Phase 4 brings South Delhi its first proper east-west metro link, and a rewritten transit-oriented development policy opens everything within 500 metres of a corridor to denser building. Both are real. But the colonies the Golden Line serves are not the ones most buyers picture, and one number in the TOD rules quietly shuts almost every South Delhi plot owner out of the upside.
In parts of it, yes — but mostly in the outer south, not the established colonies. The Phase 4 line that matters here is the Golden Line, running Delhi Aerocity to Tughlakabad. It serves Mahipalpur, Vasant Kunj, Kishangarh, Chhatarpur, IGNOU, Neb Sarai, Saket G Block, Sangam Vihar and Tughlakabad. The colonies most people mean by South Delhi — Greater Kailash, Defence Colony, Vasant Vihar, Hauz Khas — already sit on the Yellow, Violet, Magenta and Pink lines, so Phase 4 adds convenience rather than a new connection. The bigger change is regulatory: the 2026 transit-oriented development rules allow much denser building within 500 metres of a corridor, with floor area ratio up to 400–500. The catch is a 2,000 sq m minimum plot size — roughly 2,390 sq yards — which a typical 200 to 800 sq yard South Delhi plot cannot meet alone.
Infrastructure announcements move prices through expectation long before they move anyone through a station. It is worth separating what is being built, when it opens, and what the law now permits near it — because those three things have very different timelines.
Phase 4 began in 2019. The corridor that touches South Delhi is the Golden Line (Line 10), from Delhi Aerocity to Tughlakabad — the first metro link running east to west across the southern belt, rather than funnelling everyone through the centre.
Published figures differ, and it is worth knowing why. Sources tracking the line as being built describe roughly 23.6 km with 15 stations; others count an approved branch and extension and give around 30 km with 19 stations. Either way, about 19.3 km of it is underground, which is why it has taken as long as it has.
| Station | Why it matters |
|---|---|
| Delhi Aerocity | Interchange with the Airport Express; an RRTS interchange and a bus terminus are planned here |
| Mahipalpur | The airport-side hotel and commercial belt |
| Vasant Kunj | The largest residential catchment on the western half |
| Kishangarh, Chhatarpur Mandir | The farmhouse belt and the Mehrauli side |
| IGNOU, Neb Sarai | The institutional belt south of Saket |
| Saket G Block | Where the branch line splits off; the Saket mall and hospital cluster |
| Sangam Vihar, Tughlakabad | Tughlakabad interchanges with the Violet Line and the railway station |
As of October 2026 the line is still under construction. DMRC is targeting December 2026 for the first section: Tughlakabad to Sangam Vihar, 8.4 km and four stations, with the rest following in stages. Tunnelling has been progressing steadily — breakthroughs were completed at Chhatarpur Mandir to IGNOU in February 2025, at Vasant Kunj in March 2025 and near Tughlakabad in June 2025.
Metro timelines slip, in Delhi as everywhere. The useful question for a buyer is not when the line opens but whether you would still want the house if it opened three years late. Buy the home; treat the station as an upside, not as the reason.
South Delhi is better served than the Phase 4 coverage suggests. The Yellow Line is the district’s spine, running through INA, AIIMS, Green Park, Hauz Khas, Malviya Nagar and Saket. The Magenta Line crosses the west and centre at IIT Delhi, Hauz Khas, Panchsheel Park, Chirag Delhi, Greater Kailash and Kalkaji Mandir. The Violet Line covers the eastern side through Lajpat Nagar, Moolchand and Kailash Colony, and the Pink Line picks up South Extension and the Ring Road belt.
So for most established colonies, Phase 4 is an improvement in reach rather than a first connection:
The honest version for a buyer in the core colonies is that Phase 4 is not a reason to pay more. The airport connection is a genuine convenience, and for a household that flies often it is worth something. It is not a price event the way a first station is in an unconnected area.
The bigger story is not the track, it is the planning rule attached to it. Transit-oriented development has existed in Delhi’s master plan since 2015, but the TOD Regulations and Charges notified in 2026 rewrote the terms, and the master plan now treats it as a principal source of new housing.
| Provision | What is reported |
|---|---|
| Influence zone | 500 metres on either side of a metro corridor; 500 metres around RRTS and railway stations, for operational and proposed corridors alike |
| Planning area | An 800-metre TOD planning area, with the inner 500 metres as the intense development area |
| Minimum plot | Reduced from 8 hectares to 2,000 sq m |
| FAR | Raised to roughly 400–500, against the far lower baseline for a plotted colony |
| Coverage | About 207 sq km of Delhi falls within the influence zones |
| Use | Mixed use and high density, with an affordable-housing component |
The 2,000 sq m minimum is the number that matters, and it is easy to miss. 2,000 sq m is about 2,390 sq yards. A South Delhi builder floor typically stands on a plot of 200 to 800 sq yards. Even the large plots in Vasant Vihar, Maharani Bagh or Neeti Bagh fall well short on their own.
