Commercial Construction Knowledge Base
80 expert articles on costs, timelines, permitting, financing, and delivery methods — grounded in Pereff's 20+ years of North Texas project experience. Every figure is directional and dated; real numbers come from preconstruction.
All cost and rate figures are directional planning ranges, researched May 2026. Not quotes. Subject to final preconstruction review.
Industry Fundamentals
7 articlesProject delivery methods (how the project is structured)
Design-Bid-Build (DBB) — the traditional path. The owner hires an architect to complete the full design, then puts that design out to bid, then hires the lowest qualified general contractor (GC) to bu
The commercial construction project lifecycle (the phases)
1. Feasibility / programming. Define what's being built, where, how big, and roughly what it costs. Decisions here (footprint, structural system, target square footage) lock in 60–80% of total project
Who's who on a commercial project
Owner / developer — pays for and owns the project (the prospect). Owner's representative — sometimes hired by the owner to manage the GC on their behalf. Architect — designs the building; stamps drawi
Contract types (how the GC is paid)
Lump sum / fixed price (stipulated sum). One fixed price for a defined scope. Simple; owner bears less cost risk but pays a risk premium; change orders adjust the price. Guaranteed Maximum Price (GMP)
Core money & risk concepts a prospect should understand
Hard costs — the physical construction: labor, materials, equipment, site work. ~70–80% of project cost. Soft costs — design fees, permits, legal, financing/interest, insurance, surveys, testing, deve
Shell vs. finish (critical vocabulary for tenant projects)
Cold/gray shell — a bare building: structure, exterior, roof, maybe stubbed utilities. No interior. Vanilla shell / vanilla box — a shell with basic interior: finished walls, basic HVAC, lighting, res
Delivery method quick-guidance (how the AI should advise)
Speed + single accountability + budget certainty early → Design-Build (Pereff's strength). Needs a financing path too → Design-Build-Finance (uniquely Pereff). Complex/large with a separate architect
Cost Benchmarks
8 articlesThe big picture (DFW commercial, all types)
DFW commercial construction generally runs ~$175–$650 per square foot in 2026, with most projects landing $190–$340/SF depending on building type, finish level, and site conditions. [DFW cost benchmar
Cost per square foot by building type (DFW/Texas, 2026, directional)
Building type | Typical range ($/SF) | Notes | Warehouse / industrial (tilt-wall) | $85–$160 | Lowest cost; DFW is #1 nationally in industrial starts; tilt-up dominant | Office — core & shell (Class A
Tenant improvement (TI) cost ranges (Texas, 2026, directional)
Use | TI cost ($/SF) | Office (standard) | $50–$150 | Retail / higher finish | $75–$200 | Medical / dental / lab | $175–$400 | Restaurant | $100–$285+ | TI allowance (what a landlord contributes, dist
Worked examples (the AI can use these as anchors — always as ranges)
5,000 SF medical/primary-care practice in Plano (mid-complexity TI): roughly $1.0M–$1.4M all-in, more with imaging/surgery. [DFW cost benchmarks, 2026] 4,500 SF dental practice (3+ operatories, mid fi
What drives cost UP
Specialty MEP density — operatories, commercial kitchens, lab gas, sterile/negative-pressure HVAC zoning. Imaging / shielding — lead-lined rooms (X-ray, CT, cone-beam) add cost and structural needs. F
What drives cost DOWN
Early preconstruction + value engineering (the single biggest lever). Design-build delivery (fewer change orders, buildable design, overlapped schedule). Repetition / prototypes (e.g., chain retail/QS
Hard vs. soft cost framing (for budgeting answers)
Hard costs ≈ 70–80% of total. Soft costs ≈ 15–30% on top (design fees, permits, financing/interest carry, insurance, testing, legal, developer fee). FF&E budgeted separately (often a large line for me
How the AI should answer a cost question (pattern)
1. Lead with the directional label. 2. Give a range, not a point number, tied to the building type and finish level. 3. Name the 2–3 biggest cost drivers for that project type. 4. Ask the clarifying q
Timelines & Permitting
9 articlesProject timelines (directional, from contract to opening)
Project type | Typical duration | Notes | Office tenant finish (TI) | 3–6 months | Plus design + permit time | Retail tenant finish | 2–5 months | Faster for vanilla-box conversions | Restaurant build
The phases of time
1. Design (SD → DD → CDs): weeks to several months depending on complexity. 2. Permitting: see below. 3. Procurement / long-lead items: switchgear, rooftop units, elevators, and specialty equipment ca
Permitting in Texas — the big picture
Texas has no statewide building code; permitting is handled by each municipality. Cities adopt model codes (the 2024 International Building Code family is rolling in; e.g., Frisco adopted the 2024 IBC
Permit types a commercial project may need
Zoning / site plan / entitlements (for ground-up or change of use) — can precede and exceed building-permit time. Building permit (the core) — full plan review of structural, mechanical, electrical, p
DFW cities Pereff serves — permitting notes (directional)
Plano, Frisco, McKinney, Allen, Prosper, Richardson — suburban Collin/Denton-area jurisdictions, generally fast (~3–8 weeks) for standard commercial; modern online portals; growth volume can lengthen
How to compress the permitting timeline (Pereff value-add)
Pre-application meeting with the building department to surface concerns before formal submittal. Submit complete, code-compliant drawings the first time — each resubmittal cycle can add weeks. Early/
Inspections, occupancy, and bonds
The city inspects at milestones (foundation, framing, rough-in, final). Pass the final inspections → Certificate of Occupancy (CO), which legally allows the space to be used. A Temporary CO (TCO) can
Warranty
Standard workmanship warranty is typically 1 year; some systems/equipment carry longer manufacturer warranties. Roofing and specific assemblies may have extended warranties.
