Landed property renovation in Singapore
from interior works to full A&A.

Terrace houses are the most common landed renovation we handle. An interior renovation of an inter-terrace typically costs $120,000–$300,000 and runs 4–6 months on-site. Corner terraces add side-extension potential under A&A rules, which is often the most cost-effective way to gain floor area without a rebuild.

The usual scope: full rewiring and re-piping (most terraces are 30+ years old), waterproofing at the roof and rear service area, staircase reworking, and opening up the ground floor for a connected kitchen-living-dining flow. Conservation terraces in areas like Joo Chiat and Emerald Hill carry URA facade rules our panel Architects handle.

For a detailed cost breakdown, see our guide to terrace house renovation costs and rules, or read what it costs to renovate a landed property across all typologies.

A&A (Addition & Alteration) works follow a defined approval path: a registered Architect prepares and submits plans for URA written permission, a Professional Engineer endorses the structural design for BCA submission, and construction can only start once both clear — typically 2–4 months. URA requires that at least 50% of the external walls and a substantial portion of the roof are retained for the project to qualify as A&A rather than reconstruction.

Height and envelope controls apply throughout: most 2-storey mixed landed zones cap buildings at 12m (3 storeys plus attic), with setback and site-coverage rules that shape what an extension can look like. Getting this right at feasibility stage — before design falls in love with something unbuildable — is exactly why we start every landed project with a site survey.

We cover the full submission mechanics in our A&A submission guide, and if you are still weighing the options, A&A vs reconstruction walks through how to decide.

Landed renovation sits in a regulatory gap that catches many homeowners: interior design firms without a builder licence cannot legally carry out structural works, while pure main contractors build well but leave design decisions to you. Check three things before signing with anyone: a BCA builder licence (searchable on the BCA directory), CaseTrust accreditation (your deposit is protected under a standard contract), and completed landed projects you can actually see.

MET Interior holds all three — BCA Licensed Builder, CaseTrust accreditation, and a landed portfolio built since 2011 — with design and construction under one contract. That matters most when something unexpected surfaces mid-build: there is no gap between the designer who drew it and the builder who has to solve it.

Budget-wise, our A&A cost guide breaks down where the money goes, and 17 common landed renovation questions covers the practical details owners ask us most. If your project is more about interiors than structure, start with our landed property interior design service instead.