Home Extension Paddington — Design, Approval, Structural, Build
Full-service extensions in Paddington 2021: structural survey of existing 1840s–1900s Victorian terraces home, design, Woollahra Municipal Council approval, engineering, weatherproofed construction, matched finish to original dwelling.
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MBA NSW0476 300 300Quick Answer
A home extension in Paddington costs $150,000–$600,000+. Rear extension from $150K, second-storey addition from $300K. Buildana manages design, Woollahra Municipal Council approvals, and construction under one fixed-price contract.
Second-Storey & Rear Additions in Paddington
Paddington has the highest density of heritage terraces in Sydney, and every one of them extends the same direction: backwards. Heritage Conservation Areas blanket virtually all streets, so the Victorian frontages, the cast-iron lacework, the streetscape — none of it is negotiable. A home extension here means reworking the rear of a 150–350m² terrace: kitchen and living opened to the courtyard, sometimes a discreet attic level within the existing roof form.
The construction reality is party walls both sides, no side access, and materials moving through the front door or craned over the roof. It's slow, exacting work — and it's what separates builders who've done terraces from builders who haven't. In a $3.0M–$6.5M market, a well-executed rear extension repays every logistical headache. Ask us how we'd sequence yours before anyone lifts a tool.
Buildana manages the complete home extension process in Paddington — from design consultation and structural engineering through to DA or CDC approval, and fixed-price construction to handover. Extend your home without the stress.
Read our Home Extension Cost Guide 2026 or explore extension approval pathways in NSW.
- Home extensions in Paddington from $150K
- Woollahra Municipal Council DA and CDC approvals managed
- Ground floor, rear and second-storey additions
- M — structural engineering included
- 1840s–1900s Victorian terraces-era homes assessed for extension suitability
- Connect new to existing — clean, matched finish
- 6-year structural warranty
- Free design consultation — near Edgecliff (1 km) station
Reviewed by Oliver Alameri
Licensed Builder (NSW 487805C) · Master of Property Development · PhD Student · Building across Western Sydney since 2010
Backwards is the only direction
Paddington's HCAs make the frontage non-negotiable — so every terrace extends backwards: kitchen and living opened to the courtyard, sometimes a discreet attic level within the existing roof form.
In a $3.0M to $6.5M market, the well-executed rear build repays every logistical headache.
Terrace logistics, sequenced properly
Party walls both sides, no side access, materials through the front door or craned over the roof — slow, exacting work that separates terrace builders from the rest.
The sequencing is planned before anyone lifts a tool, and the Victorian fabric gets licensed handling.
Home extension builder in Paddington — key facts
- Suburb
- Paddington, NSW 2021
- Council / LGA
- Woollahra Municipal Council (Woollahra)
- Primary zoning
- R2 Low
- Typical lot size
- 150–350m²
- Soil class
- M
- Median house price
- $3.0M–$6.5M
- Home era
- 1840s–1900s Victorian terraces
- Typical price range
- $150,000 – $600,000+
- Typical timeline
- 6–12 months design to handover
- Approval pathway
- CDC for most rear extensions, DA for second-storey
Want a real number for YOUR block — not a generic estimate?
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Cost Guide
| Item | Estimated Range |
|---|---|
| Simple rear extension (single wall removal, no roof change) | $117,000 – $260,000 |
| Moderate extension (multiple openings, roof extended) | $260,000 – $490,000 |
| Complex extension (structural steel portals, re-roofing) | $490,000 – $780,000 |
| Second-storey tie-in (existing house re-engineered) | $460,000 – $850,000 |
Prices are indicative for Western Sydney (2025). Actual costs depend on site, specifications, and approvals.
How It Works
From First Call to Final Key
The first job on an extension is finding out what you're extending onto. Paddington homes from the 1840s–1900s Victorian terraces were built to different standards — we open walls, check footings, verify load paths. The existing house has to carry the new work.
⏱Design follows the existing roof. A bad extension looks like a bolt-on; a good one reads as original. Matched brickwork or contrasting render (whichever the architecture calls for), tied-in roofline, continuous flooring where it should be continuous.
⏱Construction happens while you live in the house. That means weatherproofing every night, staging the works so kitchens and bathrooms don't disappear on the same week, and keeping the site clean of debris that doesn't belong in a family home.
⏱Finish is seamless. Paint match, floor match, roofline match, brick match where possible. The only way to tell the extension is new is the date on the plans.
⏱Our Team
Oliver Alameri
Founder / Director / Builder · MPropDev · PhD Student
Ahmad Alameri
Accounts Manager
Claire Wendell
Project Manager
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30-min free call — bring your block, your brief, your budget. We'll map out feasibility, timeline, and realistic cost. No sales pitch.
Frequently Asked Questions
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Liverpool, NSW
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Last updated: 1 April 2026
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Free design consultation for Paddington 2021. We'll assess your home, design the extension, and provide a fixed-price quote.
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Other Buildana services in Paddington
Costs, approval pathway and fixed-price contract detail for every other build type we deliver in Paddington 2021. Woollahra Municipal Council regulations and local controls are covered on each page.