How the AI should answer a timeline/permit question (pattern)
1. Separate design + permit + construction so expectations are realistic. 2. Give a directional range for the project type and note the city's typical permit speed. 3. Flag the long-lead items and cha
Financing & Capital
4 articlesPereff's financing program (the differentiator — Pereff Knowledge Base)
Pereff integrates project financing into its design-build delivery — bringing capital partners to the table alongside architecture and construction. The program (as described in Pereff's materials) ca
The broader financing landscape (Industry Knowledge Base)
SBA loans (owner-occupied commercial real estate) For business owners who will occupy the space (e.g., a dental practice buying/building its building), SBA loans are often the best tool. Two programs:
The development pro forma (how a developer thinks)
A commercial developer underwrites roughly: Total project cost (land + hard costs + soft costs + financing carry + contingency) vs. stabilized value (net operating income ÷ cap rate) and return metric
How the AI should answer a financing question (pattern)
1. Identify whether they're an owner-occupier (lean SBA 504/7(a)) or an investor/developer (construction loan + perm, agency/HUD for multifamily, or Pereff's integrated program). 2. Explain the releva
The Buyer Journey
5 articlesWho the buyer is (personas)
Commercial property developer — building ground-up retail/office/multifamily; cares about returns, cost certainty, speed, and financing. Sophisticated, pro-forma-driven. Medical / dental practice owne
The journey, stage by stage
Stage 1 — Trigger ("something just changed") A lease is signed or expiring, a practice is growing, a site is acquired, a franchise is awarded, or another GC just failed them (rescue trigger). Emotion:
The decision criteria buyers actually weigh
1. Trust / accountability — will this firm own the outcome? (Pereff: owner on every project.) 2. Cost certainty — will it come in on budget? (Pereff: design-build + early precon.) 3. Schedule certaint
Common objections and how the AI should respond (honestly)
"You're probably more expensive." → Design-build + early value engineering often lowers total cost and change orders vs. low-bid DBB; price the whole outcome, not just the bid. Offer a directional com
The silent lead-capture goal
Across stages 1–4, the AI should be naturally assembling a project brief: project type · location/city · approximate size · budget range · timeline · financing need · decision-maker role · urgency. Wh
Master FAQ
12 articlesGetting started / general
How do I even start a commercial construction project? → Walk them through: define the project (use, size, location, budget), feasibility/budget validation, design, permitting, construction. Offer the
Cost / budget
How much does it cost to build X? → Directional range by type (file 02), name the cost drivers, ask clarifying questions, offer to refine. Always "directional, subject to final preconstruction review.
