Full House Refurbishment Costs in NW3

Introduction

A full house refurbishment — stripping a Victorian or Edwardian house in NW3 back to its structural shell, replacing all services, and completely refitting and finishing the interior — is one of the most significant residential investment projects available to a north London homeowner. It is typically undertaken when a property is purchased in poor condition or has not been updated for many decades, and the opportunity exists to create a home of genuinely high specification from the beginning. This guide explains what a full refurbishment involves, what it costs, and how to approach the budget for an NW3 property.

What a Full Refurbishment Includes

A full refurbishment of a Victorian or Edwardian house typically includes:

Strip out and demolition: Removal of all internal finishes, fittings, kitchen, bathrooms, and services to expose the structural shell
Structural works: Any structural alterations — removal of walls, new steel beams, alterations to openings, basement works if included
Services infrastructure: Full electrical rewire, new heating system and boiler or heat pump, new plumbing throughout, new drains where required
Building fabric improvements: Insulation to floors, walls (internal) and roof, draught-stripping of original windows, secondary glazing in conservation areas
Internal finishes: New plasterboard linings, plaster finishes, new ceilings, new internal doors and ironmongery, skirtings and architraves
Kitchen: New kitchen with appliances, worktops, and finishes
Bathrooms: All bathrooms new — sanitaryware, tiling, shower enclosures, mirrors and accessories
Flooring: New floor finishes throughout — typically retained original timber boards on upper floors where sound, new stone or porcelain tiles in kitchen and bathrooms, new engineered timber or stone in ground floor extensions
Decoration: Full decoration throughout — plasterwork repairs where original fabric is retained, painting, wall coverings

What Is Not Typically Included

A construction refurbishment contract typically excludes:

Furniture and soft furnishings
Curtains and window treatments
Artwork and decorative objects
AV equipment and home cinema fit-out (where provided by specialist contractor)
External works and landscaping (sometimes included, sometimes separate)

Cost per Square Metre by Specification Level

Specification Level	Scope	£/sqm (NW3, 2026)
Light refurbishment	Decoration, new kitchen, new bathrooms only — no structural or services works	£800–£1,500/sqm
Medium refurbishment	Above plus new services (rewire, replumb, heating), insulation, new floors	£1,500–£2,500/sqm
Full refurbishment	Full gut and refit including all services, structural alterations, bespoke joinery, high specification finishes	£2,500–£3,500/sqm
High specification full refurbishment	As above with premium kitchen, stone floors, smart home, bespoke fitting throughout	£3,500–£5,000+/sqm

Typical Total Project Cost for a Victorian Terrace in NW3

A typical Victorian terrace house in NW3 (5 bedrooms, 220 sqm gross internal area, with rear extension and loft conversion already in place) at full high-specification refurbishment:

Element	Cost Range
Strip out and demolition	£20,000–£40,000
Structural works (openings, steels, minor alterations)	£30,000–£60,000
Electrical rewire (full house)	£25,000–£45,000
Plumbing (full replumb, unvented cylinder)	£20,000–£40,000
Heating (system boiler or ASHP, radiators or UFH)	£25,000–£60,000
Insulation and building fabric improvement	£15,000–£35,000
Plasterboard, plaster, ceilings	£30,000–£55,000
Internal doors, ironmongery, joinery	£20,000–£50,000
Bespoke kitchen (semi-bespoke to bespoke)	£35,000–£100,000
Bathrooms x 4 (mid to high spec)	£40,000–£100,000
Flooring throughout	£30,000–£70,000
Decoration	£25,000–£45,000
Smart home, AV, security	£15,000–£60,000
Total construction (exc. VAT, fees)	£330,000–£760,000
VAT (20%)	£66,000–£152,000
Professional fees (12–15%)	£40,000–£114,000
Contingency (10–15%)	£33,000–£114,000
Total project budget	£469,000–£1,140,000+

Programme

A full house refurbishment of a typical NW3 Victorian terrace (without basement) typically takes 9–16 months on site. Projects including structural alterations, basement works, or exceptional specification complexity extend toward 18–24 months.

Conclusion

A full house refurbishment in NW3 is a major financial undertaking — but one that, when executed well with high specification and design quality, creates a property that is genuinely exceptional in the north London residential market. The budget ranges set out in this guide reflect the reality of the current NW3 construction market. Understanding the full scope of costs — construction, VAT, professional fees, and contingency — before committing to a project is essential. An architect experienced in high-specification NW3 refurbishments will provide a realistic cost framework at feasibility stage, manage the design to specification, and deliver the project to the standard the market expects. See our guide on professional fees for a full breakdown of the advisory costs involved.