So TOD in a plotted colony is not something an individual owner opts into. It would need several adjoining plots amalgamated under one scheme, which in a freehold colony of separate owners is a slow, consent-heavy exercise. Realistically the early TOD development will be on institutional land, DDA parcels and larger sites — the authority has already identified a set of land parcels along metro corridors for exactly this.
If someone tells you a plot is “a TOD plot” and worth a premium because a station is nearby, ask two questions: is it inside a notified influence zone of a notified TOD node, and does the scheme have 2,000 sq m? A single 400-yard plot 300 metres from a station meets the first and fails the second. The master plan’s wider provisions are covered in our MPD 2047 highlights and what it means for South Delhi.
From what we see in transactions, metro proximity in South Delhi behaves less like a premium and more like a filter. Three patterns:
A walkable station is a strong rental argument, particularly for professional tenants and company leases. Owner-occupier buyers in the premium colonies usually drive, and weigh quiet more heavily. Our rental income guide covers the landlord side.
Directly beside a station entrance you get auto and cab queues, foot traffic and hawkers. The sweet spot is a short walk away, not a shared boundary — the same logic as the market and main-road trade-offs in our corner and park-facing guide.
Asking prices near an announced corridor tend to move on the announcement. Closed deals move much later, if at all. That gap is where buyers overpay, so test any “metro premium” against actual closed deals in the same block.
For a wider view of which colonies sit where, see our South Delhi map, the area-wise pricing page, and the markets map, since station, market and school access tend to move together.
DMRC is targeting December 2026 for the first section, Tughlakabad to Sangam Vihar, which is 8.4 km with four stations. The remainder is expected to open in stages afterwards. As of October 2026 the line is still under construction, and metro timelines commonly slip.
Mahipalpur, Vasant Kunj, Kishangarh, Chhatarpur Mandir, IGNOU, Neb Sarai, Saket G Block, Sangam Vihar and Tughlakabad, along with Delhi Aerocity at the western end. The established colonies such as Greater Kailash, Defence Colony, Vasant Vihar and Hauz Khas are already served by existing lines.
Transit-oriented development allows denser, mixed-use building near transit. The influence zone runs 500 metres on either side of a metro corridor, and 500 metres around RRTS and railway stations, within an 800-metre planning area. It applies only in the influence zones of notified TOD nodes.
Almost certainly not on its own. The minimum plot size for a TOD scheme is 2,000 sq m, about 2,390 sq yards, while South Delhi builder floors usually stand on 200 to 800 sq yard plots. Using TOD would require amalgamating several adjoining plots under one scheme, with every owner’s consent.
It helps most where there was no connection before, and it strengthens rental demand more than owner-occupier demand in premium colonies. Being immediately beside a station entrance can be a drawback because of queues and foot traffic. Asking prices tend to move on the announcement; closed deals move much later, so compare actual transactions.
The Yellow Line through INA, AIIMS, Green Park, Hauz Khas, Malviya Nagar and Saket; the Magenta Line through IIT Delhi, Hauz Khas, Panchsheel Park, Chirag Delhi, Greater Kailash and Kalkaji Mandir; the Violet Line through Lajpat Nagar, Moolchand and Kailash Colony; and the Pink Line through South Extension and the Ring Road belt.
Only if the home works for you without the station. Infrastructure timelines slip, and the expectation is often already in the asking price. A useful test is whether you would still be happy with the purchase if the line opened three years later than announced.
Send us the address. We will tell you whether the station is a real change or already priced in, and what closed deals nearby actually show.
Sources: Golden Line route, length and station details from Metro Rail News and Wikipedia, which differ on whether an approved extension is counted; tunnelling milestones from News On AIR and The Tribune; TOD influence zone and definitions from the DDA TOD Regulations; the 2026 TOD notification, the 2,000 sq m minimum, FAR of 400–500 and the 207 sq km figure as reported by The Policy Edge and Business Standard. Opening dates are targets, not commitments. Plot-size and FAR figures are as reported in the press; confirm against the gazette notification before acting.
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