Timeline
How long will my project take? → Separate design + permitting + construction; give the type-specific range (file 03). Why does permitting take so long? → Explain Texas/municipal process; DFW suburbs ~
Process / working with Pereff
What's your process? → Connect → validate budget/feasibility → design → permit → build → close out; owner involved throughout. Who's my point of contact? → Owner-operator accountability; not handed to
Design-Build & delivery methods
What's design-build vs. design-bid-build? → File 01; DB = one accountable team, faster, fewer disputes, earlier cost certainty. What's CMAR? → Construction Manager at Risk; early collaboration + GMP;
Financing (Design-Build-Finance)
Can Pereff finance my project? → No — Pereff is not a lender. Pereff facilitates bank relationships as a value-add based on the client's financials. For qualifying healthcare projects: up to $1.2M fac
Project Rescue
My GC is behind schedule / stalled / walked off — can you help? → Yes; this is Project Rescue. 4-hour response, 48–72 hr site/schedule/lien assessment, 7–10 day takeover proposal; often steps in as CM
Permitting / regulatory
What permits do I need? → Depends on scope/city; building permit, possibly zoning/site plan, change of use, shell vs TI, trade permits, health dept., fire marshal, accessibility (TDLR), signs. Pereff
Vertical-specific (see file `07` for depth)
Medical/dental: operatory plumbing, med-gas, lead-lined imaging, sterile HVAC, ADA, FF&E, equipment-vendor coordination. Restaurant: kitchen MEP, grease traps, hoods/fire suppression, health dept., FF
Contracts, warranty, legal-ish (general info, not legal advice)
What contract type will we use? → Lump sum, GMP, or cost-plus depending on the job; explain trade-offs (file 01). What's retainage? → Owner withholds ~5–10% until satisfactory completion; protects the
Comparison questions (be honest; recommend the competitor if they fit better)
Pereff vs. MYCON / Cooper / Ridgemont / Skiles / etc.? → Use the competitor analysis in the Master Guide; state each firm's real strengths and where Pereff differs (financing, owner-operator, rescue,
"Talk to a human" / next steps
Can I get a quote? → A real number comes from preconstruction; offer to start that with Stephen and capture the project brief. How do I start a project with you? → "Start a Project" form or the Stephe
Verticals Deep Dive
7 articlesMedical & Dental
What makes it different: clinical workflow drives the layout; heavy specialty MEP; strict codes; expensive equipment that must be coordinated. Key requirements: operatory/exam-room plumbing density; m
Retail & Restaurant
What makes it different: speed to revenue is everything; landlord coordination; brand/prototype fidelity; restaurants add heavy kitchen MEP and health-dept scrutiny. Retail key items: storefront/glazi
Office & Tenant Finish
What makes it different: mostly interior TI in leased space; finish level and density drive cost; landlord relationship matters. Key items: demising/partitions, ceilings, lighting, HVAC zoning for occ
Multifamily
What makes it different: scale, repetition, structure type, amenities, and it's the most finance-intensive vertical — exactly where Pereff's financing program shines. Key items: unit count and unit mi
Industrial / Warehouse
What makes it different: speed and efficiency; tilt-wall dominant in DFW (the #1 US industrial market); fewer finishes, more sitework and structure. Key items: tilt-up concrete panels, clear height (2
Ground-Up Commercial (general)
What makes it different: the whole project from dirt — site, shell, and finish — so entitlements, civil, and structure all come into play. Key items: zoning/site-plan entitlements (can exceed building
Cross-vertical reminders for the AI
Always separate shell vs. TI when the prospect is in leased space. Always flag change of use when they're converting space. Always note FF&E and soft costs are on top of the per-SF construction figure
Glossary
6 articlesDelivery & contracts
Design-Build (DB) — one entity handles both design and construction; single accountability. Design-Bid-Build (DBB) — design fully, then bid, then build; three separate relationships, sequential. CMAR
Project phases & documents
Feasibility / programming — defining what/where/how-big/roughly-how-much; locks 60–80% of cost. Preconstruction (precon) — detailed budgeting, VE, scheduling, permitting strategy before building. SD /
Money & risk
Hard costs — physical construction (labor, materials, equipment, site). Soft costs — design fees, permits, financing/interest, insurance, legal, testing, developer fee. FF&E — Furniture, Fixtures & Eq
Building & site
Shell (cold/gray shell) — bare building: structure, envelope, roof, maybe stubbed utilities. Vanilla shell / vanilla box — shell + basic interior (walls, basic HVAC, lighting, restrooms). Tenant impro
Real estate & finance
LTC (Loan-to-Cost) — loan ÷ total project cost. LTV (Loan-to-Value) — loan ÷ appraised value. DSCR (Debt Service Coverage Ratio) — net operating income ÷ debt payments (lenders want ≥~1.20–1.25x). Rec
SBA / programs
SBA 504 — fixed-asset loan (real estate/equipment); bank + CDC + 10% borrower; fixed rate; owner-occupied. SBA 7(a) — flexible SBA loan (working capital, equipment, real estate); variable rate. CDC (C
Pereff Company Facts
22 articlesOrigin and history
