
Specialist assessments for every block type.
When a block is underinsured, the average clause reduces every claim - and every leaseholder shares the consequence. A specialist assessment establishes the correct declared value and protects all parties under the policy.

Why block assessments are complex.
Blocks of flats involve cost elements that generic calculators and market-value approaches overlook entirely. Shared structures, communal services and leaseholder obligations create a unique risk profile.
Shared Structures
External fabric, roof, foundations and structural elements must be valued at full rebuild cost, not apportioned.
Communal Services
Lifts, boiler plant, communal lighting and shared M&E infrastructure all carry costs generic tools miss.
Leaseholder Obligations
A wrong declared value triggers the average clause and reduces every leaseholder's claim, not just the freeholder's.
Why block assessments are complex.
Blocks of flats involve cost elements that generic calculators and market-value approaches overlook entirely. Shared structures, communal services and leaseholder obligations create a unique risk profile that requires specialist assessment.
What's Included in a Block Assessment
Full structural rebuild cost - walls, roof, foundations, external fabric
Communal areas and shared circulation space
Lifts, plant rooms and shared M&E services
Professional fees - architects, engineers, project managers
Demolition and site clearance costs
VAT correctly applied to each element
BCIS-indexed figure with annual uplift schedule
Broker-ready report in 24 hours
What we assess.

Purpose-built apartment blocks
Modern and traditional flat developments across the UK, assessed to current BCIS construction cost indices.
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Converted houses
Victorian and Edwardian houses converted into flats. Shared areas, services and original fabric all require assessment.
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Mansion blocks
Large-scale residential buildings with multiple units and extensive communal facilities.
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Mixed-use developments
Buildings with residential flats above commercial or retail premises. Residential and commercial elements itemised separately for correct VAT treatment and service-charge recharging.
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Leasehold estates
Multiple buildings on a single estate under common management or ownership, with a consolidated portfolio schedule.
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Portfolio instructions
Multiple blocks assessed under a single instruction with individual reports and a consolidated schedule. Staggered scheduling keeps all blocks on a compliant review cycle simultaneously.
Learn moreManaging multiple blocks? Our portfolio assessment service covers all properties under a single instruction with a consolidated compliance schedule.
Pick the assessment that fits your property.

01. Desktop
Desktop Rebuild Cost Assessment
BCIS-indexed rebuild cost modelling without a site visit. Delivered within 24 hours of instruction. Accepted by all UK insurers.
- RICS-regulated, broker-ready report
- BCIS-indexed rebuild cost modelling
- Delivered within 24 hours of instruction
- Accepted by every UK insurer
Listed or non-standard property? An On-Site Survey may be required instead.

02. On-Site
On-Site Rebuild Cost Assessment
A RICS surveyor attends in person for full measurement and construction analysis. Required for listed, heritage and complex buildings.
- RICS-regulated, broker-ready report
- Surveyor attends in person, full measurement
- Required for listed, heritage & complex buildings
- The insurer-preferred option for high-value risk
- Accepted by every UK insurer
Managing more than one property? Ask about the 3-Year Protection Plan.

03. Recommended
3-Year Rebuild Cost Assessment Plan
One instruction covers three years of RICS compliance: a full Rebuild Cost Assessment in year one, then an updated renewal report before each renewal date after that.
- RICS-regulated, broker-ready report
- Full assessment year one, indexed updates years two & three
- One instruction, one invoice - no re-instructing
- The preferred choice for agents & portfolio landlords
- Accepted by every UK insurer
Saves the cost and admin of re-instructing every year.
The trusted choice for homeowners.
RICS Regulated
Every assessment is carried out by or under the supervision of a RICS-registered member.
Fully Insured
Every instruction is covered by comprehensive professional indemnity insurance for your protection.
24-Hour Response
We respond to every enquiry within 24 hours and deliver on the timescales we agree.
Insurer-Ready Report
A clear, defensible figure accepted by every UK insurer and broker, without amendment.
Related services

Our Services
Desktop, on-site and 3-Year Protection Plan: pick the assessment that fits your property.
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Managing Agents
Discharge your compliance obligation and protect your PI file with a defensible valuation.
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Freeholders & Leaseholders
Defend the insuring covenant, or challenge an inadequate sum insured independently.
Learn morearrow_forwardCommon questions.
Common questions about Rebuild Cost Assessments for blocks of flats.