Philadelphia's housing market includes a steady supply of new construction, particularly in neighborhoods where older rowhouse stock has been demolished or where infill development has taken over vacant lots and former industrial parcels. Fishtown, Point Breeze, Northern Liberties, East Kensington, and parts of South Philly and West Philly have all seen significant new construction activity over the past decade.
Buying new construction is different from buying resale in ways that catch many buyers off guard. The contract structure is different. The deposit is larger and riskier. There is no traditional inspection contingency. The certificate of occupancy process is the developer's responsibility but becomes your problem if it goes wrong. And Pennsylvania's builder warranty law provides less protection than buyers assume.
This guide covers how Philadelphia new construction transactions actually work, what the contract protects and what it doesn't, and the eight things every buyer should do before signing.
Philadelphia new construction takes two main forms: spec builds and presales.
In a spec build, the developer constructs the property first and sells it when it's complete or nearly complete. You can walk through a finished or substantially finished property before signing. These transactions move fastest and have the fewest unknowns, but you have less ability to customize finishes.
In a presale, you sign a contract and pay a deposit before construction begins or during early stages. You choose finishes from a developer's selection menu, and settlement happens when construction is complete, typically 6 to 18 months later. The risk is higher: you are committing significant money to a property that doesn't yet exist, built by a developer whose track record you need to verify.
Philadelphia's new construction market is dominated by attached rowhouses and townhomes, typically three or four stories, often in groups of two to eight units developed simultaneously by the same builder. High-rise and mid-rise condo development is concentrated in Center City and University City. Single-family detached new construction is uncommon inside the city.
New construction sales almost always use the developer's proprietary contract, not the standard PAR (Pennsylvania Association of Realtors) Agreement of Sale. This distinction matters. The PAR Agreement of Sale is a balanced, heavily negotiated form that protects both parties. A developer's contract is written by the developer's attorneys to protect the developer.
Key differences between a new construction contract and the PAR Agreement of Sale:
| Issue | PAR Agreement of Sale (Resale) | Typical New Construction Contract |
|---|---|---|
| Inspection contingency | Standard 10-day period; buyer can terminate or request repairs | Usually none — property sold as new construction per plans and specs |
| Deposit structure | 1–3% (owner-occupant); held in escrow by title company or broker | 5–10%; often held by developer, not neutral escrow; staged releases common |
| Settlement date | Fixed date, mutual agreement | Contingent on construction completion; developer controls timeline; extensions common |
| Material changes | Property as observed at time of offer | Developer may substitute materials "of equal or greater value" at discretion |
| Certificate of Occupancy | Seller's responsibility to obtain U&O before settlement | Developer's CO obligation; temporary CO provisions common |
| Buyer default | Deposit retained as liquidated damages | Deposit retained; some contracts allow developer to pursue additional damages |
| Developer default | Buyer gets deposit back + possible specific performance | Often limited to deposit refund only; specific performance rights may be waived |
Have an attorney review the contract before signing. New construction contracts are long, developer-favorable, and contain provisions that appear standard but carry significant risk. A real estate attorney's review typically costs $500 to $1,500 and is among the best dollars spent in any new construction transaction.
New construction deposits in Philadelphia typically run 5 to 10 percent of the purchase price. On a $500,000 rowhouse, that's $25,000 to $50,000. On a presale with an 18-month construction timeline, your deposit sits with the developer for the full period.
Unlike a resale transaction where the deposit is held in escrow by a neutral party (title company or broker), new construction contracts often permit the developer to use the deposit for construction costs. If the developer runs into financial trouble, your deposit may be gone even before the project is finished. This is not hypothetical: Philadelphia has seen developer insolvencies mid-project that left presale buyers holding the loss.
Before signing, ask specifically: Where is my deposit held? Is it in an escrow account segregated from the developer's operating funds? Who is the escrow agent? Can you see the escrow documentation? A reputable developer with a clean track record will have clear, buyer-protective answers. Vague or evasive responses are a warning sign.
The deposit is generally non-refundable once the contingency period (if any) has passed. If you cannot secure financing, your deposit is at risk. Make sure your pre-approval is solid and your rate lock strategy accounts for the construction timeline before committing.