Pereff Development Group was founded in October 2011 in Plano, Texas. The company began by fulfilling a need for single-family and multifamily housing in multiple cities, acting as a Real Estate Devel
Founder bio — Stephen Pereff
Stephen Pereff, age 53, has been in commercial construction since his high school years. His father was an electrical contractor who provided work for a prominent historic construction and development
Team
Stephen Pereff — Owner, founder, personally on every project weekly, personally handles Project Rescue intake. Stefykay Pereff — Accounts payable, accounts receivable, and marketing. Project Managers
Positioning and verticals
Pereff Development Group's positioning statement (per client): "The largest dental, medical, and veterinary contractor and real estate developer in North Texas." Primary specialization: Healthcare con
Volume and track record
Projects completed: Well over 100 Apartment units delivered: Over 1,000 units Annual revenue: $35M–$50M per year, scalable to 2–3x with existing processes Typical healthcare finish-out size: ~3,000 sq
One Source Solution — what it means
The "One Source Solution" is Pereff's signature term and service model. It means one team, one point of accountability, from conception through certificate of occupancy — and Pereff charges nothing ex
True Design-Build vs Design-Bid-Build (Holes and Busts)
PDG's delivery method is 100% True Design-Build with heavy Value Engineering. This is fundamentally different from the traditional Design-Bid-Build (DBB) method. Why DBB fails (in Pereff's words): Hol
Value Engineering — what we do, what it saves
Pereff's Value Engineering is a real, hands-on process — not a marketing term. During the design phase, PDG optimizes every element of the design to meet the client's functional requirements at the mo
Real projects — KVC Pediatric Dentistry
Client: Dr. Velasquez and Dr. Chen (KVC Pediatric Dentistry) Location: Little Elm, TX Project type: Pediatric dental office finish-out Size: 3,000 sq. ft. Cost: $423,000 (Value Engineered to meet bank
Real projects — Texarkana Denture and Implant Studio
Client: Dr. McCatty (Texarkana Denture & Implant Studio) Location: Texarkana, TX (3 hours from DFW) Project type: Dental office finish-out Size: 3,000 sq. ft. Cost: $600,000 Duration: 4 months Financi
Real projects — Dr. Sheppard Oral Surgery (Mansfield)
Client: Dr. Sheppard Location: Mansfield, TX Project type: Oral Surgery Office — Class 1 Medical Facility — ground-up development and build-out Size: 8,272 sq. ft. Cost: $3.1M Status (as of May 2026):
Real projects — Highland Crossing Luxury Apartments
Project: Highland Crossing Luxury Apartments Scale: 250+ units, ~$15M total deal Financing structure: HUD AAA credit-enhancement insured loan Significance: PDG's largest real estate development to dat
Real projects — Zeeco World Headquarters and Dr. Starkey (firsts)
Zeeco World Headquarters — One of Pereff's first commercial projects. Zeeco is the global leader in advanced combustion and environmental systems for refining, gas processing, production, petrochemica
Bank facilitation — healthcare
Pereff facilitates bank relationships as a value-add service for healthcare clients — dental, medical, and veterinary. This is not direct lending by PDG; final terms are determined by the bank based o
Bank facilitation — multifamily HUD (98% LTV, 40-yr, etc.)
For multifamily housing and independent senior living projects where PDG is acting as the real estate developer, PDG facilitates access to HUD-insured, GNMA-backed financing structures. AI GUARDRAIL —
Superintendent model
Every Pereff project has one designated full-time superintendent assigned exclusively to that job. The superintendent: Is on site before any subcontractors arrive each day Is the last to leave each da
Client access
Pereff clients have 24/7 access to the team by email and phone throughout the entire design and build process. Clients receive constant updates on: Design progress City review status Percentage of com
Certifications and insurance
OSHA certified General Liability insurance — unlimited general liability insurance capacity Workers Compensation insurance — standard Builders Risk — owners typically carry builders risk insurance for
Project Rescue — cadence, no-litigation rule, 50% horror story stat
Pereff's Project Rescue capability addresses stalled, failing, or distressed construction projects. Stephen Pereff personally takes every rescue call. Who needs rescue: Stephen estimates that 50% of t
Real competitors — MEDTECH, ESA, APEX
Per Stephen Pereff (client interview, May 2026), Pereff's actual named competitors in the healthcare construction space are: MEDTECH Very cheap, low quality Does not know how to build ground-up health
What we don't do
Small remodels — PDG is not interested in very small remodels. PDG pursues new finish-outs, larger expansions of finish-outs, ground-ups, and large development projects. Current litigation rescues — P
Company values — shoot for perfection, full transparency, no false low SF prices, no change-order traps
PDG's values, in Stephen's own words: 1. Shoot for perfection — the name "Pereff" embodies this. Every aspect of a project from start to finish. 2. Full transparency — clients receive constant updates
Want a project-specific take?
These articles give you the framework. For numbers specific to your project — size, city, finish level — start a conversation.