The planning method covers both new BTO layouts and older resale stock in estates such as Tengah, Bidadari, Tampines, Punggol, Hougang and Sengkang. Compact kitchens, household shelters, service yards, structural walls and existing wet areas all influence what is practical.
High-Intent Renovation Budget & Scope Benchmarks
Use these as scope-testing briefs for quotation comparison, not fixed packages or guaranteed prices. A measured, itemised quotation should control the final contract value.
| Planning brief | Target budget (SGD) | Scope to test inside the budget | Important qualification |
|---|---|---|---|
| 4-Room BTO target brief | S$50,000–S$65,000 | Masonry as required; full kitchen cabinetry; quartz or equivalent specified counter; plumbing; vinyl flooring where selected; painting; electrical works | Achievability depends on carpentry quantity, hacking/wet works, material grade, appliance interfaces and exclusions. |
| 5-Room resale HDB target brief | S$95,000–S$140,000 | Full or substantial hacking; rewiring; re-piping where required; two-bathroom waterproofing/tiling; custom carpentry | Existing-condition risk, floor area and replacement scope can move the total above this planning band. |
| 3-Bedroom condo target brief | S$70,000–S$95,000 | Concealed carpentry; selected feature-wall panelling; electrical repositioning; floor polishing / selective finish upgrades without a full wet-work overhaul | MCST restrictions, retained developer finishes and wet-area scope are major variables. |
HDB planning
Start with what the flat allows
Before proposing open-plan living or moving wet functions, the unit plan and renovation rules need to be checked. Structural walls and protected elements cannot simply be removed because a reference image shows a larger opening. Where a permit or endorsement is required, that requirement should be known before demolition is scheduled.
For everyday planning, we focus on clear furniture zones, storage depth, kitchen workflow, service-yard use, power-point locations and the way doors affect circulation. These decisions are especially important in 2-Room Flexi and 3-room flats where every full-height cabinet changes the sense of width.
BTO and resale
HDB interior design, New flats and older flats need different scopes
A BTO normally begins with a more predictable base condition, although Optional Component Scheme finishes and developer-provided items still affect what should be retained or replaced. A resale HDB can include old wiring, plumbing, ceilings, built-ins and waterproofing that need condition assessment before the final scope is fixed.
Executive, jumbo and maisonette layouts introduce more zoning and circulation choices. Split levels and larger footprints can support stronger separation between social and private areas, but they also increase the number of interfaces that must be coordinated.
Compliance
Permits and site rules are part of the design programme
HDB renovation controls can change, so current requirements should be checked for the exact work scope. The programme should allow time for approvals where needed rather than treating permits as paperwork that can be solved after demolition starts.
The Local INN.terior’s HDB directory reference is HB-11-5365A. Homeowners should independently verify current registration and applicable HDB rules before appointment and before approving regulated works.
HDB flat types
Plan 2-Room Flexi through 3Gen around different household patterns
A 2-Room Flexi flat needs concentrated storage and careful furniture scale because a few deep cabinets can dominate circulation. Three-room flats need similar discipline while preserving a useful second bedroom. Four-room homes usually have more flexibility to balance family storage, work-from-home use and entertaining. Five-room and 3Gen layouts allow stronger zoning but still benefit from a clear hierarchy rather than filling every wall with built-ins.
Household shelters, structural walls, service yards and original wet-area positions are physical constraints, not styling decisions. The design should make them part of the composition instead of trying to conceal them at the expense of access or ventilation.
Quotation transparency
Compare line items and variation rules before comparing the bottom line
For homeowners worried about hidden variation orders, the useful test is whether the quotation defines quantities, materials and exclusions clearly enough to distinguish a genuine site variation from an omitted item. A homeowner review reproduced on The Local INN.terior website describes an eight-to-nine-page quotation with detailed line descriptions, compared with shorter competing quotations. That is evidence of quotation detail, not a promise that no legitimate variation can ever occur.
Ask how unforeseen substrate conditions, owner-requested changes, authority requirements and material substitutions are priced. A fixed headline number is only meaningful when the scope beneath it is equally clear and measurable.