Rajagiriya: A constrained market with high growth velocity

In 2024, Rajagiriya reaffirmed its position as one of the most constrained and high-potential suburbs in Colombo’s apartment market. With a 29.7 percent price increase year-over-year, rising from US $ 91 to US $ 118 per square foot from 2023 4Q to 2024 4Q, it outperformed other suburbs such as Battaramulla (21.9 percent), Malabe (7.5 percent) and Thalawathugoda (24.6 percent). Only Mount Lavinia showed a comparable rebound of 29 percent but with nearly 61 percent more supply than Rajagiriya.

Over the five-year span from 4Q 2020 to 4Q 2024, Rajagiriya has made remarkable recovery to its pre-pandemic prices. Its price recovery from the 2022 trough (US $ 78 per square foot) to 2024 (US $ 118) represents a 51.3 percent gain in just two years, the second highest among 13 other suburbs, only behind Mount Lavinia.

Supply rigidity and saturation metrics

Rajagiriya’s apartment stock has remained unchanged at 306 units since 2020, accounting for just 6.71 percent of the total apartment volume across the 13 surveyed suburbs by RIUNIT in 2024. In comparison, Dehiwela accounts for 19.54 percent (891 units), Athurugiriya 16.68 percent (761 units) and Battaramulla 12.6 percent (577 units). Despite its limited supply, Rajagiriya achieved a 100 percent absorption rate in both 2023 and 2024, joining just five other locations: Nugegoda, Ethul Kotte, Dehiwela, Wattala and Ratmalana, in fully saturating inventory.

The average annual supply growth across the overall suburb regions was 24.22 percent from 2020 to 2024. Rajagiriya reported zero percent growth during the same period, highlighting its severely limited development space. Dehiwela’s stock grew 39.4 percent over five years and Nugegoda 25.2 percent, further diluting inventory value in those markets. Rajagiriya’s supply rigidity, combined with full absorption, creates scarcity-driven appreciation, especially attractive for mid to long-term investors.

Implications of Baili Investment development

In a market starved for new supply, Baili Investment’s upcoming mixed-use development, backed by a Hong Kong-based construction firm, becomes a high-leverage asset. What’s more captivating is, this project is the first mix development project in a Colombo suburban area and is expected to be the next business and entertainment hub. This upcoming large-scale mix development project in Rajagiriya offers luxury apartments plus a high-end retail mall. In a general note, other upcoming projects are overwhelmingly located in outer zones such as Athurugiriya (488 units), Negombo (401), Ja-Ela (468) and Wadduwa (350), none of which match Rajagiriya’s centrality, infrastructure and its overall appeal.

While Athurugiriya, with 761 existing units and 2025 additional 500 units planned, is becoming oversupplied, Rajagiriya’s position remains protected by its land scarcity. Baili Investment’s development offers modern apartment living, wellness and fitness amenities, leisure spaces and integrated retail facilities, catering to emerging buyer preferences for vertical, self-contained living ecosystems.

In short, Rajagiriya combines limited inventory (306 units), maximum absorption (100 percent) and a singular new project (Baili), with a 51.3 percent two-year price rebound. This convergence of factors defines it as a statistically rare and strategically superior investment destination in Colombo’s suburban apartment market.