House Renovation in Kajang
(2026 Cost & Local Guide)

Indicative Kajang / Klang Valley ranges — get a free WhatsApp quote.

Kajang’s property landscape

Kajang occupies a unique position in the Klang Valley hierarchy: it is far enough from the KL core to maintain lower land and property prices, yet close enough — especially since the Kajang MRT interchange on the Putrajaya (MRT Line 2) and Kajang lines opened — to attract buyers and investors from across the valley. The result is a market where affordable landed housing predominates, lots tend to be generous by Klang Valley standards, and homeowners have more freedom to extend and modify than their equivalents in denser urban townships.

Kajang’s housing stock spans several distinct generations: 1970s–1980s older terrace houses in Kajang town itself and Taman Semarak; 1990s–2000s planned townships in Sungai Chua, Bandar Teknologi Kajang and Kajang Perdana; and a newer wave of 2010s semi-Ds and bungalows in Sungai Long (which straddles the Kajang–Cheras border) and Bandar Baru Bangi. Each generation has its own renovation profile.

Key townships & typical homes

Renovation cost by scope in Kajang (2026)

Use the free renovation cost calculator → for a quick personalised estimate, or see our Malaysia renovation cost guide → for national benchmarks.

MRT & the renovation opportunity in Kajang

The opening of the Putrajaya Line (MRT Line 2) — with stations at Kajang, Sungai Jernih and Taman Semarak — has materially increased Kajang’s connectivity and property appeal. Homeowners in Kajang who renovate now are benefiting from this MRT-driven uplift in two ways:

• Rental yield uplift. Proximity to an MRT station is now a primary rental search filter for tenants who work in KL or Putrajaya. A well-renovated Kajang terrace near Sungai Chua or Bandar Teknologi Kajang commands rental premiums of 15–25% over unrenovated equivalents.
• Capital value appreciation. Kajang landed property prices have risen steadily since MRT2 became operational. A renovation completed in 2026 captures value in a market that is still below KL-equivalent prices — the gap is narrowing.

For investors, a renovation budget of RM60,000–RM100,000 on a Kajang terrace typically delivers a rental yield improvement that recovers the cost within 5–7 years while holding a more valuable asset.

Why Kajang is particularly extension-friendly

Compared to the denser townships of Petaling Jaya, Subang Jaya or Kepong, Kajang’s landed homes typically offer:

• Deeper rear garden setback. Many Kajang terrace houses have rear gardens of 15–25 ft before the back wall, compared to 6–12 ft in denser KL townships. This provides sufficient space for a covered rear extension or wet kitchen annexe within permissible setback rules.
• Wider frontage. Semi-Ds in Sungai Long and BTK often have 30–40 ft frontage, allowing a proper covered porch and car porch cover without encroaching on neighbours.
• Lower per-sq-ft extension cost. Building an additional room in Kajang costs roughly the same per sq ft as elsewhere, but the land is cheaper and the return (rental or lifestyle) is proportionally higher given Kajang’s lower base prices.
• MPKj permit processing. MPKj (Majlis Perbandaran Kajang) is considered efficient relative to some other local authorities for minor extension approvals, particularly for applications submitted with complete documentation.

Most common renovation works in Kajang homes

• Rear wet kitchen extension — RM18,000–RM38,000 including structure, tiling and plumbing. Very popular in Sungai Chua and BTK. MPKj plan approval required.
• Kitchen renovation (dry kitchen) — RM15,000–RM35,000 for a standard Kajang terrace kitchen.
• Bathroom overhaul — RM7,500–RM16,000 per bathroom. Full hack, waterproofing membrane, retile, new fittings.
• Full house rewiring — RM7,000–RM14,000 for a double-storey terrace. Essential for 1980s and early-1990s homes.
• Re-piping (UPVC) — RM5,000–RM9,000. Critical for homes with original galvanised steel pipes.
• Interior painting — RM3,800–RM7,500 for a double-storey terrace; paint quality is important in Kajang’s high-humidity east-facing estates.
• Car-porch cover / extended porch — RM7,000–RM15,000; MPKj permit for permanent structures.
• Roof repair or partial re-roofing — RM5,000–RM18,000; older Kajang homes are particularly prone to worn roof underlays and deteriorating timber battens.

MPKj permit process for Kajang homeowners

Renovation works requiring MPKj (Majlis Perbandaran Kajang) approval include any structural modification: extensions, new rooms, permanent car-porch structures, load-bearing wall removal, and second-floor additions. The process:

For a renovation permit overview covering all councils, see our renovation permit Malaysia guide →.

Indicative renovation cost table for Kajang (2026)

Renovating 1980s–1990s Kajang homes

Kajang has a meaningful stock of homes from the 1980s — particularly in Kajang town, Taman Semarak and Taman Bukit Mewah. These properties are 35–45 years old and require a more thorough assessment before renovation begins:

• Structural inspection. Request a basic structural assessment from a registered civil/structural engineer before budgeting for an extension. Confirm the slab, beams and columns are sound and can support the intended addition.
• Electrical hazard priority. Pre-1990 wiring in Malaysia was often rubber-insulated and must be treated as a fire risk. A full rewire is non-negotiable before doing any other renovation on these homes.
• Original roof tile condition. Clay and cement tiles from the 1980s are often still serviceable, but the timber battens, underlayer and ridge mortar may not be. A roofing inspection should precede any internal renovation to avoid water ingress after the interior is finished.
• Contingency budget. Set aside 15–20% for older Kajang homes; surprises (concealed plumbing, old reinforcement, soil movement under extensions) are common once works begin.

Considering a Puchong comparison? See our house renovation in Puchong → for another mature landed township perspective.

Choosing a renovation contractor in Kajang

• Verify local project experience. Ask for photos of completed Kajang or Sungai Long projects of a similar scope to yours. Contractors familiar with Kajang’s construction style (common slab types, standard lot sizes, typical pipe routing) work more efficiently.
• Three itemised quotes minimum. The Kajang market has a wide range of contractor quality and pricing. An itemised quote lets you compare like for like — not just totals.
• Confirm MPKj permit handling. If your scope includes a structural extension, ask whether your contractor has submitted MPKj building plans before and whether they can recommend a registered draughtsman or architect.
• Milestone payment structure. 10% deposit, 40% on mobilisation and rough works, 35% on tiling and carpentry, 15% on practical completion and snag sign-off. Avoid any contractor requesting more than 30% before works begin.

Common Kajang renovation mistakes to avoid

• Underestimating the extension approval timeline. MPKj plan approval for an extension can take 6–10 weeks during peak periods. Do not assume you can start building within 2 weeks of submitting plans.
• Skipping the structural inspection on old stock. A 1980s Kajang terrace may look solid but concealed cracks, differential settlement or inadequate foundations become expensive to fix after the new kitchen or extension is already built over them.
• Buying materials before finalising the scope. Kajang’s proximity to hardware suppliers in Kajang town is an advantage — but purchasing tiles or cabinets before the contractor has confirmed dimensions wastes money and causes delays when sizes don’t match.
• Neglecting exterior painting. Kajang’s weather (exposed east-south-east facing estates get heavy afternoon rain) means exterior surfaces degrade quickly. Budget for a quality exterior weathershield coat alongside the interior renovation.

Next steps for your Kajang renovation

Kajang is one of the best-value renovation markets in Klang Valley in 2026 — MRT connectivity, bigger lots and lower land costs make renovating here particularly rewarding. Start with an itemised scope list, get three quotes, confirm MPKj obligations for any structural works, and set aside a realistic contingency.

Useful reads: Full house renovation cost Malaysia → · Condo renovation cost → · Free renovation cost calculator →