Pennsylvania's Home Improvement Consumer Protection Act and the PA New Home Warranty Act (Act 1 of 1999) establish minimum warranty periods that apply to all new residential construction sold in the state. These are floor protections, not ceilings. Your contract may extend them; it cannot legally eliminate them for new homes covered by the act.
| Warranty Period | What It Covers | Notes |
|---|---|---|
| 1 year | Workmanship defects: anything that doesn't conform to the contract, plans, and applicable building codes | Broadest coverage; includes cosmetic defects, finish quality, incomplete work |
| 2 years | Mechanical systems: plumbing, electrical, HVAC, and other installed systems | Covers systems installed by the builder; does not cover appliances separately warranted by manufacturers |
| 10 years | Structural defects: load-bearing elements, foundation, framing, party walls | Narrowly defined; must be actual structural failure, not just defect; most claims fail to meet the standard |
The warranty requires written notice to the builder for each defect. Keep records of everything. Photograph defects as you discover them, send written notice via certified mail or email with delivery receipt, and track responses. Warranty claims that aren't properly documented are much harder to enforce.
Many builders also offer third-party warranty programs (such as 2-10 Home Buyers Warranty) that provide insurance backing for the structural warranty period. These programs add a layer of protection if the builder goes out of business, but their claims process can be slow and adversarial. Understand the program's limitations before relying on it as your primary protection.
Philadelphia requires a Certificate of Occupancy (CO) before a new building can be legally occupied. The CO is issued by the Department of Licenses and Inspections after the building passes final inspection. Without a CO, the property cannot legally be occupied, and most mortgage lenders will not fund the loan.
For new construction, watch for two CO scenarios that create risk for buyers:
Temporary CO: L&I may issue a Temporary Certificate of Occupancy when a property is substantially complete but has outstanding punch list items or minor code deficiencies. A temporary CO allows the buyer to move in while the remaining items are resolved. This sounds reasonable but creates leverage problems: once you've settled and moved in, your motivation to push the developer for completion drops. Developers know this. Before accepting a temporary CO at settlement, get a written, specific list of outstanding items and a timeline for completion, ideally with a portion of the purchase price held in escrow until the final CO is issued.
CO delays: If L&I finds code violations at final inspection, the CO is not issued. This delays settlement. New construction contracts almost always give the developer the right to extend the settlement date to obtain the CO. You have limited recourse during this period, and your rate lock may expire, creating additional financing costs.
Verify CO status before settlement. Check eCLIPSE (the City's permit tracking system) to confirm a final CO has been issued for your unit's address before settlement day. A temporary CO is not the same as a final CO, and you should know which one you're settling under.
New construction transactions include a pre-settlement walkthrough, typically scheduled one to two weeks before settlement. This is your opportunity to document every defect, incomplete item, and discrepancy from the contract before you close. The punch list generated from this walkthrough is a critical document.
Take the walkthrough seriously. Bring someone with construction knowledge if possible, and allocate two to three hours for a thorough review. Check every room, every door and window (open and close them), every outlet, every fixture, every appliance, every surface. Look at caulking, grout, paint coverage, floor transitions, trim installation, and weather stripping. Run the HVAC system. Run water at every fixture. Test the dishwasher, garbage disposal, and range hood.
Everything you identify at the walkthrough goes on the punch list, which becomes an addendum to the settlement. The developer commits in writing to complete these items. The challenge is enforcement after settlement. For significant items, negotiate an escrow holdback — money withheld from the developer's proceeds at settlement until items are verified complete. Small builders may resist this. A buyer's agent experienced in new construction can help negotiate it.
