Shophouse Renovation
Converting the Upper Floor into a Home (2026)

First: what is the upper floor approved for?

Shophouse upper floors are used as homes, offices, stores, hostels and tuition centres, and not all of them are approved for what they are used for. Before you design anything, find out the approved use from the building plan and the title, and ask the council if in doubt. ClickBina's guide to renovating without a permit lists a change of use, such as residential to commercial, among the works that need council approval, alongside structural changes and extensions.

If the floor is already approved for residential use, a renovation is mostly an ordinary one, with the shophouse quirks below. If it is approved as office or commercial space, living there is a change of use and the council decides. Do not assume a previous tenant's use proves anything.

Approvals and who to talk to

ClickBina's commercial renovation permit guide explains the council and Bomba submissions in detail. Skipping them is not a small risk: under the Street, Drainage and Building Act, building or altering without approval can bring a fine of up to RM10,000, and the council can order the work to be undone.

Older shophouses, especially pre-war rows in town centres, may sit in a conservation or heritage area. Ask the council whether any special controls apply to the facade, roof or windows before you plan changes to them.

Fire safety: the shop below and the way out

A shop below and homes above are different uses in one building. ClickBina's fire-rated door guide explains that the floor or wall between them is treated as a fire compartment, so any door through it has to meet the fire door rules for that wall. In practice, for a home above a shop, that means:

• Keep the staircase to the street or back lane clear and usable as the way out.
• Do not lock the upper floor in behind a grille that only opens with a key from the inside.
• Do not cut new openings in the floor between the shop and the home without advice.
• Fit smoke detectors in the living areas and the stair.
• Be especially careful above a restaurant or workshop, where the fire risk below is higher.

Layout: a long, narrow floor

Most shophouse floors are deep and narrow, with windows only at the front and back. Rooms in the middle get little daylight or air. That matters for more than comfort: ClickBina's co-living guide notes that the building by-laws require natural light and ventilation for habitable rooms, and that an internal room with no external window may not qualify as a bedroom.

• Put bedrooms at the front and back where the windows are.
• Use the dark middle for the stair, bathrooms, storage, a kitchen with mechanical extraction, or an open living space.
• Where the building has an air well, or the top floor can take a skylight, use it to bring light into the middle.
• Use lightweight partitions on upper floors; a heavy brick wall adds load to an old floor.

Adding a kitchen and bathrooms above a shop

Wet areas are where upper-floor conversions go wrong, because a leak does not stay in your home: it lands in the shop below. New bathrooms and a kitchen need proper waterproofing with a flood test before tiling, floors laid to fall to a floor trap, and a drainage route down to the building's stack that can be reached for repairs. ClickBina's ground-floor shoplot guide notes that a leak from the floor above is one of the first problems a shop tenant inherits; agree in writing who pays if one happens.

Check the water supply as well. Upper floors are often fed through an old tank or a long pipe run, and pressure at the top floor can be weak.

The roof and walls

If you are converting the top floor, the roof is part of the job. Many shophouses have a flat concrete roof crowded with tanks, pipes and condenser stands, and ClickBina's shoplot waterproofing guide prices a full flat roof system at RM8 – RM20 per sq ft. A pitched tile roof on an older shophouse brings its own problems: broken tiles, rotten battens and leaking valleys. External walls shared with neighbours can let in damp at the party wall and along the roof line.

Power, noise and smells

• Power: old shophouse wiring is often overloaded and patched. A separate supply and meter for the home, a new distribution board and a rewire are common. See ClickBina's house rewiring cost guide.
• Noise: a shop's shutter, customers, deliveries and aircon condensers all come up through the floor and walls. An insulated ceiling below or a floating floor finish helps.
• Smells and heat: above a restaurant, kitchen exhaust and grease can rise into the home. Find out where the extraction runs before you sign.
• Access: a separate entrance for the home, with its own lock, keeps the shop and the residence apart.

What the main items usually cost

There is no single price for a shophouse conversion; the building's condition decides it. These are ClickBina's published ranges for the main items (indicative 2026, Klang Valley).

Approvals, professional fees and any structural work are extra and are quoted per job.

A sensible order of work

1. Confirm the approved use and whether a change of use or other approval is needed.
2. Survey the building: roof, floors, walls, wiring, plumbing and the stair.
3. Fix the envelope first: roof, external walls and any leaks.
4. Agree the layout around light, air, the stair and the wet areas.
5. Do the approvals, then the services: power supply, rewiring, plumbing and drainage.
6. Build wet areas with waterproofing and a flood test before tiling.
7. Finish with ceilings, flooring, carpentry and painting.

How ClickBina can help

WhatsApp us your job details for a quote: the location, how many floors you are converting, what the floor is used for now, and what you want to build. ClickBina is an experienced KL & Selangor contractor for whole-house refurbishment and trade coordination, from the roof down to the finishes. We reply within the hour, and the price we agree is a flat price with no hidden charges. A site visit is RM150, waived if you go ahead.

Sources & methodology

• ClickBina renovation without a permit guide — change of use as a council matter, and the Act 133 fine.
• ClickBina commercial renovation permit, fire-rated door and co-living guides — council and Bomba submissions, compartment floors, light and ventilation.
• ClickBina bathroom renovation, house rewiring, shoplot waterproofing and partition wall cost guides — item prices.

How we estimated prices: every RM figure on this page is quoted unchanged from the ClickBina guides named above; they are indicative Klang Valley ranges for 2026.