Buying a flat in South Delhi involves more than comparing prices. A ready-to-move home offers immediate possession and the opportunity to inspect the finished property, while an under-construction flat offers greater choice and potentially more flexibility in customisation.
For homebuyers and investors, the decision affects cash flow, tax liability, possession timelines and investment risk. The right option depends on your budget, priorities and willingness to wait.
In Short
Ready-to-move flats suit buyers who prioritise immediate possession and certainty. Under-construction flats appeal to those willing to wait for a wider choice of units, potential customisation and construction-linked payments, provided the project and developer are thoroughly verified.
What the Two Terms Mean
A ready-to-move flat is a completed apartment with the applicable completion or occupancy certificate. An under-construction flat is purchased before construction is complete and the required certificate has been issued.
Neither category is automatically safer or better value. The decision depends on the project's legal status, the developer's track record, the agreement terms and the buyer's financial position. Due diligence is essential, even when buying from an established real estate developer.
Why Under-Construction Flats Deserve a Serious Look
First Choice of Floor, View and Orientation
A project's launch generally offers the widest selection of available units. In South Delhi, where privacy, views and orientation can influence desirability, early buyers may have more scope to choose an apartment that suits their preferences.
Scope for Personalisation
Depending on the construction stage and the developer's policy, buyers may be able to select certain finishes or make permitted layout adjustments. Confirm the available options, additional costs and deadlines in writing. Ready-to-move homes generally offer more flexibility through interior design than structural changes.
Construction-Linked Payments
Under-construction projects may spread payments across defined construction milestones, reducing the need to pay the entire purchase amount upfront. Home-loan disbursements may also follow the construction schedule, subject to the lender's terms.
Legal Safeguards Under RERA
The Real Estate (Regulation and Development) Act, 2016 (RERA) provides important safeguards for buyers of registered projects:
- Project Disclosures: Buyers can check registration details and other prescribed project information on the relevant state or union territory RERA portal.
- The 70% Account Requirement: Section 4(2)(l)(D) generally requires 70% of amounts realised from allottees to be deposited in a separate account for land and construction costs. Withdrawals are subject to prescribed conditions, including certification by an engineer, an architect and a chartered accountant.
- Remedies for Delay: Under Section 18, eligible buyers may seek a refund with interest or, if they remain in the project, interest for the period of delay, subject to the applicable legal provisions.
RERA provides legal recourse; it does not guarantee timely completion or defect-free construction.
Contemporary Planning and Specifications
Newer developments may offer modern layouts, building systems and amenities. Buyers should assess these features against approved plans, technical specifications and contractual commitments rather than relying on promotional material.
Ready-to-Move Flats: Where They Win and Where They Fall Short
Advantages
- Physical Inspection: Assess the apartment's natural light, ventilation, finishes and common areas before committing.
- Immediate Possession: Move in or begin renting after completing the required registration and handover formalities.
- No GST on Completed Homes: The sale of a completed property is generally outside GST where the entire consideration is received after the applicable completion or occupancy certificate, subject to the law. Stamp duty and registration charges still apply.
- Lower Construction Risk: You avoid waiting for the building to be completed, although legal, structural and maintenance risks remain.
Drawbacks
- Potential Price Premium: Completed homes may cost more than comparable units under construction. Compare the total acquisition cost before deciding.
- Limited Inventory: Buyers must choose from the available apartments rather than the original project selection.
- Restricted Customisation: Structural changes and alterations to building services are generally difficult or prohibited.
- Older Building Stock: Some completed properties predate RERA or may have ageing infrastructure. Check approvals, maintenance records and the applicable legal framework.
- Concealed Defects: A finished apartment can be inspected, but its visible condition does not establish the quality of concealed plumbing, wiring or structural elements.
Ready-to-Move vs Under-Construction Flats
| Factor | Under-Construction Flat | Ready-to-Move Flat |
|---|---|---|
| Possession | Future date specified in the agreement | After required formalities and handover |
| Unit Choice | Generally wider at launch | Limited to available inventory |
| Customisation | Possible if permitted by the developer | Primarily interior modifications |
| Payments | May follow construction milestones | Typically requires a larger upfront outlay |
| GST | Applicable rate depends on the property category and conditions | Generally no GST on qualifying completed-property sales |
| Inspection | Plans, specifications and construction progress | The actual apartment and common areas |
| Delivery Risk | Construction and possession risks remain | No construction wait for a completed unit |
Which Option Fits Which Buyer?
Choose under construction if you can accommodate a longer timeline, value early unit selection and have verified the developer's record, project registration and contractual commitments. This option may suit buyers planning for long-term ownership rather than immediate occupancy.
Choose ready-to-move if you need a home soon, want to inspect the actual apartment or prefer to avoid construction-related delays. It can also simplify budgeting by removing the uncertainty of a future possession date.
For example, Swaranaya is KREEVA's residential project in New Friends Colony, South Delhi, with 114 residences and wraparound balconies offering views of the Lotus Temple. Its stated RERA registration number is DLRERA2026P0007, which buyers should independently verify on the relevant regulatory portal. In a limited-inventory development, unit selection may be an important consideration for buyers evaluating an under-construction purchase.
Conclusion
The choice comes down to the balance between certainty and flexibility. Ready-to-move flats offer an inspectable property and quicker occupancy, while under-construction flats can provide a wider initial selection and staged payments in exchange for waiting and taking on delivery risk.
Key Takeaways
- Compare the total cost of acquisition and ownership, not just the quoted price.
- Understand RERA protections and the remedies available if possession is delayed.
- Verify project registration, approvals, the Agreement for Sale and the developer's track record before booking.
If you are exploring flats in South Delhi, compare specific units using the same cost framework, review the relevant documents and inspect the property or construction site before making a decision.