NAO assesses progress of Parliament Restoration and Renewal Programme

Latest News Mon, Jun 15, 2026 5:31 AM

A new National Audit Office (NAO) report examines the progress and evidence underlying the costed proposals for the programme to restore and renew the Palace of Westminster (the Palace) and assesses them against established practice to determine whether the programme is currently set up for success.

The Palace, a Grade I listed building within a UNESCO World Heritage site, requires extensive restoration to address serious risks, including failing mechanical and electrical systems, fire safety issues and high levels of asbestos.

The Restoration and Renewal Programme (the Programme) is intended to address these concerns.

The Programme is now at a critical stage, with parliamentary approval being sought to reduce the number of options from four to two.

Image: Restoration and Renewal of Parliament - National Audit Office

The two recommended options are:

  • Full decant: £11.1 billion to £15.6 billion, 19 to 24 years
  • Enhanced Maintenance and Improvement plus (EMI+): £19.5 billion to £39.2 billion, 38 to 61 years

Building on its previous work, this new report by the independent public spending watchdog finds that further delaying the decision on which option to pursue carries risks to achieving value for money, with each year of delay adding between £320 million to £420 million to the overall cost of delivering the Programme.

Although the options and their underlying estimates have been through a standard process of development and have been subject to internal and external checks to examine and assure them, all are at an early stage and are likely to face cost and schedule pressures as designs develop.

The costed proposals provide enough information for a decision, although the EMI options are less developed and more uncertain.

The proposals also recommend that Parliament approves an initial seven-year programme of ‘Phase One’ enabling works capped at £3 billion.

Undertaking these works is a sensible approach, as this allows the Programme to progress while managing several risks. But plans for how the works will be overseen and delivered need to be finalised.

Suitable temporary accommodation is essential if the Houses are to decant and Parliament is to function properly. All Programme options depend on this accommodation being ready on time, but current risks could delay the move, particularly the full decant option.

The Programme must also strengthen its governance arrangements to be able to bear down on cost, schedule and scope; manage interdependencies across the Programme; and support Parliament’s decision on the final delivery option.

To put the Programme on a stronger footing, the NAO recommends that the responsible delivery teams:

  • publish and regularly update a clear, non-technical summary, potentially alongside its business case, akin to Strategy and Delivery Plans used for mega-projects
  • provide cost estimate ranges for all ‘Phase One’ work packages and set out how interdependencies between key projects will be managed
  • ensure that links and decision-making responsibilities between projects across the Programme and related work on the Parliamentary estate are managed through a single, integrated delivery plan
  • work with MPs and Lords at speed to create a clear vision for how each House, and Parliament as a whole, will operate in their temporary accommodation
  • review the Programme’s governance arrangements to set clear requirements and hold those delivering to account

Featured News

Specification news
BESA aims to measure safety culture ‘in practice’

The Building Engineering Services Association (BESA) has launched its third annual...

Read More >>

Specification news
Fusion21 appoints suppliers to £85 million UK-wide...

Following a competitive open tender process, Fusion21 has appointed 22 suppliers to...

Read More >>

BUILDING PRODUCT LIBRARY - LATEST BROCHURES

Master Catalogue Brochure

Master Catalogue
By F.H. Brundle

Download Now >>

Paints & Coatings Brochure

Paints & Coatings
By F.H. Brundle

Download Now >>

Cedral Roofs Brochure Brochure

Cedral Roofs Brochur...
By Cedral by Etex

Download Now >>

Cedral Facades Brochure Brochure

Cedral Facades Broch...
By Cedral by Etex

Download Now >>

2026 Product Brochure Brochure

2026 Product Brochur...
By ​The Radiator Compan...

Download Now >>

BUILDING PRODUCT DIRECTORY - LATEST PRODUCTS

Cedral Birkdale
Cedral Birkdale

Cedral - Birkdale fibre cement slate has a smooth surface and dressed edges. It offers a traditional...

Read More >>

Cedral Thrutone Smooth
Cedral Thrutone Smooth

Cedral - Thrutone Smooth are a low-profile fibre cement slate that features a smooth surface and...

Read More >>

Cedral Rivendale
Cedral Rivendale

Cedral - Rivendale slates are designed to reflect the qualities of natural slate. Available in...

Read More >>

CONSTRUCTION VIDEOS - LATEST VIDEOS

Fortitude™ Steel Railing Systems: Adjustable Off-the-Shelf Balustrade Guide
Fortitude™ Steel Railing Systems: Adjustable Off-the-Shelf Balustrade Guide

Fortitude Steel Railings and Balustrades are one of the most versatile, off-the-shelf, steel...

Watch Now >>

Pro-Railing® Stainless Steel Handrail Systems: 6 Modern Balustrade & Glass Railing Solutions
Pro-Railing® Stainless Steel Handrail Systems: 6 Modern Balustrade & Glass Railing Solutions

Pro-Railing® – our Stainless Steel Handrail Component System with six stunning ranges to choose...

Watch Now >>

Why Professionals Choose Outdure QwickBuild | Aluminium Deck Frame Case Study
Why Professionals Choose Outdure QwickBuild | Aluminium Deck Frame Case Study

This case study explores a stunning designer terrace featuring the Outdure QwickBuild system,...

Watch Now >>