in expenses

Appliances + furniture + curtains + air conditioners + other household requirements

This calculation provides a much more realistic picture than multiplying floor area by one construction rate.

Example: 100-Square-Meter Standard House

Suppose you plan to build a 100-square-meter house and use ₱18,000/sqm as the preliminary construction assumption.

100 sqm × ₱18,000 = ₱1.8 million

Now add:

• Professional/permit allowance: ₱150,000
• Site/utilities: ₱150,000
• External works: ₱100,000
• Contingency: ₱250,000

The preliminary project budget becomes:

₱2.45 million

Again, this is an illustrative model, not a quotation.

Its purpose is to demonstrate how a ₱1.8-million construction estimate can become a significantly larger overall project budget.

Construction Budget vs. Move-In Budget

A homeowner should create a second budget for items that may not be part of construction.

For example:

The amount required varies widely.

A family can move into a basic house with relatively little furniture, while another household may spend hundreds of thousands of pesos furnishing the same property.

Should You Build Everything at Once?

Not necessarily.

If funds are limited, some non-essential improvements can potentially be phased.

The first phase might prioritize:

• Structural work
• Bedrooms
• Bathrooms
• Kitchen
• Essential electrical systems
• Essential plumbing
• Basic finishes

Later phases could include:

• Landscaping
• Additional cabinets
• Decorative improvements
• Outdoor kitchens
• Additional rooms
• Premium finishes

However, future expansion should be considered during the initial design.

A future second floor or extension should not be improvised after construction without appropriate professional assessment.

How Long Does Building a House Take?

There is no single construction timeline for every house.

The project duration depends on:

• Floor area
• Number of floors
• Design complexity
• Weather
• Labor availability
• Material delivery
• Site conditions
• Contractor organization
• Permit status

It is useful to divide the project into stages:

The actual duration of each stage varies, so homeowners should avoid relying on a generic promise such as “the house will be finished in exactly X months” without a project-specific schedule.

How Buzz PH Researched This Guide

The cost estimates in this article were developed using a combination of official Philippine construction statistics, government regulatory information, regional data, and original calculations.

The PSA’s July 2026 national construction statistics were used as the primary statistical benchmark.

The PSA Davao Regional Office’s Q1 2026 data was used to demonstrate how residential construction costs can differ geographically.

Government information on the National Building Code was used when discussing building standards and regulatory considerations.

PRC information was used for the discussion of architectural professional practice.

The floor-area calculations, budget scenarios, contingency examples, and cost-allocation models in this article were independently calculated for this guide.

This methodology is important because it separates official statistics from editorial planning estimates.

We do not present our hypothetical calculations as contractor quotations or government-prescribed construction rates.

2026 Pre-Construction Checklist for Filipino Homeowners

Before construction begins, review the following:

Property

• Confirm ownership and property documents
• Confirm lot boundaries
• Check site accessibility
• Review drainage and flood considerations
• Consider soil/site conditions

Design

• Architectural plans
• Structural plans
• Electrical plans
• Plumbing/sanitary plans
• Final floor area
• Final room layout
• Material specifications

Budget

• Construction
• Professional fees
• Permits
• Site preparation
• Utilities
• External works
• Contingency
• Move-in expenses

Contractor

• Detailed quotation
• BOQ
• Scope of work
• Material specifications
• Payment schedule
• Construction timeline
• Warranty
• Change-order procedure

Regulatory

• Applicable permits
• Required technical documents
• Local government requirements
• Required inspections

The Biggest Budgeting Mistakes to Avoid

A homeowner can prevent many financial problems by avoiding these mistakes.

Mistake 1: Using one price per square meter as the final budget

A rate is only a starting point.

Mistake 2: Spending the entire budget on construction

Professional, site, utility, external, and move-in expenses still need consideration.

Mistake 3: Choosing the lowest quotation automatically

A lower quotation may have a narrower scope.

Mistake 4: Changing the design during construction

Changes can cause additional materials, labor, and delays.

Mistake 5: Ignoring contingency

Unexpected costs are much easier to manage when money has already been reserved.

Mistake 6: Cutting structural requirements

Structural safety should never be treated as an optional upgrade.

Mistake 7: Failing to document the scope

A written BOQ and contract provide much greater clarity than verbal agreements.

Final Answer: How Much Money Do You Need?

So, how much does it really cost to build a house in the Philippines in 2026?

There is no single nationwide price.

The latest PSA data puts the average residential construction cost at ₱13,058.66 per square meter in July 2026 based on approved building permits.

Using planning scenarios, a homeowner might model construction at approximately ₱12,000, ₱15,000, ₱18,000, or ₱20,000+ per square meter depending on the intended specification.

That produces preliminary construction scenarios such as:

• 50 sqm: ₱600,000–₱1 million
• 80 sqm: ₱960,000–₱1.6 million
• 100 sqm: ₱1.2 million–₱2 million
• 120 sqm: ₱1.44 million–₱2.4 million
• 150 sqm: ₱1.8 million–₱3 million

These figures represent construction planning scenarios, not complete project budgets.

Professional services, permits, site preparation, utilities, external works, contingency, appliances, and furniture can increase the amount needed.

Location can also make a major difference. In Davao Region, PSA reported a Q1 2026 residential average of ₱14,381/sqm, while Davao City recorded ₱16,520/sqm.

The best way to budget your own house is therefore to start with the actual floor area and design, prepare a detailed BOQ, obtain comparable contractor quotations, identify what is included and excluded, add project-specific expenses, and maintain a contingency reserve.

Most importantly, do not sacrifice structural safety to achieve a lower price.

A well-planned house is not necessarily the house with the cheapest quotation. It is a project where the homeowner understands what is being built, what it costs, what is included, what is excluded, and how much money is required to complete it properly.

Sources and Research Basis

Philippine Statistics Authority — July 2026 Construction Statistics

The PSA’s July 2026 Construction Statistics from Approved Building Permits provides the national residential construction benchmark used throughout this guide. The release reports residential construction at ₱13,058.66 per square meter.

Philippine Statistics Authority — Davao Region Q1 2026

PSA Davao Region’s Q1 2026 release provides regional residential construction data, including the ₱14,381/sqm regional average and ₱16,520/sqm figure reported for Davao City.

Department of Public Works and Highways — National Building Code

The National Building Code of the Philippines, established under Presidential Decree No. 1096, provides the regulatory framework for many aspects of building design and construction.

Professional Regulation Commission — Architecture

PRC information was used to support the discussion of professional architectural practice and the role of licensed architects in building-related services.

Important Note About the Estimates

Construction prices can change based on location, material specifications, labor costs, project size, site conditions, design complexity, contractor scope, and procurement timing.

The official PSA figures are statistical benchmarks based on approved building-permit data. The calculations and budget scenarios in this article are original planning models created to help Filipino homeowners understand how floor area, construction rates, and additional project expenses interact.

They should not be treated as guaranteed contractor quotations.

Before committing money to a house project, homeowners should obtain current project-specific quotations based on their actual plans and specifications and confirm applicable requirements with the appropriate licensed professionals and local government authorities.