Philadelphia new construction has recurring defect patterns that buyers and their inspectors should specifically look for:
| Defect Category | What to Look For | Risk Level |
|---|---|---|
| Waterproofing and flashing | Water infiltration at rooftop deck penetrations, parapet walls, window flashing, and party wall interfaces; check for water staining in upper floors and at exterior wall bases | High — waterproofing failures are Philadelphia's most common new construction defect and can be expensive to remediate post-occupancy |
| HVAC oversizing | Systems that cycle on and off too frequently, inconsistent temperatures between floors, excessive humidity; common when builders use oversized units to reduce installation complexity | Medium — causes comfort issues and premature system wear; requires HVAC engineer to diagnose and correct |
| Party wall finishing | Fire rating, sound attenuation, and air sealing at party walls; gaps in insulation, improperly sealed penetrations, missing fire-rated assemblies | Medium to high — directly affects fire safety and sound isolation; may require partial demolition to remediate |
| Electrical rough-in | Outlets without ground fault protection where required (bathrooms, kitchens, exterior), missing AFCI protection, panel capacity limits hit early in the property's life | Medium — code violations that must be corrected; undersized panels limit future EV charging or appliance upgrades |
| Rooftop deck drainage | Deck drains that don't connect properly to the downspout system, ponding water, inadequate slope, improperly installed drain guards; leads to leaks in the top-floor ceiling | High — rooftop decks are popular in Philly new construction and are a leading source of water infiltration |
| Foundation and waterproofing | Basement slab cracks, water at foundation walls, inadequate dampproofing vs. waterproofing at below-grade walls; particularly important on lots adjacent to former industrial uses | Medium to high — foundation water infiltration is disruptive and expensive to retrofit |
Philadelphia's residential tax abatement program remains one of the most significant financial incentives for new construction buyers. Properties that receive abatement pay property taxes only on the land value, not the improvement value, for the abatement period. On a new construction rowhouse assessed at $500,000 on a lot assessed at $80,000, the abatement effectively reduces annual property taxes by $5,000 to $8,000 or more during the abatement period.
As of 2026, Philadelphia's residential abatement program for new construction provides a phased abatement over 10 years: 100% abatement in years 1 through 5, then declining by 10% per year through year 10. This means a new construction buyer in year one pays effectively no taxes on improvements, while a buyer who purchases the same property in year six is entering the declining phase of the abatement.
Factor abatement into your financial modeling. The abatement cliff — when abatement expires and full property taxes become due — significantly affects the carrying cost of the property and its resale value. A buyer purchasing a property in year eight of abatement is two years from full taxation. Buyers should underwrite the property at post-abatement tax levels, not the current near-zero level.
Abatement is applied for by the developer and confirmed with the Office of Property Assessment (OPA). Ask for documentation that the abatement has been applied for and confirmed before settlement. An abatement that was expected but never filed or approved is a significant financial surprise.
New construction presales present financing challenges that resale purchases don't. The gap between signing a contract and settlement can be 12 to 18 months, but most mortgage rate locks extend only 30 to 90 days. Rate lock extension fees accumulate if construction is delayed, and rate environment changes during the construction period can significantly affect the buyer's monthly payment.
Options for managing rate risk in presale purchases:
Get a mortgage pre-approval before signing any new construction contract, and discuss your lender's new construction product options in detail. Not all lenders handle new construction closing timelines the same way.
Investors who buy new construction presales sometimes want the option to assign their contract to a different buyer before settlement. An assignment clause allows the original buyer to transfer their contract rights to a third party, capturing appreciation between signing and completion without ever taking title.
Most Philadelphia developer contracts either prohibit assignment entirely or require developer consent. Read your contract carefully. An assignment prohibition means you must close on the property or forfeit your deposit. If you're buying as a speculative investment with the intent to flip before settlement, confirm assignment rights before signing.
Also be aware of mechanic's lien exposure. If the developer has not paid subcontractors before settlement, those subs may file mechanic's liens against the property after you take title, even though you were not a party to the underlying dispute. Pennsylvania's mechanics lien law allows liens to relate back to the commencement of construction. Ask for lien waivers from the general contractor and major subcontractors at or before settlement. Your title company should be coordinating this, but confirm it explicitly.
Not all Philadelphia developers carry the same track record, financial stability, or construction quality. Before signing a new construction contract, research the developer thoroughly:
Philadelphia's transfer tax of 4.278 percent (city plus state) applies to new construction sales just as it does to resale transactions. The split between buyer and seller is negotiable. Many Philadelphia developers credit 2 percent to 3 percent toward buyer closing costs in the initial offering phase to compete with resale alternatives, but this practice varies by developer and market conditions.
New construction buyers also pay standard closing costs: title insurance, lender fees, prepaid escrow for taxes and insurance, recording fees, and the U&O certificate if required. See the Philadelphia closing costs guide for a full breakdown. Builder-provided credits sometimes cover a portion of these costs but rarely cover them entirely.
Before buying any Philadelphia property, run a free Flagstone report to check permit history, L&I violations, open permits, and public records on the address.
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